Welcome to the Plant Management Network's Focus on Soybean, a web-based portal that includes educational webcasts, searchable resources, and websites that help plant practitioners enhance the health, management, and production of soybean crops. en-us http://www.plantmanagementnetwork.org/infocenter/topic/focusonsoybean/ The Plant Management Network Bill Johnson, Ph.D. This presentation will help consultants, growers, and other practitioners in the NorthCentral region(s) understand the unique biology of this weed and why it is difficult to control with our current practices. We will discuss emergence patterns, why it has become such a problematic weed to manage in our current soybean cropping systems, and tactics recommended to reduce the impact of this weed on soybean yields. Fri, 03 May 2013 12:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/Burndown/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/Burndown/ David Holshouser, Ph.D. This presentation will help consultants, growers, and other practitioners in the Mid-Atlantic region implement practices to increase soybean yield planted after small grain harvest. Specifically, the presentation discusses the main differences between full-season and double-cropped soybean and makes recommendations to enhance double-cropping advantages and minimize disadvantages. By the end of this presentation, the learner will better understand practices and techniques that will allow him or his clients to improve double-cropped soybean production. Wed, 01 May 2013 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/DoubleCropped/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/DoubleCropped/ Vince M. Davis, Ph.D. This presentation will help consultants, growers, and other practitioners in the North Central U.S. evaluate the importance of residual herbicide use in soybean systems to maximize profit and proactively manage for herbicide resistance. Herbicide-resistant weeds are a serious threat across the Nation. It is important to maximize the benefits of cultural weed control by using the best agronomic management practices. However, the cost of soybean seed is dramatically increasing and this presentation discusses the interaction and relative importance of residual herbicide verses extra soybean plants in the canopy. Mon, 01 Apr 2013 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/residualherbicide/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/residualherbicide/ Ron Hammond, Ph.D. This presentation will help consultants, growers, and other practitioners in the Midwest, Eastern, and Mid-Atlantic regions manage their slug problems in field crops when using no-till production practices. It will cover basic biology of slugs including life history and how it relates to grower practices, and then discuss an IPM approach to managing the problem. By the end of this presentation, the practitioner should know more about slugs in field crops, and be able to appropriately manage slugs. Mon, 01 Apr 2013 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SlugManagementSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SlugManagementSoybean/ Doug Jardine, Ph.D. This presentation discusses charcoal rot of soybeans. Based on the most recent estimates, charcoal rot is the sixth most serious disease of soybeans in the United States, but its rank increases in years of extensive drought such as 2012. Emphasis in the presentation is on both recognition of symptoms and practical management practices. Thu, 28 Feb 2013 9:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/CharcoalRot/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/CharcoalRot/ William J. Kenworthy, Ph.D. This presentation will help consultants, growers, and other practitioners in all regions understand how the inheritance of soybean cultivar traits impacts the breeding program to develop new cultivars. Important genetic principles which influence selection response and breeding techniques will be discussed. A widely used classical breeding technique to develop new soybean cultivars will be diagrammed. By the end of this presentation, the practitioner should have a better understanding of how soybean cultivars are developed and why some cultivar traits such as yield can vary across locations. Thu, 31 Jan 2013 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/DevelopingSoybeanCultivars/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/DevelopingSoybeanCultivars/ Kenneth Hellevang, Ph.D. This presentation will help consultants, growers, and other practitioners in the United States to dry, handle and store soybeans in a manner to maintain their value. Topics include optimum harvest moisture content, required moisture content to safely store soybeans, value of cooling stored beans, recommended handling methods, hazards of reconditioning soybeans, and recommended practices for both natural air and high temperature drying. It would be a travesty to lose the value of what you have toiled all year to produce because of poor harvesting, drying and storage practices. Thu, 29 Nov 2012 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/soybeanstorage/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/soybeanstorage/ Loren J. Giesler, Ph.D. This presentation will help consultants, growers, and other practitioners in the soybean production regions of the United States make decisions on the use of seed treatment products marketed for nematode management in soybean. This program reviews the commonly marked seed treatment products for soybean nematode management and overviews their active ingredients and modes of action. A summary of a current soybean checkoff funded project in the North Central Region of the U.S. is provided with 30 field trial locations from 2011. The main emphasis of this program is on soybean cyst nematode. By the end of this presentation, the practitioner should know more about seed treatments for nematode management in soybean and have a better understanding of what to expect from said treatments. Fri, 28 Sep 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SeedTreatments/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SeedTreatments/ Shawn P. Conley, Ph.D. In the past 15 years, the soybean industry has seen a dramatic increase in the use of seed treatments in the United States. It is estimated that currently 50% - 70% of all soybean seeds planted in the U.S. are treated. This presentation will help growers, consultants, and researchers understand the trends behind this dramatic increase in seed treatment use, the various factors that go into seed treatment decisions, and it provides a useful risk matrix that helps the user assess their probability of breaking-even on seed treatments. Fri, 28 Sep 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/ReturnOnInvestment/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/ReturnOnInvestment/ Robert Mullen, Ph.D. This presentation will discuss