Pail from Buffalo, Ny writes
The Crabgrass Control Plus 0 - 0 - 7 with 0.37% Prodiamine Herbicide rate will depend on the amount of nitrogen you need to apply per application per year. We recommend using a soil analysis test kit or taking a sample of your soil to your local cooperative extension office so your soil can be analyzed to determine what nutrients your soil is lacking. The healthiest, hardiest lawns are fertilized 2-4 times per year, fall, summer, early spring and late spring.
Answer last updated on: 04/24/2018
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