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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.
The Poinsettia and Its Relatives: Exploring Unique Euphorbia Species
Euphorbias are versatile plants, with species suitable for both indoor and outdoor environments. Whether used as decorative houseplants, or as garden perennials, these plants offer a unique aesthetic, and require minimal care.
Common Stalk Borer Activity Estimate: May 24, 2024
Throughout South Dakota, common stalk borer caterpillars are still active in alternative weed and grass hosts.
Common Stalk Borer Activity Estimate: May 29, 2025
Based on degree day estimates for common stalk borer caterpillar activity, no scouting in corn fields is necessary at this time.
Corn Seed Treatment Effects on Soil Microbial Activity and Grain Yield at the 2022 Soil Health School
A recent research project at the South Dakota Soil Health Coalition's Soil Health School investigated the impact of omitting corn seed treatments on plant stands, microbial activity and grain yields. The findings may surprise you!
Redheaded Flea Beetles Are Active in South Dakota
Redheaded flea beetles are now active in soybean. Although they haven’t caused significant defoliation yet, their activity should be monitored, as other defoliating insects are also present in soybean.
Watch Closely for Weed Emergence
Cool, dry conditions have slowed weed emergence and growth, but dry conditions also have limited the activation of preemergent chemicals. Given this scenario, fields need to be scouted closely to ensure that weeds do not get away.
Seedcorn Maggot Degree Day Activity Estimates: May 18, 2022
Degree day accumulations continue to approach the peak emergence of the second generation of seedcorn maggots. See our latest management recommendations based on this activity.
Seedcorn Maggot Degree Day Activity Estimates: May 12, 2022
For most of South Dakota, peak emergence of the overwintering seedcorn maggot population has passed. See our latest activity estimates for the second generation.
Flea Beetles Already Active In Gardens
It may seem early, but flea beetles are already active in gardens in South Dakota. Adult beetles feed on leaves and stems, and their feeding will leave behind a multitude of small, irregular holes or pits.