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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.
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.
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.
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.
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.
2023 USDA Plant Hardiness Zones
Winter and spring are a great time for planning new garden and landscape designs. Learn how recent updates to the USDA Plant Hardiness Zones may have South Dakota gardeners feeling extra adventurous when selecting new plants for their gardens this season!
2020 Plant Disease Summaries for Small Grains
A number of field trials were implemented in the 2020 growing season with the general objective of assessing various disease management practices suitable for South Dakota growers and the Great Plains.
How Do I Keep Insects From Destroying My Garden Produce?
It is not unusual to see insects in a garden during the fall, but it can be frustrating to watch nearly ripe produce be destroyed by insects before it can be picked.
Herbicide Residual Effects on Cover Crops after Wheat
Fact sheet about herbicide residual effect on cover crops after wheat.