OKLAHOMA ALFALFA PRODUCTION CALENDAR
Weed Control |
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| Cool-season weeds (broadleaf and weedy grasses) in established stands (less 30 stems/square
foot) can be profitability controlled with a January or a February application of Sinbar®
or Velpar®. It is important to apply these types of herbicide before the
alfalfa begins active growth to avoid herbicide damage to the alfalfa. Summer weeds in old established stands can not be controlled with January applications of Sinbar® and Velpar®. By June the herbicide is gone. However, good control of summer weeds is possible with Treflan TM E.C. applied and incorporated in January or February. |
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Short OSU Extension Publications |
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