the importance of adequate phosphorus nutrition for soybean production. Specific points of discussion include phosphorus behavior in soil, how soil test critical levels are established, and what phosphorus does for the crop. The goal is provide growers and consultants an understanding of how to make decisions when it comes to supplying phosphorus for soybean production. Thu, 24 Aug 2012 13:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/PhosphorusFertility/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/PhosphorusFertility/ Greg Tylka, Ph.D. Soybean varieties that are resistant to the soybean cyst nematode (SCN), Heterodera glycines, allow farmers to produce the crop profitably in fields infested with the nematode. SCN-resistant soybean varieties allow less nematode reproduction than what occurs on non-resistant (susceptible) varieties. Most (>95%) SCN-resistant soybean varieties have SCN resistance from the soybean breeding line called PI 88788, and the continued use of soybean varieties with such a narrow genetic base of SCN resistance has resulted in selection of SCN populations with increased reproduction on resistant varieties in fields. This presentation discusses the role and nature of SCN-resistant soybean varieties and the effects of elevated SCN reproduction on the yield of SCN-resistant soybeans. Thu, 26 July 2012 16:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/scn/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/scn/ Jeremy Greene, Ph.D. This presentation will help consultants, growers, and other practitioners in the southeastern USA identify, scout for, and manage the kudzu bug in soybeans. The original research being conducted in this region is of great importance for stakeholders in the Southeast, but it will be of tremendous value when this pestiferous species invades other portions of the country that grow many more acres of soybeans than grown in the Southeast. Research conducted to date has made it clear that the kudzu bug can cause considerable losses in soybean if not controlled and is a pest species that must be addressed in infested areas. Specifically covered in this presentation are the history of the distribution of the insect in the USA, identification of the life stages of the species, data demonstrating potential yield losses due to the insect, expected control with insecticides, and tentative treatment threshold recommendations. By the end of this presentation, the practitioner should know how to identify the kudzu bug, recognize the various life stages, and have a much better understanding of how and when to control it in soybeans. Fri, 22 Jun 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/kudzu/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/kudzu/ Kiersten Wise, Ph.D. This presentation focuses on the foliar fungal pathogen Cercospora sojina, causal agent of frogeye leaf spot of soybean. Under favorable conditions, this disease can cause substantial yield loss and/or issues with seed quality in many soybean producing regions in the United States. This presentation will discuss the biology of the fungus and conditions that favor infection and disease development. Management options and current recommendations will also be presented. Fri, 22 Jun 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/frogeyeleafspot/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/frogeyeleafspot/ Christian Krupke, Ph.D. The vast majority of the annual crop acreage planted in North America this year will use neonicotinoid treated seed. Neonicotinoids are extremely toxic to honey bees, and recent research has suggested that honey bees that forage near these types of plantings may be at risk and that the risk of lethal exposure to these insecticides is highest during the period while crops are being planted. Dr. Christian Krupke (Purdue Extension Entomology) will present an overview of the current research at Purdue and elsewhere and offer suggestions for field crop producers that can minimize the chances of honey bee exposure to these chemicals in the field. Wed, 30 May 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/protectinghoneybees/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/protectinghoneybees/ Wesley Everman, Ph.D. This presentation will help consultants, growers, and other practitioners in the Southeast and Southern regions understand the current state of herbicide resistance in weeds. Specifically in this presentation, herbicide resistance is defined, resistance management practices are described, and future considerations are explained. By the end of this presentation, the practitioner should know about the current practices available to combat herbicide resistance, future management options, and factors that should be considered when developing a weed management program. Wed, 30 May 2012 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/HerbicideResistance/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/HerbicideResistance/ Terry Kirkpatrick, Ph.D. Root-knot nematodes are a major economic pest in soybeans in the southern U.S. Meloidogyne incognita (southern root-knot) is the most widespread, but M. arenaria (peanut root-knot) is also common where peanut is also produced. Many factors including soil type, soybean cultivar, and nematode population density influence the yield loss potential. Management strategies include using resistant soybean cultivars, rotating to poor or non-host crops periodically, and in some cases, the application of nematicides. Thu, 29 Mar 2012 17:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/RootKnotNematodes/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/RootKnotNematodes/ Edward Sikora, Ph.D. This presentation will provide an update on Soybean rust in the U.S. Topics will include a discussion on general characteristics of the pathogen, including symptom development; the role of kudzu as an overwintering host in the disease life cycle; benefits obtained from the National Soybean Rust project; seasonal weather conditions that favor or limit the development and spread of soybean rust in the U.S.; and fungicide use strategies to combat this disease. Thu, 29 Mar 2012 17:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SoybeanRustUpdate/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SoybeanRustUpdate/ John Rupe, Ph.D. This presentation will help consultants, growers, and other practitioners in the North-Central, and Southern U.S. understand and manage soybean seed quality. A good soybean crop begins with good seed, but there are many factors that can affect the quality of soybean seed. In this presentation, we will describe the differences between seed germination and seed vigor and how seed vigor is measured. We will then cover the major abiotic and biotic factors that affect soybean seed quality, general methods to preserve seed quality and tips for growers buying seed. Thu, 29 Mar 2012 16:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/preservingseedquality/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/preservingseedquality/ William J. Cox, Ph.D. This presentation will help consultants, growers, and other practitioners in the Northeast USA region recommend or select seeding rates for soybean production. We will present studies (small plot and field-scale) that show optimum yields averaged about 200,000 seeds/acre for soybeans in rows of 7.5 inches (drilled), 15 and 30-inches (row crop planter) in the 1990s but now average about 170,000 seeds/acre for untreated and about 140,000 seeds/acre for treated (seed-applied insecticide/fungicide) seed. We did find subtle location by seed treatment by seeding rate interactions so we urge all farmers to conduct their own on-farm tests to fine-tune their seeding rates for each field on their farm. Mon, 16 Jan 2012 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SoybeanSeedingRates/ http://www.plantmanagementnetwork.org/edcenter/seminars/Soybean/SoybeanSeedingRates/ Daniel Kaiser, Ph.D. This presentation will address the causes of Iron Deficiency Chlorosis (IDC) in soybeans and management strategies to increase soybean yields in the presence of IDC. In high pH soils, IDC can cause significant yield reductions and unlike other nutrient deficiencies IDC is not caused by a lack of iron in the soil, rather it is due to an inability of soybeans to utilize the iron in the soil. Research has also shown that high soil moisture and nitrates may increase the risk for IDC. Iron fertilizers can be used with varying success in correcting the problem, but the best results have been achieved with EDDHA iron chelates placed in furrow or by planting an oats cover crop. This presentation is for ag. professionals and farmers and highlights current thoughts and research on IDC. Mon, 29 Aug 2011 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/IDC/ http://www.plantmanagementnetwork.org/edcenter/seminars/IDC/ Erin W. Hodgson, Ph.D. This presentation reviews a sampling plan for making treatment decisions for soybean aphid called Speed Scouting. This scouting tool will save you time and protect yield during soybean aphid outbreaks. We will review how to use Speed Scouting and the advantages to the plan compared to whole plant counts. The presentation will provide some examples of possible treatment decisions and a new paperless way to sample. Tue, 26 Jul 2011 14:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/AphidSpeedScouting/ http://www.plantmanagementnetwork.org/edcenter/seminars/AphidSpeedScouting/ Ames Herbert, Ph.D. This presentation will help consultants, growers, and other practitioners in the soybean growing regions of the U.S. and Canada learn more about the spread and potential impact of brown marmorated stink bug (BMSB) on soybean. BMSB, a native species of Asia, was first identified in the U.S. in 2001 in Allentown, PA. It has since spread throughout much of the U.S. and in the mid-Atlantic states is causing near catastrophic levels of damage to many horticultural crops including fruits, vegetables, wine grapes, and others. It is also been documented as a pest of soybean, especially in Maryland, and is spreading south and westward. This presentation will provide images of BMSB injury to soybean pods, seed, and the 'stay-green' condition in fields; preliminary results of in-field distribution studies and field cage studies to measure impact to soybean; limited results of insecticide effectiveness studies; and preliminary management recommendations. By the end of this presentation, the practitioner should know more about BMSB's current distribution in U.S. soybean, how to identify soybean injury symptoms, preliminary field scouting procedures, and preliminary control recommendations. Tue, 26 Jul 2011 15:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/BMSB/ http://www.plantmanagementnetwork.org/edcenter/seminars/BMSB/ Mark Bernards, Ph.D. Yellow flash is the temporary chlorosis of newly emerging soybean leaves that sometimes occurs following the application of glyphosate to glyphosate-resistant soybean cultivars. Yellow flash is most likely to occur when environmental conditions are warm and moist, favoring rapid soybean growth, and/or when high rates of glyphosate are applied. This temporary chlorosis results from a reduction in chlorophyll content in the affected leaves. Yellow flash has not been shown to affect soybean yield. This presentation will discuss the most likely mechanism by which yellow flash occurs, and discusses the relationship of glyphosate and manganese in soybean growth and yield. Mon, 25 Apr 2011 14:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/YellowFlash/ http://www.plantmanagementnetwork.org/edcenter/seminars/YellowFlash/ Bill Johnson, Ph.D. Volunteer corn has emerged as one of the most common weeds in Midwest soybean production. It's reemergence as a problematic weed is directly related to rapid adoption of glyphosate-resistant corn and sole use of glyphosate in soybean on soybean for weed control. Volunteer corn can reduce soybean yields up to 40% with densities of 16 plants per square meter. In addition, much of the volunteer corn in the eastern corn belt region of the U.S. also carries a Bt trait for insect protection, since the hybrid corn from which it came from was likely to have Bt traits stacked with herbicide resistance traits. Management considerations for volunteer corn in soybean stem from it's competitive effect on soybean yield, but also minimizing exposure of insect pests to Bt insect protection traits to slow development of Bt resistant insects. This presentation will discuss the competitive effects of volunteer corn in soybean, emergence of western corn rootworm beetles from volunteer corn plants, and control options for soybean producers. Tue, 29 Mar 2011 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/VolunteerCorn/ http://www.plantmanagementnetwork.org/edcenter/seminars/VolunteerCorn/ Shaun Casteel, Ph.D. TThe presentation focuses on data from Midwestern states, but the principles for comparing the technologies is appropriate for growers, consultants, and other crop professionals in all states. The first generation of Roundup Ready (RR1) soybeans were released in 1996 and the second generation (RR2) was released in 2009. The yields of RR2 are said to be 7 to 11% higher than RR1 with mixed findings in the field. This presentation aims to level the playing field for appropriate comparisons between RR1 and RR2 varieties. The effects of geography, maturity group, and seed treatments are discussed for improved decisions in variety selection. Tue, 22 Feb 2011 16:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/RR1vRR2/ http://www.plantmanagementnetwork.org/edcenter/seminars/RR1vRR2/ Bill Wiebold, Ph.D. This presentation will help consultants, growers, and other practitioners in all regions of the United States. Although