Following V6, the growing point is above ground and very susceptible to damage. Corn above this stage should be sliced open:
1.) If the growing point or region surrounding that growing point appears damaged, the producer may want to discount that plant as a viable, yield producing plant. Even if it does survive, tillering or stunting may result.
2.) If the growing point has been bruised, factor that in it as a potentially lost plant and reference the chart on page 18 of your 2014 Growing Guide or Should I Replant my Corn? (remember – we never hit potential yield, so this number represents the maximum possible loss in that field).
3.) DO NOT BASE YOUR IMPACT ESTIMATE ON HOW BAD THE FIELD LOOKS – SLICE OPEN PLANTS. THE APPEARANCE OF THE FIELD AT THIS POINT IS NOT DIRECTLY RELATED TO HARVEST-TIME YIELD!
Below are some pictures from hail injured corn in 2005:
|Leaves were shredded from the plant and some plants were shredded at nearly ground level. The corn crop was around V8.|
|This picture shows how the leaves initially showed some funky symptoms, but became progressively better as new leaves emerged from the whorl.|
This picture shows how the entire plant in some of the roughest areas of the field looked two weeks after the hail.