Berg Agricultural Hall 316
Agronomy, Horticulture & Plant Science-2207A
Brookings, SD 57007
Graig supports the citizens of South Dakota as an SDSU Extension Weed Ecology Field Specialist at the South Dakota State University campus in Brookings.
It’s August and field bindweed, one of our most-persistent perennial weeds, is flowering. Although field bindweed is not statewide noxious, it’s locally noxious in Bennett, Bon Homme, Clarke, Lake, Stanley, and Yankton counties.
White thistle disease can be seen among many Canada thistle plants throughout South Dakota this growing season. Plants infected with the disease exhibit significant reductions in both growth and seed head compared with non-infected plants.
At the start of August, crabgrass is often prevalent in lawns. Ideally, this weed should be controlled earlier in the season, but if early management was missed, a post-emergence herbicide can help control it before it produces more seed.
