Images Dated 23rd October 2002
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Choose from 22 pictures in our Images Dated 23rd October 2002 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
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Featured 23 Oct 2002 Print
Spider mite, SEM
Spider mite. Coloured scanning electron micrograph (SEM) of a spider mite (Tetranychus sp.). It is an economic pest and plant parasite, found on vegetable crops, fruit trees and flowers. It feeds on the leaf sap, which causes leaves to mottle, turn yellow and fall off. The spider mite is named due to its ability to spin a web, which it does across a leaf surface that secures and protects it against predators. Their numbers can be controlled with organophosphorus pesticide, although some resistance has developed. Another method is biological control, using a natural predator, such as gall midge larva (Feltiella acarisuga). Magnification: x135 at 6x7cm size
© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY
