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Philip Rozeboom

SDSU Extension IPM Coordinator

605-688-4377

Berg Agricultural Hall 228
Box 2100A
Brookings, SD 57007

Philip supports the citizens of South Dakota in his role as the SDSU Extension IPM Coordinator based at the South Dakota State University campus in Brookings.

State & Regional Offices

SDSU Campus

Also by Philip Rozeboom

Redlegged, differential, and twostriped grasshopper nymphs.

Various Grasshopper Species Are Active Across South Dakota

While scouting, we have noticed increased grasshopper nymph activity and in some areas these populations are close to threshold levels. Crops in areas that have had high populations should be regularly scouted to ensure that extensive defoliation doesn’t go unnoticed.

A red, weed hoe next to a freshly cut, green weed surrounded by brown soil.

Reminder: Cutoff for over-the-top dicamba products labeled for soybean is June 30 or R1 growth stage in South Dakota

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.

Bird cherry oat aphids, English grain aphids, Greenbugs.

Aphid Populations Detected in Wheat

Aphids are present in South Dakota wheat fields, and that means it’s time to start scouting.