As far as bugs go, ladybugs have a pretty sterling reputation. Seen as a sign of good luck, and often appearing in children's books and cartoons, these red- and black-spotted insects have plenty of great qualities: They prey on pests like aphids, spider mites, and mealy bugs that would otherwise destroy your plants and gardens. But, there's actually a bad kind of ladybug out there—ones that can bite and be aggressive, are harmful to dogs, invade your home, and leave behind a foul-smelling yellowish secretion that can stain walls and furniture.
Dorothy is a Master Gardener, former newspaper reporter, and the author of several books. All ladybugs have gluttonous, insatiable appetites for aphids and other insects, and that's a good thing. Some of them, however, can be more of a nuisance than a benefit.
A University of Georgia researcher studying invasive ladybugs has developed new models that help explain how these insects have spread so quickly and their potential impacts on native species. In recent years, some people have noticed swarms of ladybugs amassing in the fall, even infesting their homes. These are Asian lady beetles, insects native to eastern Asia, introduced to the U.
Hundreds, sometimes thousands, of ladybeetles are gathering around homes and other structures as autumn gets under way in Michigan. This ladybeetle, or ladybug, is the Multicolored Asian Ladybeetle, Harmonia axyridis, and it is driving people buggy throughout the state. During the fall, the beetle congregates on the sides of buildings, enters homes and lands on folks as they walk through their yards, and it sometimes bites.
I don't yet have a garden maybe next year--if my two-year-old will allow it! I do have about 30 houseplants, plus herbs and some experiments that are going fairly well—like avocado and mango pits that I've grown into small trees. I grow it all indoors in the winter and put some plants out for the summer.
We hate spam too, we'll never share your email address. Have you ever seen orange ladybugs? Although most native ladybugs are harmless and good for the environment, the recently introduced Asian Lady Beetle harmonia axyridis is an exception.
Asian Lady Beetle. A native of Asia, this beneficial ladybug was imported in the early 's to help naturally control pest populations that were damaging such crops as alfalfa, pecan and citrus trees. The beneficial aspects of this ladybug have been quite useful in reducing the need for pesticides and have relieved the hardwood forests of many disease carrying aphids, mites and scale insects.
Many people believe that there is only one species of ladybug native to North America and that you can tell how old ladybugs are by counting the spots on their backs. In reality, North America had has over native species of ladybug, also known as lady birds or lady beetles. Ladybugs may also vary slightly in colour, ranging from red to orange.
Outdoors, Asian lady beetles helpfully feed on plant pests like aphids and many others. From September to November, they move indoors to overwinter, crawling along windows and walls. Small cracks around windows and door frames provide entry points.
Or more specifically, the Asian lady beetle. Though most ladybugs make their homes outdoors, this often uninvited guest will happily bunk with you over the winter. Laybugs, also known as Ladybirds or Ladybird beetles, were named after the Virgin Mary. Some sources claim that the various names may have even older roots.