Tetranychus urticae - Hutchinson encyclopedia article about Tetranychus urticae Printer Friendly
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red spider mite
(redirected from Tetranychus urticae)

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red spider mite

Tiny reddish mite, genus Tetranychus (not a true spider), that causes much damage to plants, especially those in dry greenhouses, by sucking the sap from the leaves, causing them to become yellow and die. It is prevented by keeping the atmosphere moist, and is killed by fumigation.



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The principle was demonstrated in the 1980s when the Division of Entomology imported a naturally-occurring, pesticide-resistant predatory mite Phytoseiulus persimilis from California that controlled infestations of the two-spotted mite Tetranychus urticae in Australian apple and pear orchards.
 
 
 
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