Content by Adam Varenhorst
Common Stalk Borer Activity Estimate: May 26, 2022
Not much has changed in terms of degree day accumulation for common stalk borers since last week. Cold low temperatures prevented most of the state from accumulating very many degree days.
Army Cutworms Beginning To Take Flight
Army cutworm moths were collected in a black light trap near Sturgis this week. This is an indicator that army cutworm caterpillars have finished feeding on available vegetation.
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.
Ground Beetles: Predators That Provide Benefits in Agricultural Landscapes
For agroecosystems and gardens struggling with weeds and insect pests, ground beetles can be a beneficial predator. Learn the benefits they can bring to your landscape this growing season.
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.
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.
Damsel Bugs: Beneficial Predators in Managed and Agricultural Landscapes
It is important to remember that not all insects are pests. Damsel bugs are beneficial predators that feed on soft-bodied insects, including many agricultural and garden pests.
Black Grass Bugs May Cause Issues if Drought Persists
In western South Dakota, black grass bugs are a common spring forage pest that can cause considerable damage during periods of drought. Learn how to monitor and manage this pest to protect your forages this spring.
South Dakota Overwintering Bean Leaf Beetle Predicted Mortality: 2021-2022
Bean leaf beetle emergence is approaching, so it’s important to start thinking about this pest. Knowing the number of days that the air was cold enough for bean leaf beetle mortality allows us to estimate the emerging populations in the spring.