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Send In the Lady


The Asian multicolored lady beetle, Harmonia axyridis, is easy to identify from its false 'eyes' - twin white football-shaped markings behind the head. In color, the insects range from black to mustard, with zero to many spots. A common U.S. form is mustard to red and has 16 or more black spots. One of the world's most recognizable insects is the ladybug. Ladybugs belong to a family of insects called Coccinellid, with about 5,000 species identified. But this little insect is more than just another pretty face, for the ladybug has been enlisted to fight in the front lines in our eternal war against insect predators. And with a reported 15% of all food and ornamental crops damaged or destroyed by insect pests, we can use all the help we can get.

Biological control is nothing new. For centuries farmers have sought the help of not only ladybugs, but praying mantis, wasps and mites as well. With recent concerns about the overuse of pesticides, there has been a renewed focus on fighting insects with their natural predators. The ladybug is well equipped for the job. In both the larval and adult stages, they prey on many soft-bodied bugs, including aphids and scales.

Like anything else though, you can have too much of a good thing. Nature is a balance, not only on a global, but also on a regional and local level. If the balance is thrown off, unexprected consequences may result. With this in mind, many farmers are using a combination of pesticides and natural insect control. And one of their favorites is the ladybug. Need help getting rid of those aphids? Send in the lady.

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About the Author


Gene MascoliGene Mascoli, JD
Gene Mascoli is a founder and publisher of ScienceIQ.com. He holds a J.D. degree from the University of Santa Clara and a B.A. in English. In 1997 Gene launched ScienceMaster.com, an online science education portal where he brought together his love of writing with his interest in the sciences. Gene collaborated with David Gamon on the popular digital book “The Internet Guide to NASA on the Net” and has also produced two popular science CD-ROMs on astronomy and space science.
ScienceMaster.com

Further Reading
Insects Revealed: Monsters or Marvels?
by Jacques De Tonnancour, Sue Hubbell, Luke Sandford (Translator)


Related Web Links
Biological Control
by Cornell University College of Agriculture and Life Sciences

Pest Cabweb
by CABI Publishing





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