Abstract: The white fly Aleurotrachelus camelliae Kuwana is one of the most destructive pests of the oil tea tree Camellia oleitera Abel. in China. There is one generation per year in Cheking province. The larvae overwintered on the leaves of the oil tea tree. The adults emerge and oviposit in April. Hatching occurs in late June. The larva has two instars and the second instar causes serious damages to the oil tea tree. Field survey showed that the fungus Aschesonia sp. Had a great pathogenecity to the first instar larvae.Spraying 25% imidan emulsion with a dilution of 1:2000; and 50% malathion emulsion with 1:1000 in late June to late July gave good results.