Content by Philip Rozeboom

a handfull of sunflower seeds with small holes in the shells on a white table.

Differentiating Insect Damage to Sunflower Seeds

This publication covers different insect damage characteristics to sunflower seeds.

Two pictures of green grass demonstrating their physical differences.

Preemergence Crabgrass Herbicide Decisions

The optimal application window for preemergence herbicides to manage crabgrass in turf is normally during April, and earlier in the month during warmer years.

Field of green soybean plants with green corn and blue sky in the background.

Performance of Enlist One (2,4-D) and Liberty (Glufosinate) Applied in Mixture or Sequentially for Weed Control in Soybean

Trial results for Enlist One (2,4-D) and Liberty (Glufosinate) on weed control in soybean.

A reddish-brown Hessian fly with long black legs and beaded antennae resting on a plant.

Hessian Flies in South Dakota

This fact sheet covers the identification, life cycle and management options for Hessian Flies in South Dakota.

Parasitoid wasp with an orange abdomen and dark brown head and thorax.

Wheat Stem Sawfly Parasitoid: Bracon cephi

This fact sheet covers the identification and lifecycle of a parasitoid wasp species in South Dakota that attacks Wheat Stem Sawfly larvae.

A yellowish-orange beetle with black squares along the back resting on a green plant.

Bean Leaf Beetles in South Dakota

This fact sheet provides an overview of the biology of the Bean Leaf Beetle and management options for South Dakota.

A long slender black and yellow bug with smoky gray wings and long antennae.

Wheat Stem Sawflies in South Dakota Wheat

This fact sheet covers the identification, lifecycle and management of Wheat Stem Sawflies in South Dakota.

EPA Approves Dicamba for Over-the-Top Applications in Tolerant Soybean in 2026 and 2027

The Environmental Protection Agency has issued a limited-time registration of over-the-top use of dicamba on tolerant cotton and soybean for two growing seasons, 2026 and 2027.

Two clear bottles labeled 4 and 5 with white liquid inside. Bottle 5 has white substrate settled at the bottom.

Herbicide Mixing Order

The order in which herbicides are mixed in a tank can influence the effectiveness.

Plastic bag containing numerous green larvae.

Let SDSU Extension know how alfalfa insects are affecting you

January 29, 2026

South Dakota State University Extension is encouraging forage producers to participate in a survey about managing alfalfa insects.