Southern Rust impact on yield
Baby Robin
Posted 9/11/2025 18:38 (#11362331 - in reply to #11362217)
Subject: RE: Southern Rust impact on yield


Fontanelle, IA
Seriously, though, run some rough math. NE Iowa is a garden spot. We went up to okoboji on Aug 15-18 - I never seen it look so good and uniform the whole trip. Northern half is probably 1.3 x what we do in the south. Right or wrong, I think fungicide use was down to maybe 60%.

Southern rust stole an ABSOLUTE BUNCH OF TOP END BUSHELS….. but I think the ear counts “trump” some of stolen losses to rust. Other losses to nitrogen /mineralized nitrogen leaching. August 1 - we had the most amazing crop from top to bottom and east to west. Yes- there were a few exceptions/holes. But, we were probably starting at 220+ on aug 1.

Again, the states ultimate yield will Hinge on harvest weather. We can’t tolerate much wind with poor stalks. We are 1 - 60 mph wind away from corn reels in more fields than we realize
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