Many environmental conditions can cause pollination problems in wheat, such as freeze damage, drought, or heat stress. This year, the most concerning factor as it relates to a potential for unsuccessful pollination is heat stress, in particular that experienced during May 9-12
The July heatwave came at a particularly critical period for the Kansas corn crop this year. Heat stress will have more of an impact on corn during the reproductive stage of growth when combined with drought stress. Stress conditions were very severe in parts of central, south central, and southeast Kansas.