Agronomy eUpdate May 25th, 2023

Issue 958

Plan now for volunteer corn control

Volunteer corn may or may not be considered a weed, but it does pose problems in some fields. One of the factors that makes volunteer corn management difficult is the prevalence of glyphosate and/or glufosinate resistance. There are some steps farmers can take early in the growing season to manage volunteer corn.

weed control volunteer corn 

Effects of high temperatures on wheat

Wheat is generally sensitive to unusually high temperatures at nearly every stage of growth, being more sensitive in the reproductive stages than in the vegetative stages. High temperatures occurred when much of Kansas' wheat crop was either in the heading or flowering stages. This timing is a cause of concern and has resulted in many symptoms of heat stress

wheat high temperatures heat stress 

Check wheat heads for pollination problems

Many environmental conditions can cause pollination problems in wheat, such as freeze damage, drought, or heat stress. About 4 to 5 days after flowering, producers can begin checking their fields to see if their wheat successfully pollinated.

wheat pollination 

Possible causes for white heads in wheat

White heads have been appearing in many wheat fields around Kansas. Heads might be completely white starting from the stem or have just partial bleaching showing a few spikelets with discoloration. There are many causes of whiteheads which are discussed in this article.

wheat white heads 

Crop options after early terminated wheat

Cropping options to follow an early terminated wheat crop could be similar to those for full-season crops. At this point, viable crop options are still corn, soybeans, and sorghum. General agronomic considerations, herbicide carryover, and weed management are addressed for each crop in this article.

wheat termination failed wheat 

Kansas Wheat Crop Conditions: Summary of the 2023 Wheat Quality Tour

The 2023 Wheat Quality Tour took place May 15 - 18, 2023. Approximately 106 people actively scouted hundreds of Kansas wheat fields in 27 groups spread across six routes. The Kansas wheat crop is currently facing many challenges. This report summarizes the tour and gives an estimate of the overall production of Kansas wheat in 2023.

yield potential wheat Wheat Quality Tour wheat plot tours  

Corn rootworm egg hatch has begun in Kansas

Western corn rootworm resistance to Bt corn continues to be an issue in continuous corn in the United States. Evaluating corn roots for rootworm damage during the growing season is highly recommended. Eggs should begin hatching after approximately 380-degree days have accumulated. Learn more in this article.

insects corn corn rootworm degree days 

Growing season precipitation for Kansas - A dry start

This article summarizes the growing season precipitation across Kansas since April 1. How did April and May compare to past years? There is also a discussion of the summer outlooks for temperature and precipitation.

weather precipitation growing season 

2023 Wheat Plot Tours - Updated for May 26 through June 8

Make plans to attend a wheat plot tour near you to see and learn about the newest available and upcoming wheat varieties, their agronomics, and their disease reactions. This article contains the updated details for May 26 through June 8 plot tours.

wheat wheat plot tours  

Wheat Disease Field Day in Manhattan - June 5, 2023

The Department of Plant Pathology and K-State Research and Extension will be hosting a wheat disease field day on Monday, June 5 at the Rocky Ford Plant Pathology Farm just north of Manhattan. This will be a great opportunity to see several wheat diseases in the field. Get registered soon!

wheat disease Field Day