What is the best what to kill crabgrass?
Answer Hi Bob Jones, >>”…Crabgrass…?” There are several good methods and the best one depends upon your climate and how seasonal your lawn situation is. CRABGRASS is a warm-weather annual weed but it is found almost everywhere. With the first hard freeze in the fall, all mature plants will die. All of the Crabgrass plants that you may have NEXT year will be the progeny of the last summer’s seed-crop. So, working to keep this plant from dispersing seeds is a particularly good control measure. If you live where there is warm weather all year long (Hort-zones 10+), then this and other ‘annual weeds’ will be more enduring; the old plants may die and be replaced by new ones if seeds are around. Use these chemicals for CRABGRASS and similar grassy weed all season control: Pendimethalin, Prodiamine (Barricade), Oxadiazon (Ronstar), Bensulide (Betasan), DCPA (Dacthal), and Benefin (Balan). In Bermuda grass lawns where Crabgrass has already started to grow when the weather warms-up, a chemi