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aerial view of South Dakota farm and surrounding land

Pest & Crop Newsletter

SDSU Extension publishes the South Dakota Pest & Crop Newsletter to provide growers, producers, crop consultants, and others involved in crop production with timely news pertinent to management of pests, diseases, and weeds in South Dakota.

Gray beetle with long antennae that are alternating white and black pattern on green leaf petiole.

Dectes Stem Borer Adults Active in Sunflower

In South Dakota, one of the insects that is commonly observed in sunflower is the Dectes stem borer larva. At this point in the season, adults are beginning to become active with females laying eggs in sunflower plants.

pair of hands holding soil

SDSU Extension to Host Conservation Drainage Workshop at Southeast Research Farm

July 10, 2019

SDSU Extension will be hosting a drainage workshop Wednesday, July 17 and Thursday, July 18 starting at 9:00 a.m. CDT at South Dakota State University’s Southeast Research Farm.

Conservation, Soil Health, Soil Fertility, Soybean, Wheat, Corn, Cover Crops, Field Pea, Flax, Oats, Oilseed, Pulse Crops, Sorghum, Sunflower, Crop Management, Crop Treatments

healthy rangeland with a diverse variety of grasses and plants throughout

SDSU Extension Hosts 2019 Forage Field Day in Beresford August 7

June 24, 2019

August 7, 2019 SDSU Extension will host a Forage Field Day for livestock producers, agronomists and industry clientele interested in producing and storing high quality forages.

Forage, Crop Management, Beef Cattle, Dairy Cattle, Corn, Wheat, Field Pea, Flax, Oats, Oilseed, Pulse Crops, Sorghum, Soybean, Sunflower

Black caterpillars with white stripes feeding on green Canada thistle.

Thistle Caterpillars Showing Up on Canada Thistle

This week we received reports of caterpillars feeding on Canada thistle. After taking a look at the caterpillars, we determined that they are thistle caterpillars. However, we typically don’t see thistle caterpillar activity in S.D. until July or August. So why are they showing up so early this year?

United States Environmental Protection Agency logo.

Cancellation of Several Neonicotinoids

On May 20, 2019, the United States Environmental Protection Agency announced the cancellation of registrations for 12 products that contain neonicotinoid insecticides. The cancellation of the product registrations was voluntarily requested by the companies that had registered the products.

Young winter wheat plants with light yellowish green leaves, a symptom of nutrient deficiency.

SDSU Extension Seeks Grower Input for South Dakota Nutrient Management Survey

June 12, 2019

SDSU Extension, the South Dakota Nutrient Research and Education Council and the South Dakota Agricultural Experiment Station at SDSU are interested in learning more about the nutrient management practices you use on your farm through a survey.

Corn, Soil Fertility, Cover Crops, Forage, Field Pea, Flax, Oats, Oilseed, Pulse Crops, Sorghum, Soybean, Sunflower, Wheat, Crop Management, Crop Treatments, Conservation

Diagram showing increasing harvested acres of corn and soybeans and decreasing harvested acres of wheat in South Dakota. Other crops remain steady, while hay decreased and then slightly increased.

Crop Diversity Reduced in South Dakota

The recently released 2017 Census of Agriculture data shows that South Dakota has experienced a considerable increase in acreage harvested of two major crops, corn and soybeans over the past decade.