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Discussion in 'Pesticide & Herbicide Application' started by Cutworm, Jan 18, 2005.
Just wondering at what temp you guys stop spraying.
anything below 40 degrees F, but up here have never sprayed later than Sept. 1
Whatever you are spraying it on has to be growing and not dormant.
There is no real temperature limit for Roundup application. The only qualification is that a plant be actively growing if you want to control it with Roundup. You can actually use Roundup as a selective over the top control at lower temps - i.e., desireable plants are dormant, but weed plants are still growing.