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Donald C. Weber

Research Entomologist

 

 

Donald C. Weber

Don.Weber@ars.usda.gov

Research Entomologist &

Lead Scientist

 

Invasive Insect Biocontrol &

Behavior Laboratory

link to publications

 

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Summary of Research:

My research focus is insect ecology with a commitment to improvement of pest management.  My lab’s research program focuses on leaf beetles which are agricultural pests, such as corn rootworms, cucumber beetles, and Colorado potato beetle. 

 

This effort involves the evaluation of environmentally-friendly tactics such as native biological controls and changes in tillage and cover cropping to suppress key pests such as Colorado potato beetle.

 

Our lab group includes Michael Athanas (Entomologist) and Meiling Webb (Entomologist). Zsofia Szendrei (former Postdoctoral Research Associate) is now Assistant Professor at Michigan State University Department of Entomology (see her Vegetable Entomology webpage).

 

Colorado potato beetle is the most important insect defoliator of potatoes in North America and Europe, and also an important pest of tomato and eggplant crops. None of the control techniques developed against this pest during the past 135 years has provided long-term protection of potato crops, and the beetle continues to be a major threat, evolving pesticide resistance repeatedly. Read more about it here.

Surprisingly little is known about native natural enemies of this key pest, and part of our project is directed to answering questions about their biology, impact on the pest, and potential role in conventional, alternative and organic crop systems.  Click on each picture for more information on different species of natural enemies!

Predation of insect pests can happen any time of day or night!  Read about nocturnal predation research in October 2009 Agricultural Research magazine.

Coleomegilla maculata a native generalist ladybird predator

Lebia grandis adult and larvae

Leptinotarsa juncta larvae and adult

Use of cover crops along with crop rotation may form the foundation of sustainable approaches to managing Colorado potato beetle and other potato pests. We are documenting how much, and by what mechanisms, different cropping systems suppress beetle numbers and damage, with the aim of improving potato pest management.

Potatoes planted into rye cover crop with rye straw mulch

Potato plantings in mixed cover crops

Critical to these investigations is the understanding of behavior and ecology of both the pests and their natural enemy complex.

link to publications

Recent Publications and Presentations 


     
Last Modified: 01/26/2010
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