Agronomy eUpdate June 12th, 2025

Issue 1057

Low levels of Tar Spot have been confirmed in Kansas

The first tar spot case of the 2025 corn season has been confirmed in Doniphan County, Kansas. Early infections can lead to significant yield loss. Learn how to scout effectively and when fungicides can help.

corn disease tar spot 

Considerations for replanting or late planting of soybeans

Kansas soybean planting progress is on track, but recent weather could have compromised stands in some areas. This article walks through when replanting is appropriate and how to adapt maturity group, seeding rate, and row spacing for best results.

soybeans late planting replanting maturity group 

Field bindweed control: What works and what doesn't

Field bindweed can reduce crop yields by up to 80% and requires long-term, integrated control strategies. This article outlines cultural, mechanical, and chemical options for effective suppression, including the latest herbicide research results.

weed control bindweed field bindweed 

World of Weeds - Devil's Claw

Devil's claw is spreading and has been linked to serious yield loss and equipment issues. This aggressive broadleaf annual is sticky, tough, and surprisingly widespread. Get tips on identification, ecology, and herbicide control in this World of Weeds spotlight.

weeds weed control World of Weeds devil's claw 

Registration is open for the 2025 K-State/KARA Summer Field School

Registration is now open for the 2025 K-State/KARA Summer Field School, taking place July 8-9 and July 10-11. This year's program will emphasize soybean and cotton production with other sessions on weed control, diseases, insects, and more. Hands-on learning, CCA/1A credits, and expert-led sessions await.

KARA Field Day  

Help improve irrigation management for Kansas soybeans - Take this survey!

Are you growing irrigated soybeans in Kansas? Share your insights on cropping, irrigation, and pest management in a short survey. Your input will help refine recommendations and guide future research.

soybeans survey irrigation 

Survey data needed - Help shape forage extension programs in eastern Kansas

If you are involved in forage production, we want to hear from you. A short survey asks about forage types, locations, and management practices to help guide research and outreach across eastern Kansas.

survey forage 


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