Illinois: Assessing Corn Rootworm Damage – Now is the Time Aug 19, 2020

🕔Aug 19, 2020
Corn rootworm activity, in general, appears higher in much of Illinois than it has been for the last several years. Along with higher activity, resistance to Bt traits in western […]

Indiana Corn: Scout Pollen Heavy Areas for Rootworm Beetles Jul 31, 2020

🕔Jul 31, 2020
Much of the corn has pollinated throughout the state, but there are the late-planted fields that have yet to do so. Those are the fields that potentially act as a […]

Nebraska Corn: Scout for Rootworm Beetles to Assess Risk of Future Damage Jul 20, 2020

🕔Jul 20, 2020
Western corn rootworm beetles began emerging in late June-early July in southeastern and south central Nebraska. Beetle emergence will be somewhat later in northeastern and western Nebraska. These beetles can […]

Iowa: Corn Rootworm Egg Hatch Getting a Late Start Jun 12, 2020

🕔Jun 12, 2020
Corn rootworm egg hatch in Iowa occurs from late May to the middle of June, with an average peak hatching date of June 6 in central Iowa. In 2020, the […]

Iowa: New Trapping Network for Corn Rootworm May 26, 2020

🕔May 26, 2020
Western and northern corn rootworms are serious corn pests in Iowa and the Corn Belt, reportedly responsible for over 1 billion dollars in yield loss and control costs annually in […]

Illinois: Managing Corn Rootworm – Outlook for 2020 Mar 16, 2020

🕔Mar 16, 2020
Corn rootworm remains the greatest insect pest threat to corn in Illinois, despite low populations in recent years compared with historical averages. Resistance to Bt traits and crop rotation throughout […]

Texas Corn: Sorting Through Rootworm Beetle Bt Efficacy Differences Sep 2, 2019

🕔Sep 2, 2019
Last year we had huge numbers of corn rootworm beetles in corn around Hart in early July, and I wrote at the time that they were “probably resistant” to the mCry3a rootworm […]

Chlorpyrifos: EPA Decision Appealed by Environmental Groups – DTN Aug 9, 2019

🕔Aug 9, 2019
EPA decided in July not to ban the insecticide chlorpyrifos, and now, environmental groups have petitioned the U.S. Court of Appeals for the Ninth Circuit in Seattle to review that […]

Corn: Syngenta’s Agrisure Duracade Trait OK’d for EU Import Jul 29, 2019

🕔Jul 29, 2019
Syngenta has received import approval for the Agrisure Duracade  trait from the European Commission. The trait features a unique mode of action that controls corn rootworm (CRW) differently than other traits […]

Iowa Corn: Assessing Rootworm Activity Using Sticky Traps Jul 26, 2019

🕔Jul 26, 2019
Western and northern corn rootworm are major corn pests in Iowa and surrounding states (Photos 1 and 2). Farmers have seen several management changes, including the release of four Bt-rootworm […]

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