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Wheat tillers with lower leaves covered with tan-brown lesions. The ground beneath has wheat stubble from previous wheat crop.

Scout for Tan Spot in Winter Wheat

Tan spot was observed in a few winter wheat fields scouted recently. It is important to scout winter wheat for tan spot and other early diseases developing before deciding to apply an early-season fungicide tank mixed with herbicide.

Indoor trade show exhibition at state fairgrounds.

Attending World Pork Expo? Consider Biosecurity

The World Pork Expo will return to the Iowa State Fair June 9–11, 2021. Pork producers and production employees must always be vigilant about biosecurity, especially when visiting industry events.

Green beetle larvae with a white stripe running down its body.

Alfalfa Weevil Activity Prediction Update: May 20, 2021

This week we accumulated degree days for alfalfa weevils at a rapid rate. As a result, we observed many areas of the state potentially move through more than one larval life stage.

Purple-brown caterpillar with orange head on a green corn leaf.

Common Stalk Borer Activity Estimate: May 20, 2021

Warmer weather is finally here. Although we have accumulated quite a few degree days for common stalk borers, nowhere in the state has reached accumulation levels for common stalk borer caterpillar movement into corn fields.

White butterfly with black markings on wings, resting on a green leaf.

Cabbage White Butterflies Are Here!

Keep an eye out for cabbage white butterflies in your garden. These butterflies lay eggs on the underside of the vegetable leaves. Once the eggs hatch, their caterpillars feed on cabbage, broccoli, Brussel sprouts, cauliflower, kale, turnips and radishes.

Seecorn maggot larva feeding on a seed in a field.

Seedcorn Maggot Degree Day Activity Estimates: May 20, 2021

Seedcorn maggots can be an early-season pest of corn and soybean in South Dakota, typically affecting crops that are emerging or have recently emerged. Seedcorn maggots can cause direct loss by destroying planted seeds.

Three grassland insects. From left: white grub, dung beetles and Dakota Skipper Butterfly.

Rangeland Insects Are Critical Indicators of System Health

Insects, in general, may offer more indication of rangeland health than any other type of organism. They serve as key building blocks that other organisms depend on.

Yellow wireworm on an orange sweet potato.

Wireworms in the Garden

With warming soil temperatures, overwintering wireworms have become active throughout South Dakota. Wireworms are soil-dwelling insects that can be pests of germinating seeds, seedlings and root crops.

An apple near a list showing foods that are high and low within the Glycemic Index.

The Connection Between Diet and Acne

Acne vulgaris is one of the top skin conditions in the United States, impacting around 40 to 50 million people. Attention around the connection between diet and acne has been the focus of new research, specifically around high-glycemic diets.

Two producers moving cattle out of a shelter.

Biosecurity for Beef Cow-Calf Operations: Managing the Entry of New Animals

Infectious disease can impact cow-calf operations in dramatic ways. These steps should be considered the minimum standards for introducing new animals into cow-calf operations to avoid the spread of infectious disease.