Abstract
Males of Tetranychus urticae Koch are strongly attracted to pharate females. The male will remain and guard the pharate female until emergence of the adult, when mating occurs. The sesquiterpene alcohols farnesol and nerolidol were previously reported as male attractants of the twospotted spider mite. The monoterpene alcohol citronellol was isolated and identified from pharate females. Males were highly attracted to 10 ppm synthetic citronellol in bioassays.

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