How do I control crabgrass (Digitaria species) in a home lawn in Montgomery County Virginia?
Date of Correspondence: April 30, 2004 Website Resources: http://digitaria.sanguinalis.turfweeds.net http://digitaria.ischaemum.turfweeds.net Recommendation: Several products are available for spring preemergence control of crabgrass. These will include any of the following on the active ingredient list: pendimethalin, oryzalin, dithiopyr, prodiamine, benefin, oxadiazon. These products will not work on crabgrass that has already emerged. If crabgrass is visible, use a product that contains any of the following ingredients: MSMA, fenoxaprop, fluazifop, quinclorac. Read and follow label instructions for any pesticide.