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General No-Till
Fall Weed Control
reply from
Darrell Bruggink
If you're making fall herbicide applications, what are the main weeds you are trying to control and what type of herbicide program are using to control weeds? What are your thoughts on using glyphosate as part of a fall burndown, particularly with today's increasing glyphosate-resistance issues? Anybody not using glyphosate in their fall burndown? Anybody out there opposed to fall burndowns? Why?
reply from
Grant Corley
We are after Henbit, Mustards & any other winter annuals, but it certainly seems to supress or delay the early germinating summer annuals also. Henbit has become a serious problem in this area the last few years. We have had good success w/ Valor XLT + Lo-Vol 2-4-D on land going to soybeans. We used to use Glyphosate in the mix, but this last fall, We dropped it out & still seem to have the same control this spring. Things are really clean yet this spring & we all know it has been a much warmer than normal winter & spring & it is still holding rather well. Some pig weeds starting to come thru in a few places. On land going to corn we used Atrazine + Lo-Vol 2-4-D + Crop Oil & had good success. At the risk of getting yelled @ by the "Cover-Crop" promoters, I will share that we will consistently get higher yields on the following crop if we use a Fall "Burn-down" instead of a cover crop & have a clean field all winter. Later, Grant
reply from
Roger Wenning
I am opposed to fall burndown. Bare soil is prone to wind and water erosion. Cover crops have done an excellent job of supressing all winter annuals,including marestail. This also leaves living roots for my herd of microorganisms to feed on during the winter. Plus, I get the advantage of holding nutrients until my next crop can use them.
reply from
Grant Corley
By Clean field, I mean free of winter annual weeds. There is no shortage of ground cover in 160 bu corn stalks & residue left over after harvest. This will control erosion issues quite well. You have to do something w/ the winter annuals that are there before you plant the cover crop, or they will take it over. "Been there, Done that" too many times. High yielding irrigated soybean straw & residue is also good winter cover & does not take precious moisture needed by the next crop. in fact, a crop residue mulch not only helps control wind & water erosion, but also helps preserve moisture. In the many times I have planted cover crops, I have yet to see them overcome already establishede Henbit or Marestails. Later, Grant







