View Full Version : When is it too late to spray TriMec or Mecamine
10-29-2002, 05:21 PM
With all the wet weather we have had here in KY I am so far behind on my applications it is not even funny. MY question to you is... Is it late for Tri-mec to work after cold weather. They are forecasting snow flurries this Friday.
The label says apply when temps are at least 60 degrees. We will still have some of this weather in November.
Just wanted to get some feeling out there of what others are doing...
10-29-2002, 09:57 PM
Ideally, you'll want to spray when weeds are actively growing.
Trouble is, that's when you're actively busting your butt on mowing.
1.) You can use an Ester (oil-based) formulation which works more effectively at lower temps.
2.) I spray past the ideal window every year and I'm convinced I still get good weed control from it. Bear in mind that FALL is a more ideal weed control time than any other time of year.
10-31-2002, 08:15 PM
'I'd put my money on the Ester formulations if the nightime lows are dipping into the 40's & the day high isn't reaching 70.
I've had to continue treating weeds after frosts & light snows & have been successful. But once the ground has frozen, it's pretty much over.
Chickweed, wild Onion, & a few other winter anuals can be controlled longer.
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