examples and data are from the north-central region of the US, concepts can be applied wherever soybean is grown. Part one of the two-part series discusses soybean yield and how factors during the plant's life cycle influence yield. Part two builds on information presented in part one and describes six keys to increasing soybean yield. By the end of the presentation, practitioners will better understand how soybean plants produce yield and will be able to use that understanding to develop cropping systems that enhance profitable soybean production. Tue, 22 Feb 2011 16:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/100BushelClub/ http://www.plantmanagementnetwork.org/edcenter/seminars/100BushelClub/ Trey Koger, Ph.D. This presentation will help consultants, growers, and other practitioners in the mid-South with current production practices and techniques for irrigating soybeans. The presentation will also cover innovative research being conducted on new and more efficient techniques for irrigating soybeans with the end goal of increasing yield while maintaining or reducing current water usage. Finally, the presentation will discuss techniques and practices used for determining when to irrigate soybeans in the mid-South. Mon, 31 Jan 2011 12:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/IrrigationManagement/ http://www.plantmanagementnetwork.org/edcenter/seminars/IrrigationManagement/ Robert Mullen, Ph.D. Adequate potassium nutrition for soybean is critical to promote maximum agronomic productivity. Most land-grant universities provide potassium recommendations for soybeans, but some consultants, policymakers, and producers may not be aware of how those recommendations are determined. The goal of this presentation is to provide some background on how potassium behaves in the soil, how soybean plants take up potassium, what potassium does in the plant, and how universities determine potassium recommendations. Mon, 31 Jan 2011 12:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/PotassiumFertility/ http://www.plantmanagementnetwork.org/edcenter/seminars/PotassiumFertility/ Jim Dunphy, Ph.D. This presentation will help consultants, growers, and other practitioners in North Carolina and nearby states understand the logic behind North Carolina's soybean population suggestions for Roundup-Ready soybeans. The numerous replicated population tests that the state's growers have funded over the past nine years will be reviewed. Understanding why these suggestions are what they are should better enable growers and their advisors to tailor planting recommendations to their own situations and tolerance to risk of inadequate stands. Mon, 21 Oct 2010 18:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/RRSoybeanPopulationsInNorthCarolina/ http://www.plantmanagementnetwork.org/edcenter/seminars/RRSoybeanPopulationsInNorthCarolina/ Terry Niblack, Ph.D. This is a series of three presentations designed to aid agricultural professionals in any soybean-production region of the world in understanding variability among soybean cyst nematode populations (SCN) and among SCN-resistant soybean varieties. The first presentation, "Measuring Resistance," explains and illustrates the use of the Female Index for identifying and classifying soybean resistance to SCN in greenhouse tests. After viewing this presentation, you will know how SCN-resistance is measured and categorized. The second presentation, "SCN Types for Farmers," explains and illustrates how we test SCN populations for their ability to overcome soybean resistance, and how to use SCN Type Test results to manage SCN. After viewing this presentation, you will know what an SCN Type is and when you should have an SCN Type Test. The last presentation, "Races No More," is intended for those who are interested in a more in-depth explanation of the relationships among SCN races, HG Types, and SCN Types. After viewing this presentation, you will understand the close similarity among all three measurements of SCN variability. Mon, 27 Sep 2010 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SCNNiblack/ http://www.plantmanagementnetwork.org/edcenter/seminars/SCNNiblack/ John Hill, Ph.D. This presentation will help consultants, growers, and other practitioners in the North Central Region. It is designed to familiarize viewers with the disease caused by Bean pod mottle virus of soybeans. Initially, the presentation focuses on the causal agent of the disease, and then discusses the potential sources of the virus that result in disease. These factors include the association of virus with seed, the transmission of the virus by insects, and potential for weeds acting as reservoirs for the virus. Finally, accurate diagnosis of the disease caused by the virus is emphasized and options for disease management are discussed. Emphasis is on control of the insect that transmits the disease and field tolerance to the virus. Tue, 30 Aug 2010 12:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/bpmv/ http://www.plantmanagementnetwork.org/edcenter/seminars/bpmv/ Matt Helmers, Ph.D. This presentation will help consultants, growers, and other practitioners in the Midwest region increase their understanding of subsurface drainage and factors to consider when planning or evaluating the need for a subsurface drainage system. Specifically, the impacts of drainage on water movement, crop production, and nitrate-nitrogen loss will be described. In addition, factors to consider related to drain spacing and sizing will be described. Tue, 27 July 2010 12:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/ImpactsOfSubsurfaceDrainage/ http://www.plantmanagementnetwork.org/edcenter/seminars/ImpactsOfSubsurfaceDrainage/ Trey Koger, Ph.D. This presentation will help consultants, growers, and other practitioners in the mid-South region to improve soybean productivity and profitability through the use of bedding systems in soybean production. The use of raised bedding systems helps to increase and improve the consistency of soybean yields, especially in wet years. Because the topography of the Delta region is predominately flat, drainage is critical. Bedding systems help to provide improved surface drainage and facilitate furrow irrigation. Together, these practices are helping mid-South soybean growers produce more profitable and sustainable soybean crops. Tue, 27 July 2010 12:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/BenefitsandUtilityofBeddingSystems/ http://www.plantmanagementnetwork.org/edcenter/seminars/BenefitsandUtilityofBeddingSystems/ Kelley Tilmon, Ph.D. The purpose of this presentation is to help you manage soybean aphid cost-effectively through scouting and the use of treatment thresholds. It begins with some basic information about soybean aphid biology, reviews why scouting and thresholds are important, and then gives guidelines on when and how to scout for aphids. A few additional tools