The South Dakota Pest Management guides are now available for free. The guides offer recommendations for controlling weeds, insects, and diseases in a variety of South Dakota crops.
All Corn Insects Content
SDSU Extension publishes the South Dakota Pest & Crop Newsletter to provide growers, producers, crop consultants, and others involved in crop production with timely news pertinent to management of pests, diseases, and weeds in South Dakota.
Several counties in South Dakota are experiencing dryer than normal conditions, therefore, it is important to monitor crops for spider mites, as they thrive during periods of dry weather.
Most of Eastern South Dakota is experiencing very low grasshopper populations. However, this is not the case for many areas in Central and Western South Dakota.
Small populations of aphids are starting to show up in corn fields, which could be problematic if the populations continue to grow. During dry seasons, they can have a greater impact on corn.
As wheat harvest is underway it is important to ensure that grain bins are prepared in the best possible manner to prevent insect infestations. There are seven steps that can be taken to help reduce the chances of having infested grain.
Both European corn borer (Ostrinia nubilalis) and corn earworm (Helicoverpa zea) are active in corn fields. Sometimes the caterpillar activity and identity of these two species can be confused.
Last week, we noticed the emergence of northern corn rootworm adults in South Dakota. The adults of both the northern and western corn rootworms generally emerge in mid-July and remain active until the first hard frost.
Over the weekend, South Dakota experienced strong southerly winds, which brought warm temperatures to the state. In addition, these winds also brought insect pests north, which included moths of the western bean cutworm.
August 25, 2020
The 2020 South Dakota Pest Management Guides are now available for free on the SDSU Extension website.
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