Disease
Agronomic specialists are encouraging farmers to make their corn harvest plans now, prioritizing which fields to combine first and so forth. Evaluating how well the crop is standing on a field by field basis can help you plan the process and minimize having to pick up down corn.
High disease pressure and moisture variability could make for a tricky fall harvest season in the Midwest. Lean on these crucial combine settings adjustments to help you hang onto as many kernels as possible.
A prematurely collapsing ear shank stops grain fill, leading to yield reductions that can reach as high as 40%.
The onset of drought and disease are causing growing concerns about the size of the U.S. corn and soybean crops this year. Analysts caution while the crops may be going backward in terms of yield, it’s possible USDA actually raises its yield estimates in the September report.
The Midwest crop is being pushed into black layer (R6) prematurely in some areas in ways that are easy to confuse with normal drydown factors.
The disease is causing turmoil for farmers who have a large crop in the making. In some cases, a Hail Mary fungicide application at R4 up to early dent (R5) might make sense this season, say agronomists.
The Minnesota corn crop is going for gold. Pro Farmer Crop Tour scouts expect the crop will reach a record 202.86 bu. average, if it can outpace southern rust and tar spot. Scouts peg the Iowa corn crop at a 198.43 bu. average, but it also faces disease challenges.
Iowa could be the nation’s top state this year for corn and soybeans, but both crops are in a race to beat disease pressure that’s gaining momentum. Illinois corn continues to ride the struggle bus, while the soybean crop there is positioned to deliver high yields.
There is still up to 55% of the kernel dry weight left to be accumulated by many corn hybrids at this point — starch that can contribute significantly to grain fill and higher test weights.
With at least four weeks left in the growing season, Ferrie encourages farmers to stay ahead of heavy disease pressure in fields, particularly in what he calls D hybrids — those that punch their yield card late-season.