Understanding your Risk

As I study the movement of the US Drought Monitor from NWS, it’s interesting and worth paying attention to, but what can I do about it? I have attached below a picture of Corn Rootworm beetle counts from 2017 (borrowed from an article from the January 29th edition of Wallaces Farmer). CRW beetles are easily the top priority pest that I keep track of. There is a reason the industry refers to it as the billion dollar pest.

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Please do not use this map as a prediction of what is to come. You know your acres and environment better than this map and I hope that you did some scouting of your corn-on-corn acres or at least have talked to neighbors and know nearby corn-on-corn fields. The CRW are very sensitive to management and environment, as they are a very specialized pest and have a specific diet which is a blessing and a course. Both the Western and Northern Corn Root worms have adapted to management practices, the Western with its Eastern Variant and the Northern with its extended diapause. I believe the lack of snow cover, deep frost and temperature fluctuations are going to help knock down the winter survival. I also believe when and if some of our trade area experiences a drought the economic impact from yield and plant health will be amplified. Understand the Best Management Practices around crop rotation and insecticide use and if you have questions contact one of our agronomists or your local Prairie Brand representatives.


Berny Sohm

Prairie Brand Corn Product Manager