Pre-emergent herbicides stop weeds by attacking roots and shoots before they sprout. They also kill grass seed, so space seeding and spraying at least 12 weeks apart. Plan carefully to time both tasks ...

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Unless you've joined a very small club of people who enjoy turfgrass interspersed with dandelions, henbit, clover, and other interlopers, applying a pre-emergent herbicide to your lawn is one of the ...