Insect & Pests
All Insect & Pests Content
Army Cutworms Returning to South Dakota
A black light trap at the SDSU West River Research Farm near Sturgis has started capturing army cutworm moths. This indicates that the moths that migrated west this spring are returning to the South Dakota plains to lay eggs.
Wait, These Wasps Were Here the Whole Time?
Wasps receive attention no matter the time of year, but they are especially noticeable in late summer and early fall. Learn some expert tips for identifying and managing different types of wasps in your home and garden.
Red Sunflower Seed Weevil Populations Are Active in South Dakota
Red sunflower seed weevils are active in South Dakota sunflowers. Scouting should begin for fields that are going to be reaching the R5 stage within the next week.
Plant Bugs Active in Alfalfa
Plant bugs are active in alfalfa fields across the state. A common question we receive from producers is why some of these bugs look so different from others.
Corn Rootworm Adults Are Active in South Dakota
We have been observing a lot of corn rootworm adults in South Dakota. The emergence of these primarily underground pests can provide insight into field population levels and the potential for future root injury.
True Armyworm Caterpillars Observed in South Dakota Wheat
Wheat harvest is underway in South Dakota, and one of our seemingly annual pests has been observed in wheat fields. While scouting last week, we observed small populations of true armyworms in wheat in Northeastern South Dakota.
What Is Eating the Leaves on My Potato Plants?
Colorado potato beetles are currently active in South Dakota. These beetles are a major pest of potatoes and other members of the nightshade family, including tomatoes, peppers and eggplants.
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.
Sod Webworms Causing Issues in Stressed Lawns
Sod webworm moths have been very active during the last couple of weeks. These small moths are an indicator of the potential for lawncare issues to come.
True Armyworm Caterpillars Spotted in South Dakota
While scouting this week we observed some very small true armyworm caterpillars. Every year these caterpillars pose a threat to wheat fields, and the best way to stay ahead of them is to start scouting before defoliation is done.