Wet Winter Hurts Weed Control
Amanda Huber
Southeast
Producers who have glyphosate-resistant Palmer amaranth are relying on residual herbicides at pre-plant as well as pre-emergence this growing season, says Jason Norsworthy, associate professor of crop, soil and environmental sciences in the University of Arkansas' Division of Agriculture.
"Producers are sometimes reluctant to apply herbicides when they cannot physically see Palmer amaranth in the field," he says. "However, our data suggests that once Palmer amaranth emerges, it will be more difficult, if not impossible, to control, especially if it is glyphosate-resistant and ALS (Staple/Envoke) resistant."
Don't Wait Too Late
What moisture there is still left in the soil profile is likely to help with the activation of the residual herbicides, and because it has stopped raining so frequently, producers should be able to apply postemergence products in a timely manner.
source : cottonfarming
Amanda Huber
Southeast
Producers who have glyphosate-resistant Palmer amaranth are relying on residual herbicides at pre-plant as well as pre-emergence this growing season, says Jason Norsworthy, associate professor of crop, soil and environmental sciences in the University of Arkansas' Division of Agriculture.
"Producers are sometimes reluctant to apply herbicides when they cannot physically see Palmer amaranth in the field," he says. "However, our data suggests that once Palmer amaranth emerges, it will be more difficult, if not impossible, to control, especially if it is glyphosate-resistant and ALS (Staple/Envoke) resistant."
Don't Wait Too Late
What moisture there is still left in the soil profile is likely to help with the activation of the residual herbicides, and because it has stopped raining so frequently, producers should be able to apply postemergence products in a timely manner.
source : cottonfarming
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