Stephen supports the citizens of South Dakota in his role as an SDSU Extension Pesticide Education Field Specialist at the South Dakota State University campus in Brookings.
Stephen Robertson
SDSU Extension Pesticide Education Field Specialist
Also by Stephen Robertson
Vertento® Insecticide Approved for Red Sunflower Seed Weevil Management
Recently the Environmental Protection Agency approved a Section 18 Emergency Exemption label for Vertento® Insecticide for use on sunflowers for red sunflower seed weevil management in South Dakota. This exemption is effective from July 15 to August 31, 2026.
Jul
23
Moth Walk @ McCrory Gardens
SDSU Extension and McCrory Gardens will host a moth walk to kick off National Moth Week on Thursday, July 23, 2026, from 9:00 to 11:00 p.m. CDT at McCrory Gardens (631 22nd Ave, Brookings, SD 57007).
Soybean Plants Are Entering the Reproductive Stage (R1): Last chance to spray select herbicides
The summer solstice roughly marks the date when soybean plants switch from vegetative growth to reproductive growth. An important aspect of the reproductive growth stage is that many herbicides can no longer be applied after plants reach any bloom stage.