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

Common Stalk Borer Activity Estimate: April 28, 2022

With corn planting underway in some parts of South Dakota, it’s time to start evaluating degree days for common stalk borer caterpillars. As temperatures eventually warm up, this pest can become a problem, especially around the borders of fields.

Seecorn maggot larva feeding on a seed in a field.

Seedcorn Maggot Degree Day Activity Estimates: April 29, 2022

Seedcorn maggots can be an early-season pest of corn and soybean in South Dakota. View our latest seedcorn maggot activity estimates based on degree day accumulation for various locations throughout South Dakota.

Group of farmers and ranchers attending a drought meeting.

SDSU Extension to Host Drought Management Meetings

April 29, 2022

SDSU Extension will host drought management meetings across South Dakota May 10-12.

A sprawling, planted field with young crops emerging

Crop Rotation in Farm Management 

Crop rotation has long been considered an important farm practice. In 2013 producers had to stray from their well thought out crop rotations when the winter wheat crop in South Dakota failed.

soybean plants showing difference in pods

Soybean Planting Population: A Review

There have been reports in recent years that agronomists in states such as Iowa, Nebraska and Wisconsin have observed success when reducing soybean planting populations.

Moth with green metallic wings and an orange body resting on a green leaf.

Squash Vine Borer Activity Estimates: April 29, 2022

Squash vine borers can be a serious garden pest. If left unmanaged, their activity can cause a rapid decline in the health and productivity of zucchini, squash, pumpkins and other winter squash.

Winter wheat emerging from a planted field.

Double-Crop after Wheat?

Two crops in one year may sound tempting, and for some crop species is possible, but before doing so, producers should consider possible crops and compare the potential benefits with the drawbacks.

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

Common Stalk Borer Activity Estimate: May 5, 2022

Cool temperatures during the last week prevented the fast accumulation of degree days for common stalk borers. This pest can become a problem, especially around the borders of fields, as temperatures eventually warm up.

Seecorn maggot larva feeding on a seed in a field.

Seedcorn Maggot Degree Day Activity Estimates: May 5, 2022

Corn and soybean planted during cool conditions can be at risk for seedcorn maggot infestation. Stay ahead of infestations by viewing latest activity estimates from around the state.

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

Alfalfa Weevil Activity Prediction Update: May 5, 2022

One of the insects we monitor for using degree day accumulation is the alfalfa weevil. With warmer temperatures in the upcoming forecast, the need to scout for alfalfa weevil activity will increase.