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on Cotton

Landscape Influences on
Lygus Bugs in Western Cotton

August 2013

By Peter C. Ellsworth, Ph.D.
Specialist/Professor, IPM
Department of Entomology &
Arizona Pest Management Center
University of Arizona

Watch Presentation (37 min 09 sec)

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Summary: This presentation will help growers, pest managers and others understand how new research is helping us address fundamental aspects of cultural control, such as crop placement within the farm-scape, to lower risks of Lygus infestation in cotton. This presentation focuses on the burgeoning area of landscape ecology as it relates to management of Lygus bugs in cotton using Western examples. Growers will learn how selection and arrangement of crop and non-crop resources within a farming community can become part of their IPM plan. This is intended as an introduction to the concepts that support management on spatial scales at or above the level of an individual farm. Specifically in this presentation, farmers and pest managers will learn: when and over what distances crops might serve as sources of Lygus to cotton; when and over what distances crops might serve as “sinks” for Lygus, providing protective value for cotton; how choosing and arranging crops within an individual farm can help lower risks of Lygus infestations and how these concepts of spatial ecology can be extended to other pest management challenges like resistance to pesticides, refugia management, and even recruitment of beneficials to farmer’s fields in the future. By the end of this presentation, the grower and pest manager should have an appreciation for how landscape elements might be eco-engineered to support their pest management plans.

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