to complement your soybean aphid scouting program are also highlighted. Wed, 14 July 2010 12:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanAphidScouting/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanAphidScouting/ Trey Koger, Ph.D. This presentation will help consultants, growers, and other practitioners in the mid-south and mid-west U.S. to better understand how to determine various vegetative and reproductive growth stages of indeterminate and determinate soybean. Information within this presentation illustrates why it is important to be able to determine soybean growth stages from one field to the next, as many in-season decisions with respect to pest management inputs are based on the presence, pressure, and/or thresholds of a specific or combination of pests at specific soybean growth stages throughout the growing season. Having a good understanding of soybean growth stages will aid in the process of making decisions on key production inputs such as pest management, irrigation timing and termination, and to estimate expected soybean maturity and anticipated timing of harvest. Thu, 24 May 2010 15:15:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanGrowthStages/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanGrowthStages/ Paul Esker, Ph.D. This presentation will help growers, consultants, and other practitioners in the North-Central U.S. improve their understanding of the risk factors associated with Sclerotina stem rot of soybean, a disease that can dramatically reduce yield in favorable years. Specifically, this talk will focus on the biology of the pathogen (Sclerotinia sclerotiorum), symptoms and signs, and risk factors associated with occurrence and disease development. Finally, management of Sclerotinia stem rot will be discussed with particular emphasis on resistance, and chemical and biological control. Thu, 29 Apr 2010 10:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SclerotiniaStemRotofSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/SclerotiniaStemRotofSoybean/ Erin Hodgson, Ph.D. This presentation will help consultants, growers, and other practitioners in the North Central region. The first presentation, titled Bean Leaf Beetle Biology, will be a brief review of the biology and life cycle of bean leaf beetle. It will also cover the damage potential of bean leaf beetle and bean pod mottle virus. The second presentation, titled Bean Leaf Beetle Management in Soybean, will focus on the proper sampling of bean leaf beetle, common IPM tactics and the proper use of economic thresholds to minimize yield loss in soybean. By the end of these presentations, the practitioner should be able to correctly identify and estimate field densities of bean leaf beetle. In addition, the viewer will understand the potential economic importance of this insect and make profitable management decisions. Mon, 30 Mar 2010 15:30:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/BeanLeafBeetle/ http://www.plantmanagementnetwork.org/edcenter/seminars/BeanLeafBeetle/ David L. Wright, Ph.D. This presentation will help consultants, growers and others in the agricultural industry of the South consider management techniques that need to be considered when double cropping soybeans. Management from planting to harvest will be discussed. Major topics covered are fertility, rotations, cover crop management, variety selection, row spacing and seeding rate, water needs, planting method and date, pest control and harvest considerations. This presentation will help growers consider every aspect of production and bring to mind some challenges that may be faced by growers during the growing season in the South. Mon, 22 Mar 2010 11:45:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/DoubleCroppedSoybeansintheSouth/ http://www.plantmanagementnetwork.org/edcenter/seminars/DoubleCroppedSoybeansintheSouth/ Chris Boerboom, Ph.D. This presentation will help consultants, growers, and other practitioners in the Midwest region in particular and interested agriculturalists across the country increase their knowledge about glyphosate-resistant weeds. The first presentation serves as a introduction to the issue of glyphosate-resistant weeds and highlights several important facts about the current status of resistance and challenges that will be faced by growers with resistance. The second presentation provides management considerations to either prevent glyphosate resistance or to control glyphosate-resistant weeds if they have developed in a field. Glyphosate and glyphosate-resistant crops are valuable tools for soybean growers and proactive stewardship should help sustain the utility of this technology into the future. Tue, 02 Mar 2010 8:30:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Glyphosate/ http://www.plantmanagementnetwork.org/edcenter/seminars/Glyphosate/ Palle Pedersen, Ph.D. This presentation will help consultants, growers, and other practitioners in the U.S. on the basic mechanisms to maximize soybean yield. Examples will be given from Iowa that can be used for most states in the upper Midwest. In the presentation, basic soybean growth and development will be presented, and then this topic will be linked to management decisions. By the end of this presentation, the practitioner should know more about what it takes to maximize soybean yield, that it is all about agronomics and variety selection, and that yield is made much earlier in the growing season that most people think. Wed, 03 Feb 2010 10:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/HowToMaximizeSoybeanYield/ http://www.plantmanagementnetwork.org/edcenter/seminars/HowToMaximizeSoybeanYield/ John Mueller, Ph.D., et al. This presentation will help consultants, growers, and other practitioners in the Southern U.S. scout and manage the major nematode species on soybeans and other row crops. Nematode problems are widespread in the Southern United States and annually cause 5-10% yield losses for the total crop. In these four presentations we will cover: the biology and life cycle of SCN; symptoms caused by nematodes, how to use sample a field and how to interpret your results using damage thresholds; using resistant cultivars and crop rotations; and using combinations of nematicides and resistant cultivars. By the end of this presentation, the practitioner should know more about the life lifecycle of Southern root-knot, reniform, soybean cyst and Columbia lance nematodes and be able to design an appropriate scouting and management program. Wed, 03 Feb 2010 10:05:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/PrinciplesofNematodeManagementintheSouthernUS/ http://www.plantmanagementnetwork.org/edcenter/seminars/PrinciplesofNematodeManagementintheSouthernUS/ Trey Koger, Ph.D. This presentation will help consultants, growers, and other practitioners in the mid-South region to improve soybean productivity and profitability through the use of bedding