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Plan Herbicides For Possible Later Forage Crops
4/24/2003
Ron F. Meyer
Area
Extension Agent (Agronomy)
Colorado State University
Extension
Golden Plains Area |
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When selecting herbicides for your corn, beans, milo, and other
crops, consider whether there’s a possibility for a pasture, hay or silage
crop in that field in the next year and a half.
Many success stories
with forage and pasture crops recently have come from using annual forages. No
matter when you could use something to graze, including winter time, an annual
plant may exist that could work well if managed properly and conditions permit.
Many times a small grain like oats or rye or a brassica like turnips, or a
grass-like millet may work well. Also consider, however, the potential for
later frustrations, one of the biggest of which are problems related to
herbicide carryover. Many annual forages are sensitive to herbicide carryover,
especially atrazine. Often we identify a forage crop to plant but the risk of
failure is too high due to herbicides. This problem isn’t limited to
annual forages. Perennial cool-season grasses and alfalfa also are sensitive to
herbicide carryover.
If you answer yes to one of the following
questions, you might want to reassess your herbicide options this spring.
Interested in flying rye or turnip seed into your standing corn later this year
for extra fall pasture? How about planting triticale this fall or oats next
spring? Or maybe irrigated pasture or alfalfa?
These options may not be
available if you use carryover herbicides like atrazine, Pursuit, Hornet,
Command, or Treflan, among others. Rethink your herbicide plans if forages may
be needed later, and keep your options open. Controlling weeds while keeping
flexibility in a field may be important later in the season.
Source:
Bruce Anderson
Extension Forage Specialist
University of
Nebraska |
Page Created and Maintained by: Perry D. Brewer, Area
Extension Agent (Technology Education/Youth)
4/29/2003 |
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Colorado
State University, U.S. Department of Agriculture, Kit Carson, Phillips,
Washington and Yuma counties cooperating. Extension programs are
available to all without discrimination. Where trade names are used, no
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Extension is implied. |
