On June 16—Monday evening—a storm front that moved through various regions of Iowa. This caused some green snap in some of our corn fields. Green snap can be a problem from V5 to V8—10-to-20 inch tall corn—and again from V12 thru tasseling.
Green snap is caused by
- High winds.
- Selected growth stages where the corn plant is dramatically increasing size (height).
- Herbicide applications where a growth regulator was applied.
The early green snap damage will be less damaging to overall yield since the surrounding plants will have a greater opportunity to compensate than later growth stage damage.
Photo by Ohio State University Extension