systems in soybean production. The use of raised bedding systems helps to increase and improve the consistency of soybean yields, especially in wet years. Because the topography of the Delta region is predominately flat, drainage is critical. Bedding systems help to provide improved surface drainage and facilitate furrow irrigation. Together, these practices are helping mid-South soybean growers produce more profitable and sustainable soybean crops. Tue, 30 Dec 2009 10:43:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/BenefitsandUtilityofBeddingSystems/ http://www.plantmanagementnetwork.org/edcenter/seminars/BenefitsandUtilityofBeddingSystems/ David L. Holshouser, Ph.D. Variety selection is one of the most important decisions a soybean producer makes and should be based on results of properly conducted variety trials. Types of variety trials in order of poor to good precision include split-field comparisons, un-replicated strip plots conducted over time and/or space, replicated head-to-head comparisons, and multi-location university-conducted official variety tests (OVT). All are useful and each has its own advantages in selecting high-yielding varieties. Never to use single-location, single-year data in a variety selection process; instead, use multi-location multi-year averages. Making selections based on that criteria will normally result in choosing high-yielding varieties the following year, regardless of where the variety is grown. Tue, 08 Sep 2009 12:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/TipsForProfitableSoybeanVarietySelection/ http://www.plantmanagementnetwork.org/edcenter/seminars/TipsForProfitableSoybeanVarietySelection/ Shawn Conley, Ph.D. In this presentation, we will discuss current grower production and grain marketing practices. Through this presentation, we hope to identify key areas where improvements can be made to increase the economic sustainability of soybean producers. Fri, 24 Jul 2009 3:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/GrowerProductionPractices/ http://www.plantmanagementnetwork.org/edcenter/seminars/GrowerProductionPractices/ Daniel Kaiser, Ph.D. This Soybean Fertility module consists of two presentations. The Nutrient Uptake and Utilization presentation covers three areas of focus related to nutrient management. The first area of focus discusses the nutrients important for soybean production. The second answers the question, how does pH influence nutrient management decisions? And the third area of focus deals with the differences between macronutrients and micronutrients. The Fertilizer Application for Soybean presentation covers the principles of the various fertilizer application methods (broadcast, banded, and foliar) and helps the viewer decide which method is the best for the particular field and soybean crop at hand. Wed, 3 Jun 2009 12:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanFertility/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanFertility/ Ray Schneider, Ph.D. Foliar diseases of soybean can be devastating in the South, especially in the Gulf South, where humidity remains high during the day and occasional tropical storms provide ideal conditions for disease development and spread. Diseases that rarely occur elsewhere in the U.S. may limit soybean productivity in this region. Furthermore, we cannot make broad generalizations about which diseases may be more or less severe in the South. A case in point is Cercospora leaf blight, which was a curiosity no more than 10 years ago but is now one of the most devastating and recalcitrant diseases in Louisiana. Asian soybean rust (ASR) is another notorious example. This disease, first discovered in Louisiana in November 2004, has the potential to cause substantial economic losses to the nationwide soybean industry, but Gulf Coast states are afflicted with this malady on a yearly basis. While producers in this region have learned to manage ASR and now view it as just another late season disease, there is a substantial cost associated with preventative fungicide applications, and this cost must be considered when calculating economic losses attributable to ASR. As described in this presentation, there is still much to be learned about these and other foliar diseases with regard to disease management. The purpose of this presentation is to provide a broad overview of the most prevalent foliar diseases in the South, including symptoms and diagnosis. The viewer is encouraged to seek advice from local consultants and extension professionals for literature, diagnoses, and specific disease management recommendations. Thu, 23 Apr 2009 11:30:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/FoliarDiseasesOfSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/FoliarDiseasesOfSoybean/ Bill Johnson, Ph.D. The objective of this presentation is to discuss Indiana grower perceptions about their most problematic weeds, glyphosate resistant weeds, and management tactics for problematic weeds. It will also provide some insight on the influence of farm size on grower perceptions of the importance of glyphosate resistance and their willingness to adopt various management strategies to manage glyphosate resistant weeds. Thu, 23 Apr 2009 11:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/GlyphosateResistantWeedsAndResistanceMgtStrategies/ http://www.plantmanagementnetwork.org/edcenter/seminars/GlyphosateResistantWeedsAndResistanceMgtStrategies/ Dean Malvick, Ph.D. Brown stem rot (BSR) is a significant disease of soybean in the Northcentral U.S. BSR is caused by a soilborne fungal pathogen. Infection occurs early in the season but symptoms typically don't develop until pod-fill stages later in the season. Brown discoloration of the stem pith and chlorosis and necrosis between leaf veins are symptoms of BSR, although the leaf symptoms do not always develop. BSR is managed with crop rotation and by using soybean varieties with resistance to BSR. Wed, 18 Mar 2009 15:30:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/BrownStemRotofSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/BrownStemRotofSoybean/ Doug Jardine, Ph.D. This presentation deals with charcoal rot of soybeans. Charcoal rot is the third most serious disease of soybeans in the United States. Emphasis in the presentation is on both symptom diagnosis and practical cultural management practices. Tue, 11 Nov 2008 17:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/CharcoalRotofSoybeans/ http://www.plantmanagementnetwork.org/edcenter/seminars/CharcoalRotofSoybeans/ Anne E. Dorrance, Ph.D. Phytophthora sojae is re-emerging as a key soybean pathogen in much of the US. This presentation will discuss why this is happening, explain how the different types of resistance work, and other disease management strategies that can be implemented to reduce yield losses. Producers and consultants can use this information first to learn the symptoms