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NC Iowa | Noticed southern rust in every field* July 20-21st. Was sprayed July 26th by plane. Normally do not apply significant acres of fungicide so on a number of fields we only sprayed half the acres. 20-30 bpa increase for sprayed vs unsprayed depending on variety.
*Except the one I already had sprayed as a fungicide trial on the 12th.
Edited by Iastfan112 10/26/2025 07:38
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Southern Corn Rust, yield response for fungicide?