Aphid invasions, swarms of Asian lady beetles and torrential downpours have attacked students this semester. This chain of out-of-the-ordinary events all began with the sudden infestation of soybean aphids as they migrated from soybean fields to buckthorn fields. The Daily Illini reported on Sept. The aphids were not a threat to the campus, so pest control was not practical or recommended to remove the winged migrants, said Phil Nixon, Extension entomologist with the Department of Natural Resources and Environmental Sciences. The Daily Illini reported on Oct. The lady beetles fed off the soybean aphids, which allowed them to reproduce in copious amounts, he added.
There are Actually ‘Bad’ Ladybugs, and You Need to Watch Out for Them
Harmonia axyridis - Wikipedia
Alpine WSG Insecticide. Lady bugs surrounding and invading your home by the thousands? It's not lady bugs, it probably the Multi-Colored Asian Lady beetle. The Multi-colored Asian lady beetle Harmonia axyridis are sometimes mistaken for ladybugs or lady bird beetles, and are familiar insects in many parts of the United States. For the most part, Asian lady beetles are beneficial predators that eat aphids, scale, insects, and many other pests that injure plants in gardens, landscapes and agricultural settings. However, in many places of the midwest and eastern USA, the Multi-colored Asian lady beetle has become a household pest.
Fact : Ladybugs and lady beetles and ladybird beetles are all different names for the same thing. Fact : There are Asian lady beetles in soybean fields, but also many other places including trees and, gardens. Myth : Soybean harvest causes multicolored Asian lady beetles to migrate to town and to houses. Fact : Day length and temperatures trigger migration - expect swarms of beetles on first warm days after frost. Soybean plants lose their leaves, and therefore any aphids the lady beetles might be eating long before harvest.
The small, ladybug-like insects that seem to be swarming everywhere lately are looking for some nice central Illinois homes where they can spend the winter, an expert says. Click inside for tips on dealing with them. In their native land, Asian lady beetles would normally winter in the mountains, but since this area is bereft of high peaks, they are looking for the next best thing — big, two-story white farmhouses, for instance, said Mike Roegge, a crop systems educator with the Adams-Brown unit of the University of Illinois Extension Office.