Content by Philip Rozeboom
Alfalfa Weevil Activity Prediction Update: May 19, 2023
Forecasted weather conditions are ideal for alfalfa weevil activity, and early detection of feeding activity will prevent extensive defoliation.
Alfalfa Weevil Activity Prediction Update: May 15, 2023
During the last week, the entire state reached enough degree days to have active alfalfa larvae. In areas with the highest accumulation of degree days, alfalfa should be scouted to ensure that alfalfa weevils don’t cause extensive defoliation.
Army Cutworms Are Active in South Dakota
Army cutworms can rapidly reduce winter wheat stands if large populations are present. See our latest management recommendations based on observations from around the state.
Time to Start Scouting for Black Grass Bugs
In central and 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.
Alfalfa Weevil Activity Prediction Update: May 4, 2023
With warmer temperatures during the last week, there was an increase in the accumulation of degree days for alfalfa weevils. See our latest observations from around the state.
South Dakota Overwintering Bean Leaf Beetle Predicted Mortality: 2022-2023
With bean leaf beetle emergence rapidly approaching, it’s important to start thinking about early-season management of the overwintering population. View our latest recommendations based on observations from winter 2022-2023.
Winter Ticks Showing Up on Horses
Ticks aren’t only active during the growing season in South Dakota. Winter ticks can be commonly found on horses and cattle. Learn some expert tips for identifying and managing them before they become a problem.
An identification guide for Arthropods of Human Health Concern in South Dakota
Pictorial guide for arthropods of human health concern in South Dakota
Planting Date May Be Our Most Powerful Tool for Red Sunflower Seed Weevil Management
In the last few years, red sunflower seed weevils have been the most economically damaging insect pest in South Dakota. To identify alternative management options, researchers at SDSU and the USDA-ARS lab in Fargo, ND conducted a study evaluating early planting dates as a potential strategy to reduce red sunflower seed weevil infestations.
Biology and Management of Squash Vine Borer in the Garden
Squash vine borer larvae are serious pests of pumpkins, zucchini and other winter squashes. Learn how to identify and manage infestations before they impact plant health and productivity this fall.