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A yellow beetle with a black head, and square black markings on its back standing on a soybean leaf.

2021 South Dakota Overwintering Bean Leaf Beetle Predicted Mortality

Bean leaf beetle emergence is approaching, and it’s important to start thinking about this pest. Once soybean begin emerging, overwintering adult beetle populations will move into soybean fields and begin feeding on seedlings.

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

Alfalfa Weevil Activity Prediction Update: April 15, 2021

Due to the cooler temperatures, we didn’t accumulate a lot of degree days for alfalfa weevils during the last week. However, there are some areas in South Dakota where alfalfa weevils may be active.

Dirt patch in the center of a pasture caused by white grub feeding

Do You Have True White Grubs in Your Pasture or Rangeland?

Grub damage to pastures and rangeland is often observed in South Dakota. From past observations, some of the heaviest infestations in the state are located near the Missouri River.

Adult twospotted spider mites crawling on webbing that is attached to a leaf.

Dry Conditions Could Lead to Early Twospotted Spider Mite Infestations

Although it isn’t an insect, the twospotted spider mite is an occasional pest of crops in South Dakota, and its populations can rapidly increase during dry conditions.

Young corn emerging in a no-till field.

Corn Planting Populations: A Deeper Dive

Corn is grown all across South Dakota, and the optimal target population varies depending on location. In a nutshell, there is a lot more to seeding population selection than what meets the eye.

Field with field peas and blue sky with fluffy white clouds

Production and Utilization of Field Peas in South Dakota

Guide to field pea production and utilization in South Dakota

a field of green plants

SDSU Extension to Host Final Pesticide Education Opportunity

March 31, 2021

As opportunities to obtain 2021 Private Applicator Certification in South Dakota wind down, SDSU Extension is offering a final online pesticide education course Thursday, April 8 from 6–9 p.m. CST.

Rows of soybean growing in corn residue in a diverse, no-till crop rotation.

Economics of Different Crop Rotation Systems in South Dakota

Economic returns are an important factor to consider when selecting crop rotation systems.

Female rancher standing in front of a cowherd.

The Power of Women as AgVocates Rescheduled to March 4 and 5

February 08, 2022

The Power of Women as AgVocates Conference has been rescheduled for March 4-5, 2022 in Fort Pierre, South Dakota at the Casey Tibbs Rodeo Center and the Missouri Avenue Event Center in Pierre.

A soybean root with several small white cysts growing on it.

Scout and Soil Test for the Soybean Cyst Nematode 

Soybean cyst nematode (SCN) is the main soybean production constraint in South Dakota. Soybean plants can be infested with SCN but may not display visible symptoms.