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Old 07-31-2013, 09:36 PM
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RigglePLC RigglePLC is offline
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Join Date: Jul 2006
Location: Grand Rapids MI
Posts: 10,744
crabgrass and new soil

Here is a spot of crabgrass sprayed with quinclorac on my lawn about 4 days ago, July 27th. It is OK to reseed right away--if I wanted.

It is best in the northern states to wait to reseed until about mid-August, or when temps come down below 85. Or...about 8 weeks before frost. Cool night temps will block crabgrass germination and early growth in the fall. Crabgrass is not a problem when temps cool off in the fall.

Grass seed sprouts fast In August (if the soil is moist) because the soil temperature is high.
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