This week we received a report of insects infesting a soybean field. However, they weren’t insects that we generally think of when the term "soybean insect pests" comes up.
Content by Adam Varenhorst
The short answer to the title of the article is "yes." Both the European mantis and the Chinese mantis can be found in South Dakota. As their names indicate, neither species is native to North America.
For 2019, we have either received reports of very high grasshopper numbers or of very low or nearly absent populations. Most reports of high populations have originated from areas near rivers and other waterways. This suggests that the rich foliage along the banks of waterways has provided excellent habitat for grasshoppers and has boosted their populations in those areas.
During 2019 we have received varying reports regarding grasshopper populations. Many reports have indicated that grasshopper numbers are down. However, we have also received reports of very large grasshopper populations in some areas of South Dakota. So why such a difference?
Squash bugs are now becoming a headache for gardeners across South Dakota. Most of the reports so far have been on zucchini plants, but squash bugs feed on pumpkins and other types of squash as well. Injury caused by extensive feeding appears as wilting and may result in the death of infested plants.
Winter wheat planting will soon be starting and a number of decisions will have to be made for a successful winter wheat crop, including: the time of planting, the choice of variety to be planted, disease and pest management decisions and crop insurance.
Although many soybean fields are behind schedule, so are the soybean aphid populations. In many reported areas, there are hotspots within a field where a few soybean plants may be heavily infested.