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Weeds Are Winning the War against Herbicide Resistance

June 29, 2018

"There is a “considerable chance,” the authors write, “that the evolution of pest resistance will outpace human innovation.” Addressing the situation requires a collective effort between funding agencies, regulators, farmers and others, the authors add in the review, published in Science.

2018 Labor Day Palmer amaranth tour

September 4, 2018

Palmer amaranth has the potential to become a weed pest that threatens farm productivity and profit. Weed Scientist Bob Hartzler visits three places in Iowa where Palmer has been found. Harrison County and the local Herbicide Resistance Project team is the only one successfully mitigating the threat. 

Western Corn Rootworm Resistance to Final Bt Trait Confirmed

November 7, 2018

Corteva Agriscience recently confirmed resistance to the Cry34/35Ab1 Bt protein in Delaware County. 

Three of four Bt traits targeting corn rootworm (Cry3Bb1/Yieldguard rootworm; mCry3A/Agrisure RW; and eCry3.1Ab + mCry3A/Agrisure Duracade) are not reliable for rootworm control due to widespread resistance. Due to a reduction in effectiveness of the Cry3 proteins, farmers have come to rely upon Cry34/35Ab1 for rootworm protection, placing significant selection pressure on this trait.

New course on herbicide resistance and weed management available through extension

November 13, 2018

Designing an effective weed management plan to combat troublesome weeds and delay the development of herbicide resistance requires careful planning. The United States Department of Agriculture estimates the cost of dealing with herbicide resistance once it occurs to be $20-60 per acre. Developing long-term weed management plans that reduce the chances of resistance developing will minimize the cost of resistance.

ICM Conference 2018: Day 1 Round Up

November 28, 2018

Day 1 of the #ICM30 Conference has wrapped up and while I feel great about the sessions we were able to get to today, there were plenty out there that we were not able to get to that had just as helpful information. Make sure to get on Twitter and search for the #ICM30 to get all of the updates from various presentations today.

Here is a round-up of several sessions today in relation to Integrated Pest Management:

Alison Robertson
What’s new with corn disease?

ICM Conference 2018: Day 2 Round Up

November 29, 2018

Day 2 of the #ICM30 Conference has wrapped up and while we feel great about the sessions we were able to get to today, there were plenty out there that we were not able to get to that had just as helpful information. Make sure to get on Twitter and search for the #ICM30 to get all of the updates from various presentations today.

Here is a round-up of several sessions today in relation to Integrated Pest Management:

Brad Coates
Insect Resistance to Bt

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