306 Berg Agricultural Hall
Agronomy, Horticulture & Plant Science-2207A
Brookings, SD 57007
Eric supports the citizens of South Dakota as an Assistant Professor and SDSU Extension Weed Management Specialist at the South Dakota State University campus in Brookings.
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.
Common banter at the farm gate implies farmers work long days to get the job finished. However, weed management may improve if spraying stops at a particular time of day.
Over-the-top dicamba products for application in soybean have been relabeled for the 2026 growing season. A stipulation for applying these herbicides is a cutoff date of June 30 or R1 soybean.
