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The beautiful ladybug is not native to America. It was brought here from Australia at the end of
the 19th century. It was transplanted here because of its appetite for the cottony cushion scale
which threatened the citrus groves of California. The importation of the beatle was a great
success saving the entire citrus industry, which flourishes today.
The food supply of the ladybug larvae consists of aphids, asparagus beetle eggs, Colorado potato
beetle, grape root worm, bean thrips, alfafa weevil, and chinch bugs. The adult ladybug feasts on
aphids and insect eggs. The larva are the most useful in controlling the bad insect population in
the garden.
The ladybug is a complete metamorphous insect. Its life begins in the spring as one of about 200
eggs in the crevice of tree bark or the underside of a protected leaf. The egg hatches into a
tiny larvae which quickly makes the nearest aphid its first meal. With its voracious appetite, it
has been known to consume up to 40 aphids in an hour. The larvae becomes fully grown in about 20
days and pupates after attaching itself to a stem or leave. It emerges as the beautiful black
spotted adult ladybird beattle.
The ladybug hibernates to winter over and may gather in great masses beneath loose bark, boards
or some other protected place.
The lovely ladybug can be purchased commercially and introduced into the garden as adults. If the
weather is warm and sunny, the beatles will mate and lay eggs. About 15 days after that you
should have a new generation of larvae at work protecting your plants.
Gardening Sitesyou can use to help make your garden grow!
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Need information on trees and tree care? Visit the Web site of the International Society of Arboriculture. Click on Publications then Tree Care Consumer Guide. Topics of interest include buying high quality trees, trees and turf, planting a new tree, pruning young and mature trees, and information on the services provided by an arborist. The National Arborist Association also offers tree care tips. |
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Gardening Ideas Bloom on the Web
Strawberries
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House Plant Propagation is an excellent article from Michigan State University Extension.
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