of this disease and then how to choose the right resistance package for those fields with Phytophthora sojae pressure. Tue, 28 Oct 2008 18:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/Phytophthora/ http://www.plantmanagementnetwork.org/edcenter/seminars/Phytophthora/ Gary P. Munkvold, Ph.D. Like most crops, soybeans are vulnerable to diseases caused by seedborne pathogens. These diseases can cause significant yield loss, reduce seed quality, and/or create obstacles to seed export because of phytosanitary concerns. Many microorganisms can be seedborne, but relatively few of them have a consistent economic impact. In this presentation, we will discuss how microorganisms can have different types of associations with seeds and which ones are important in soybeans. The presentation also briefly covers the methods used to detect some of the seedborne pathogens in soybean and a few management tips. Mon, 16 Sep 2008 14:15:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SeedbornePathogensOfSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/SeedbornePathogensOfSoybean/ Paul D. Esker, Ph.D. The use of foliar fungicides in field crop production, including soybean, has recently been on the increase. The increased interest in foliar fungicides is in part due to the discovery of Asian soybean rust in the U.S. in 2004. As a relatively new tool for soybean growers in the northern soybean production areas, the focus of this presentation will be increasing understanding of what is a fungicide, the role of integrated pest management in the fungicide decision process, the different types of modes of action that are currently available, the role of resistance management, application methods for foliar fungicides, and a discussion of some of the current results from different trials in the North Central region. To date, results from foliar fungicide trials have been variable and research is currently being conducted to determine under which situations the application of a foliar fungicide will be most effective. Mon, 14 Jul 2008 01:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/FoliarFungicides_North/ http://www.plantmanagementnetwork.org/edcenter/seminars/FoliarFungicides_North/ Richard C. Derksen, Ph.D. Asian Soybean Rust is a potential threat to soybean production in the United States. As demonstrated in other countries, inadequate protection against this foliar disease can significantly reduce yields. Asian Soybean Rust isn't the threat to young plants in the U.S. as it is in some countries but it could potentially infect taller, more mature canopies that are signficant challenges to treat with fungicides. To help establish guidelines on how to treat the lower portion of mature soybean canopies, field studies were established to characterize spray deposits and coverage produced by several different application techniques. These studies did not include efficacy evaluations but they have demonstrated which techniques could offer the best chance for protecting lower areas of mature soybean canopies. Mon, 7 Jul 2008 02:24:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/ApplicationTechnology/ http://www.plantmanagementnetwork.org/edcenter/seminars/ApplicationTechnology/ David W. Ragsdale, Ph.D. These presentations focus on two key areas of interest. The first presentation covers the biological aspects of the soybean aphid, including reproduction, feeding habits, and its effects on soybean yield. The second presentation, "Soybean Aphid: Economic Threshold and Economic Injury Level" discusses the points at which soybean aphid population densities go from benign to costly. Wed, 25 Jun 2008 04:15:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanAphid/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanAphid/ Bill Johnson, Ph.D. This series consists of two presentations. The first, Weed Competition in Soybean, focuses on the concept of weed emergence dates and the duration of weed interference in soybean and their effects on soybean yield. The Weed Management Strategies in Soybean presentation will focus on two common weed management strategies in soybean and the advantages and disadvantages of each strategy. It will also provide some insight on the value of soil-applied residual herbicides to for reducing variability of weed control and crop yields in soybean production. Fri, 2 May 2008 04:15:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/WeedManagementInSoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/WeedManagementInSoybean/ David Wright, Ph.D. The soybean checkoff is a producer-funded federal initiative under the direction of the U.S. Department of Agriculture. In 2007, the national checkoff totaled more than $105 million. This presentation shows how soybean producers, through their soybean checkoff, are helping shape the future of the soybean industry. Soybean producers are helping revolutionize the industry by helping plant breeders develop soybeans that produce a more heart healthy oil for human consumption. These soybeans may one day be our World's commodity soybean improving human health world-wide. Scientists and plant breeders are diligently working to improve soybean agronomics. Soybean producers have also funded considerable work in genomics that has resulted in a robust physical map. In just the last decade soybean producers have helped discover Rps8, a new gene to protect soybean plants from Phytophthora, several new genes to manage the soybean cyst nematode, genes for resistance to Asian soybean rust, white mold, and brown stem rot. That's your soybean checkoff. Delivering results. Thu, 17 Apr 2008 4:30:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanCheckoff/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanCheckoff/ Carl Bradley, Ph.D. Fungicide seed treatments are tools that can be used to help ensure a uniform soybean stand. Fungicide seed treatments can improve seed germination and seedling emergence of poor-quality seeds due to fungal infection, in some cases. In addition, fungicide seed treatments can provide protection against seedling diseases caused by Fusarium, Phytophthora, Pythium, and Rhizoctonia. Benefits from fungicide seed treatments will not be observed in every field and every year, and benefits often depend on the environment. If cool and wet conditions occur after planting, benefits are more likely to be observed. When planting early or into fields with a history of seedling establishment problems, fungicide seed treatments may provide a benefit. Fungicide seed treatments can be considered as 'insurance' to help ensure uniform stands, and may pay off in the long run. Thu, 17 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/fungicideseedtreatmentsforsoybean/ http://www.plantmanagementnetwork.org/edcenter/seminars/fungicideseedtreatmentsforsoybean/ Don Hershman, Ph.D. The Integrated Pest Management - Pest Information Platform for Extension and Education (ipmPIPE) was