Plants or Crops

All Plants or Crops Content

corn field with sunrise in the background

Corn Hybrid Trial Results

In 2025, corn hybrid and conventional corn hybrid trials were conducted at different locations throughout South Dakota.

Green wheat plants with some cut just above the soil surface.

Army Cutworms Causing Issues in South Dakota Wheat

Army cutworm caterpillars are active in South Dakota wheat fields. This activity is only going to increase with the forecasted temperatures.

Picture of mostly brown soil with two, small, faintly green plants near the center.

Waterhemp Has Emerged in South Dakota

Waterhemp seedlings were observed in Volga, South Dakota and other observations of emerging seedlings have been and reported elsewhere in the state. While the seedlings are still small, forecasted rain and increased temperatures will cause these plants to grow rapidly.

Wheat plants in a field showing viral symptomology of Wheat Streak Mosaic Virus.

Wheat Streak Mosaic Virus Confirmed in 2026

At the end of April, a winter wheat sample was submitted to the Plant Diagnostic Clinic displaying typical viral symptoms of chlorosis and streaking. Upon testing, this sample was determined to be positive for Wheat Streak Mosaic Virus.

Bright green, smooth Hosta leaves, and ferny foliage with bright red peony flowers in a garden.

Garden and Yard Newsletter Archive

View an archive of the articles featured in the Garden and Yard Newsletter.

a person holding a ruler into a pile of wool.

Investigating the Use of Raw and Pelleted Wool as an Alternative Mulch for Vegetable Production

This publication reviews a recent research study investigating the effects of wool as an alternative mulching option for pepper production.

Producers reviewing paperwork in a farm office.

Ag Business

Modern agriculture requires savvy financial planning and strategy.

tall trees in the Black Hills

Tree Pest Alert

From seasonal issues and timely recommendations to disease diagnosis and expert advice, the Tree Pest Alert is a trusted resource for selecting, planting and caring for trees and shrubs all year round.

Plastic bag containing numerous green larvae.

Have you observed chemical management failure for alfalfa weevils?

SDSU Extension entomologists are currently looking for alfalfa fields with a past alfalfa weevil insecticide failures. We are collaborating with North Dakota State University and the University of Minnesota on project to determine if pyrethroid resistance exists in our respective states.

People shop for plants on tables outside
May 31

Garden Discovery Festival @ McCrory Gardens

SDSU Extension and McCrory Gardens are kicking off the summer programming with the Garden Discovery Festival on Sunday, May 31, from 1:00 to 4:00 p.m. CDT at McCrory Gardens (631 22nd Ave, Brookings, SD 57007).