Foliar Diseases of the Corn Plant
Emerson Nafziger, Extension Agronomist - University of Illinois
Now is probably not the time to spray for diseases in the corn crop. Todd Gleason has more…
University of Illinois Extension Agronomist Emerson Nafziger…
1:05 radio self contained
University of Illinois Extension Agronomist Emerson Nafziger says foliar fungicides should not be used on the corn crop just prior to pollination.
Nafziger :20 …that the decision needs to be made.
Quote Summary - We certainly don’t want to do that before pollination time. Also, it is important to actually have the disease in the field and for it to still be developing at the time a decision is made.
Nafziger is not opposed to making a foliar fungicide application, but he is fully aware it doesn’t make as much economic sense today as it did when corn was worth $6 a bushel.
Nafziger :11 …we need to keep that in mind as well.
Quote Summary - It is just with the price of corn it takes more bushels than it did a few years ago to pay for that application. We need to keep that in mind as well.
The University of Illinois hasn’t ever advocated using a foliar fungicide for yield boost.