Identification of two Eleusine indica (goosegrass) biotypes of cool-season turfgrass resistant to dithiopyr.

Background: Turfgrass managers reported poor Eleusine indica control following applications of the mitosis-inhibiting herbicide dithiopyr in cool-season turfgrass. Field, glasshouse, and laboratory experiments were conducted to understand the response of these biotypes to dithiopyr and prodiamine.

Results: In field experiments at two locations with putative dithiopyr-resistant E.

Environmental effects on efficacy of herbicides for postemergence goosegrass (Eleusine indica) control.

Experiments were conducted to understand environmental effects on efficacy of herbicides used to control goosegrass (Eleusine indica L. Gaertn.).