When should I put crabgrass control down?

Pre-emergent crabgrass control means just that...BEFORE crabgrass germinates! This product, just as other similar crabgrass controls on the market, needs to be applied early in the spring, before active growth of the crabgrass plant begins. In the Northeast, this occurs between forsythia and lilac bloom, normally anytime from the end of March through the end of April.

The chemical forms a barrier on the soil surface, preventing the crabgrass seedlings from germinating. If the soil surface is disturbed, crabgrass in this area will germinate. A second application later in the season is recommended for longer control of crabgrass. Pre-emergent control of crabgrass is the most desirable and safest method for crabgrass eradication. Although there are post-emergent control products on the market, desirable turfgrass areas can be easily damaged if label instructions are not followed.

Note: Never apply a crabgrass preventer when seeding a new lawn or bare spots.