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?
For a very cursory look her presentation, click on the Twitter feed to see the thread that @ISU_IPM shared.
Supplemental information from her presentation can be summarized as follows:
Corn Diseases:
In terms of additional diseases observed in Iowa this growing season, there was a presence of Southern Rust, but the pathogen wasn’t very impactful on the crop. Tar spot was also found, and though it has become a growing problem across the Midwest, Iowa hasn’t been completely ravaged. We’ve been tracking Tar Spot thus far in Iowa.
Corn/Cover Crops/ Seedling Diseases:
Yield drag has been observed in corn post the planting of winter rye. This can be due to poor corn seed to soil contact, low soil temperatures because of ground cover and allelopathy of cereal rye, which inhibits corn germination.
Winter rye is a green bridge for seedling diseases, which has a direct impact on yield. Pathogens that cause seedling diseases can survive on rye. Because of time constraints, a lot of times, we terminate rye and plant corn on top of it too soon, not giving the rye a chance to begin decomposing. Those pathogens come out of dying rye roots just to infect corn plants. While the recommendation is to wait 10-14 days for the rye to start browning before planting corn, we rarely get that long, while planting into green cover crops is going to further increase the risk of yield decrease.
Dave Hooker
Crop rotation reduces environmental stresses that limit corn and soybean
For a very cursory look at the presentation, click on the Twitter feed to see the thread that @ISU_IPM shared.
Michael Owen
Herbicide-resistant weeds and community-based management approaches
For a very cursory look at the presentation, click on the Twitter feed to see the thread that @ISU_IPM shared.
Additional information:
To see Day 2's Round Up, click here.
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