Crab on grass
image by Miheco/Flickr.com
Crabgrass preventer should be applied when the soil temperature is 54 degrees. Temperatures vary from state to state and even within yards, so apply when other weeds are seen sprouting near concrete.
About this Author
Diane Dilov-Schultheis has been writing professionally since 2000. She is a food and travel writer who also specializes in gaming, satellites, RV repair, gardening, finances and electronics. She is a member of the Society of Professional Journalists and has been published online at the Travel Channel and Intel.