Can I control crabgrass in the spring of the year and also seed my lawn?
Yes, you can. My Jonathan Green New Seeding Fertilizer plus Crabgrass Preventer, will control crabgrass while allowing the desirable grass seed to germinate and establish. You will want to apply my Crabgrass Preventer plus New Seeding Fertilizer, last on the lawn after you have raked and seeded. This is because the product establishes a barrier near the surface of the soil, which prevents the germination of crabgrass and other weedy grasses.