Agronomy eUpdate August 7th, 2025

Issue 1065

Planning your wheat fertility program: Start now by soil testing

Wheat planting is approaching, and now is the time to soil test. Sampling your fields allows for precise fertilizer planning. A timely soil test, both surface and profile, can improve input efficiency and crop performance. Learn what nutrients to test and how fall sampling supports better results.

wheat soil testing fertilizer soil fertility 

Soil fertility and wheat production: Profile nitrate levels and wheat yield

Fall soil profile testing for nitrate continues to play a valuable role in efficient nitrogen management for winter wheat in Kansas. It's a cost-effective way to fine-tune your fertilizer program, avoid unnecessary inputs, and protect both yield and the environment.

wheat fertilizer profile nitrate residual nitrate soil fertility 

Wheat Streak Mosaic Complex: Webinar and management resources now available

K-State specialists recently hosted a special-topic webinar on the 2025 wheat streak mosaic outbreak, covering mite and virus biology, volunteer wheat control, and variety selection. The recording and related resources are now available. This article offers links to all the resources in one place.

volunteer wheat wheat streak mosaic wheat curl mite disease management webinar wheat-free window 

Late-season insect pest considerations and Bt stewardship in cotton

From bollworms to stinkbugs, late-season pests can still threaten Kansas cotton. Learn how to scout, when to treat (especially for Bt cotton), current treatment thresholds, and control options as the crop approaches bloom.

insects cotton late-season bollworms pest control 

Late-summer insect update: Fall armyworms

Trap counts and field reports confirm increasing fall armyworm pressure across south central, central, and eastern Kansas. Scouting should be underway and continue until the first frost, especially for pasture, wheat, and other at-risk crops. Early treatment is key.

insects fall armyworms pest management 

Self-guided tours of herbicide evaluation plots are open near Manhattan

K-State's Weed Science program has opened its herbicide evaluation plots for corn and soybeans to self-guided tours. Located near Manhattan, the plots feature QR code access to trial info. The plots are available now through harvest.

weeds weed control herbicide application 

North Central Kansas Experiment Field Fall Field Day - August 21

Join us for the 2025 North Central Kansas Experiment Field Day on Thursday, August 21, at 5:00 PM near Scandia. This year's event features updates on precision ag, drone tech, weed management, and soybean breeding, followed by a free dinner.

Fall Field Day North Central Kansas 

Wheat Rx Preplant Seminar - August 20 in Pratt

Don't miss the Wheat Rx Seminar in Pratt on August 20. Learn how to implement proven, research-based strategies for wheat success. Topics include variety selection, wheat streak mosaic, and high-yield management, plus a new initiative on conservation in wheat systems.

wheat Field Day Wheat Rx