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Fort Dodge, IA | This has been the primary question of the past week. Some corn was planted later and is at R3 and should be protected by fungicide. You will see from the survey of fields on the video below various situations with R4/R5 corn and disease pressure with Tar Spot, Southern Rust, Bacterial Leaf Streak, etc.
https://youtu.be/Jti3mWeE3qQ?feature=shared
Full disclosure: The corn fields in question received fungicide applications this week. | |
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Can I still spray fungicide at R4/5 corn?
