Ladybugs
Ladybugs: (Size= 1/4 inch) There are more than 450 species of ladybugs in North America. Some are native and some have been introduced from other countries. Most North American species are beneficial as both adults and larvae, feeding primarily on aphids. They also feed on mites, small insects and insect eggs, including the Mexican bean beetle, and the squash beetle. Most ladybugs found in gardens are aphid predators. Some species prefer only certain aphids while others will seek out and dine on most any kind of aphid. Some prefer mite or scale species. If aphids are scarce, they'll feed on the eggs of moths, beetles, mites, thrips, and other small insects, as well as pollen and nectar. Not as delicate and refined as they seem, they'll also feed on their own young. Because of their ability to survive on other prey when aphids are in short supply, ladybugs are particularly valuable natural enemies. Ladybugs overwinter as adults, often in aggregations along hedgerows, beneath leaf litter, under rocks and bark, and in other protected places including buildings. In spring, the adults disperse in search of prey and suitable egg laying sites. This dispersal trait, especially strong in migratory species such as the commercially available convergent lady beetle, affects the reliability of released adult beetles.
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