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Issue 196: May 30, 2019
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"First Report of Erysiphe fallax Causing Powdery Mildew on Phasey Bean (Macroptilium lathyroides) in the United States." Because phasey bean is an invasive weed and present year-round, its potential to carry and spread E. fallax poses a threat to economically important crops, such as papaya. 
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In "Effects of Anaerobic Soil Disinfestation on Sclerotinia sclerotiorum in Paraguay," a significant negative correlation was reported between soil reducing conditions and sclerotia viability at all four test sites. These results offer smallholder vegetable farmers new options for sustainable management of Sclerotinia and other pathogens. 
"Eight Species of Fusarium Cause Root Rot of Corn (Zea mays) in South Dakota" is the first article to identify species of Fusarium that are aggressive root rot pathogens of corn in South Dakota. This information will help producers evaluate management strategies.
PHP Research

PeerReviewed.gifSubmit Your Paper to Plant Health Progress
Plant Health Progress (PHP), a science-based outreach journal, is seeking high-quality manuscripts. This journal is available on the Plant Management Network website and also on the American Phytopathological Society's publication website. Share your knowledge with plant health practitioners worldwide by submitting a manuscript today.
Be included in the first Plant Health Progress focus issue, "Plant Disease and Vector Research in a Changing World." Potential topics include:
  • How climate change will affect future virus epidemics
  • How environmental variables interact with plant and vector populations
  • Effects of changing environment on acquisition efficiency and latency
Learn more about publishing in this exciting inaugural focus issue. 
Focus on Soybean
Balkcom_PMNUpdate194.jpgIn "Seed Burial and Persistence of Palmer amaranth and Waterhemp," Jason Norsworthy discusses the persistence of both weeds when their seeds are lying on the soil surface compared with a 6-inch burial. He also examines tillage management strategies and makes recommendations based on current level of infestation in fields. 
Schedule Your Webcast Recording
PMN is scheduling grant outreach webcast recordings throughout 2019. To get your webcast on the production calendar, send an email to
The APS Image Database has approximately 600 corn images and 600 soybean images of diseases, disorders, and pests, plus distribution maps of the major diseases affecting U.S. and Canadian crops. All database images are peer-reviewed and useful for teaching, training, and diagnostics. 

For a limited time, APS is offering a discount on database subscriptions. Individual subscribers can save $10 and institutional subscribers can save $50 when they sign up for a year subscription. 

Offer ends June 30, 2019. 


Saturated Soils and Yellowing Soybeans - Illinois Soybean Association
Insect Pests / Entomology
Plant Disease
Plant Disease and Vector Research in a Changing World - The American Phytopathological Society
Weed Management
New Mycology Title from APS PRESS
Now available for preorder, Fungicide Resistance in North America, Second Edition, provides coverage of all the new major fungicide groups and is the only current book on fungicide resistance that focuses on North American crops. Save 10% if you preorder today—expected to deliver in July 2019.

APS PRESS is offering a 10% savings on all mycology-related titles (members save an additional 10%). Use promo code FUNGUS to save up to 10% on all books in the mycology category. Offer runs from June 5–28.
Follow PMN on Twitter 
For announcements and up-to-date notifications about PHP journal articles, webcasts, and PMN Crop News, follow  @Crop_Protection on Twitter.
Subscribe to the Plant Management Network
PMN offers quality, science-based information that’s read by thousands of applied researchers and practitioners each year. Access efficacy trials, research articles, images, and more for just $40–$50 a year through the Plant Management Network. Learn more and subscribe today
The American Phytopathological Society © 2019