The top of this corn suddenly died. The searches that I have done appear to suggest that this may be anthracnose fungus. I have searched extensively online but cannot find any spray for corn to take care of anthracnose or any other corn fungus. Could you please help identify what exactly this is and what the solutions are. Thank you.
Corn top die back
- Thread starter G59
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- Feb 5, 2019
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- East Texas
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- old zone 8b/new zone 9a
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There are several possible causes of those top leaves dying back like that. In my experience, excessive heat and drought stress can do it. Nutrient deficiencies e.g. lack of nitrogen can also do it.
If it is anthracnose, normally you would see black lesions and a pink jelly-like substance on the stalk. I can't see that in your photo. To my knowledge, there are no effective fungicides for it.
If it were mine and I was sure that excessive heat, drought stress, and/or nutrient deficiencies were eliminated as possible causes, I believe I would remove and destroy the stalks that exhibit those dying leaves...unless there are just too many of them.
I'd like to see a photo which includes many stalks to get a better feel for the problem, if possible.
There are several possible causes of those top leaves dying back like that. In my experience, excessive heat and drought stress can do it. Nutrient deficiencies e.g. lack of nitrogen can also do it.
If it is anthracnose, normally you would see black lesions and a pink jelly-like substance on the stalk. I can't see that in your photo. To my knowledge, there are no effective fungicides for it.
If it were mine and I was sure that excessive heat, drought stress, and/or nutrient deficiencies were eliminated as possible causes, I believe I would remove and destroy the stalks that exhibit those dying leaves...unless there are just too many of them.
I'd like to see a photo which includes many stalks to get a better feel for the problem, if possible.