Abstract
Citrus Silver Mites (CSM) Polyphagotarsonemus latus (Banks) in Indonesia has been known as a major pest of tea plant, sesame and jatropha. Recently CSM was found attacking citrus plant. Plant damage caused by mites on the leaf buds are curved, curly shoots and dead ends. This condition was found in the screen house of some nurseries for several citrus varieties. Because of the damage, the control anticipation based on bioecology must be taken seriously. The study was conducted on the biology and development of CSM on three commercial citrus species that were Tangerine, Sweet Orange and Mandarin. The results showed that in general, CSM life cycle on three citrus species was not significantly different, which was about 5 days. Pre oviposition period, oviposition period, longevity of adult female, post oviposition period did not differ between the three citrus species. The fecundity of CSM on Sweet Orange was higher than that of Tangerin and Mandarin which were respectively 41.22 ; 26.22 and 29.32 eggs per female. Sex ratio was 1:4,75 on Tangerin, Sweet Oranges and the Mandarin were respectively 1:405 and 1:4.68.
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