first conceptualized by USDA-APHIS during outbreaks of soybean aphid in the North Central U.S. during 2000-02. However, the ipmPIPE was not implemented until early 2005 when monitoring for soybean rust in North America became a priority. The ipmPIPE currently has three component parts: 1) Soybean aphid-PIPE, 2) Soybean rust-PIPE and 3) Legume-PIPE. The ipmPIPE now involves monitoring and reporting pests of soybean and various legume crops in 41 states, five Canadian provinces, and Mexico. Although information technology support for the ipmPIPE is state-of-the-art, the technology would fail without critical input from a host of support groups and individuals, especially Extension specialists and other scientists at Land Grant institutions, county Extension educators, crop consultants and producers. The ipmPIPE follows a traditional IPM template: 1) collect information, 2) analyze information, 3) make recommendations, 4) keep records, and 5) evaluation. Advances of the ipmPIPE over the existing IPM template include easy stakeholder access to national pest incidence and distribution data, disease forecasting, and state-specific control recommendations, through a public website, on a near-real time basis. The ipmPIPE has greatly enhanced communication among scientists and has facilitated the use of IPM in soybean. The ipmPIPE is very flexible and is amenable to other crop-pest combinations. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/ipmPIPE/ http://www.plantmanagementnetwork.org/edcenter/seminars/ipmPIPE/ Palle Pedersen, Ph.D. Today, hundreds of different soybean varieties are available to the growers. Most of them differ in maturity group, herbicide tolerance, yield potential, and then disease resistance. Some varieties are particularly well suited to meet specialty markets because of their chemical or physical composition. Specialty soybean tends to be consumed as food or processed to make foods. Specialty soybeans fall into many categories and are usually produced under a contract. Previously most specialty soybeans were the non-GMO type of soybeans or organic soybeans. Today, this has changed because of a strong demand for oils such as low linolenic. This presentation will cover the basics of specialty soybeans: the most common types planted, the and pros and cons of each, and the management of them. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SpecialtySoybeans/ http://www.plantmanagementnetwork.org/edcenter/seminars/SpecialtySoybeans/ Loren Giesler, Ph.D. There are two parts to this soybean viruses presentation. The first part, titled Soybean Viruses: Biology and Symptoms will cover the most common soybean viruses with an emphasis placed on identification of each disease. An overview and introduction to viral diseases will be presented. Information on how each virus is transmitted will also be discussed. The second part, titled Soybean Viruses: Management Overview will focus on management options for soybean viral diseases. Management options will be discussed in general terms which focus on ways to avoid or reduce vector populations. Genetic resistance to viral disease will also be discussed. The source of virus will also be discussed in terms of how to reduce potential introductions. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanViruses/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanViruses/ Shawn Conley, Ph.D. The objective of this presentation on soybean production is to provide up-to-date crop management information and recommendations for U.S. soybean growers and agricultural professionals. In this series of modules, we discuss soybean variety selection, row spacing trends, changes in seeding rate and planting dates, and lastly re-plant decisions. These presentations are designed to provide recommendations that cover a wide range of environmental and geographic conditions. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanProduction/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanProduction/ Bob Kemerait, Ph.D. Asian soybean rust was first detected in the continental United States in November of 2004. Since that time, the disease has been found in a number of states where soybeans are produced, but has caused the most significant damage in states in the Southeast. In this presentation, Dr. Bob Kemerait addresses the reality of Asian soybean rust (biology, spread, detection, monitoring, management, and fungicde efficacy) as it relates to the experience of soybean producers in Georgia. The lessons learned through trial, error, and observation in a state like Georgia should serve as a good introduction for other states for the 'reality' of Asian soybean rust. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanRust/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanRust/ John Rupe, Ph.D. Sudden Death Syndrome is an important soil-borne disease of soybean that threatens high-yield environments in North and South America. This presentation covers background, identification, and other important information related to SDS. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SuddenDeathSyndrome/ http://www.plantmanagementnetwork.org/edcenter/seminars/SuddenDeathSyndrome/ Gregory Tylka, Ph.D. The soybean cyst nematode (SCN) is a very widespread and damaging pest of soybeans in North America. And although SCN is widely known as a serious yield-reducing pest, many fields infested with the nematode go undiagnosed. SCN can drastically reduce soybean yields if not detected when population densities are low. In this presentation, the biology and life cycle of SCN are described. The various symptoms caused by SCN are explained and illustrated, and specific scouting guidelines are presented. Finally, various SCN management options are discussed. This presentation can be viewed in three parts. Part one offers an introduction to the soybean cyst nematode and its biology. Part two covers SCN scouting. And part three discusses management of the soybean cyst nematode. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SCN/ http://www.plantmanagementnetwork.org/edcenter/seminars/SCN/ Craig Grau, Ph.D. Sclerotinia stem rot is a yield-limiting disease of soybean, especially in the Upper Midwest Region of the USA, and Eastern Canada. This presentation covers characteristics of Sclerotinia sclerotiorum, the cause of Sclerotinia stem rot, that are relevant to understanding the management of this disease. Sclerotinia stem rot is a disease of high yield potential soybeans. Most management practices intended to increase yield potential also increase the risk of yield loss associated with Sclerotinia stem rot. Management of Sclerotinia stem rot requires a coordination of soybean variety selection and adjustment to agronomic practices. Fri, 11 Apr 2008 00:00:00 CST http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanWhiteMold/ http://www.plantmanagementnetwork.org/edcenter/seminars/SoybeanWhiteMold/