Once the crabgrass has already emerged, another option for control is the use of postemergence herbicides. Crabgrass, Smooth; Crabgrass, Smooth. Primesource Quinclorac 1.5L Select (Drive XLR8) Liquid Crabgrass Killer. Bermudagrass may be treated with Impose at 4 to 8 oz/acre when crabgrass is actively growing in … The key to crabgrass control is making sure the seeds can’t germinate. Peak crabgrass emergence is from mid-May to July 1st. As an annual grass sown from seed, when the plants die in the fall, they leave gaping holes throughout the lawn during the winter. Crabgrass is an annual weed that invades flower beds and lawns, but a range of methods provide control without harming … Both large and smooth crabgrass are summer annuals that germinate primarily in the spring, grow through the summer, produce seeds in the fall and die following the first killing frost. Apply up … TurfFiles provides turfgrass information to homeowners, students, extension personnel and professional turfgrass managers. Of these products, “Crabgrass Killer for Lawns” contains fenoxaprop -p-ethyl and will control … Seedheads mature at the end of summer prior to fall/autumn. Closely related to large crabgrass (Digitaria sanguinalis) and southern crabgrass (Digitaria ciliaris), these three species are often considered to be the most problematic weeds in lawns due to their ability to survive extremely low mowing heights, poor quality soils, and dry/hot climates. Quali … Subscribe By Email chevron_right. For more information on weed control, search this blog and check out our Turfgrass Weed Control for Professionals Publication. Competition is enhanced by thin open turfgrass stands, improper mowing heights for the desired turf, summer fertilization, and light, frequent irrigation. Professor and Extension Turfgrass Specialist. Prostrate growth of smooth crabgrass in short cut turfgrass. Cooperative Extension has offices in every county, https://content.ces.ncsu.edu/smooth-crabgrass, Mountain Horticultural Crops Research & Extension Center, Vernon G. James Research & Extension Center, Entomology – Insect Biology and Management, Mountain Horticultural Crops Research and Extension Center, Weed Management in Nurseries, Landscapes & Christmas Trees, [benefin + trifluralin], MOA 3 + 3 (0.86 G) (Fertilizer with Team Pro 0.86%), bensulide, MOA 8 (4 EC, 8.5 G, 12.5 G) (various brands), varies because several concentrations available, [bensulide + oxadiazon], MOA 8 + 14 (6.56 G) (Goosegrass/Crabgrass Control), metolachlor, MOA 15 (7.62 EC) (Pennant Magnum), napropamide, MOA 15 (50 DF) (Devrinol 50 DF), oryzalin, MOA 3 (4 AS, 4 L) (various brands), oxadiazon, MOA 14 (50 WP) (various brands), oxadiazon, MOA 14 (3.17 SC) (various brands), [oxadiazon + prodiamine], MOA 14 + 3 (1.2 G) (various brands), pendimethalin, MOA 3 (3.8 CS) (various brands), [pendimethalin + dimethemamid], MOA 3 + 15 (1.75 G), prodiamine, MOA 3 (0.5 G) (various brands), fenoxaprop, MOA 1 (0.57 EC) (Acclaim Extra), metribuzin, MOA 5 (75 DF) (various brands), sethoxydim, MOA 1 (1 EC) (various brands), quinclorac, MOA (27 + 4) (various brands), [quinclorac + sulfentrazone + 2,4-D amine + dicamba], MOA (27 + 4) + 14 + 4 + 4 (1.79 L) (Q4 Plus), [quinclorac + mecoprop + dicamba], MOA (27 + 4) + 4 + 4 (2.45 SL) (Onetime), [carfentrazone + quinclorac], MOA 14 + (27 + 4) (75 WG) (SquareOne), [sulfentrazone + quinclorac], MOA 14 + (27 + 4) (75 WG) (Solitaire), MSMA, MOA 17 (6 SL, 6.6 SL) (various brands), MSMA, MOA 17 (6 SL, 6.6 SL) (various brands) + metribuzin, MOA 5 (75 DF) (Sencor), membranous; 0.06 - 0.12 inches (1.5 - 3 mm) long, blunt to collar-like, slightly wavy, sharp-pointed; smooth above, with mostly a few hairs near base, edges not hairy or sparse hairs along edge, dull green or tinged with purple, often divided, distinct, few hairs at the edge, flattened; sheath is not hairy, lower sheaths may be sparsely hairy. Crabgrass can also make a lawn look unkempt. Control. Complete control may not be achieved under certain conditions when Quali-Pro Quinclorac 75 DF is applied to annual grasses at 2 – 4 tiller stage. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians.