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aphid |
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aphid an insect of the order Hemiptera. They parasitize many plants during the warm seasons. Of interest in animal health are the black aphids, Aphis craccivora, which can exist in very large numbers on burr trefoil, Medicago polymorpha, and may stimulate the production of phytoallexins in the plant which then photosensitize animals grazing the infested pasture. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The peach tree feeds the aphids, and the aphids feed the ladybug larvae, and together all three species flourish; the peach tree eventually bears delicious fruit. Anticipated to be offered commercially for the 2009 planting season, the soybeans with the aphid-resistant trait give farmers another choice for combating yield-robbing aphid infestations. the aphid attack in 2003 added stress in a dry season—a double-whammy that sharply reduced yields. |
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