為害柑橘枝葉及果實之粉介殼蟲類

Abstract

為害柑橘枝葉及果寶之粉介殼蟲類有球粉介殼蟲，橘粉介穀蟲、變葉木粉介殼蟲及長尾粉介殼蟲等4種。前2種為害柑橘最烈，每年用於防治此等粉介殼蟲之藥劑及人工，佔防治柑橘病蟲害中最多一項之支出。茲將有關此領粉介殼蟲之形態、生活習性及近年來防治實驗結果， There are 4 species of mealybugs attacking citrus foliage and fruit on this Island recorded namely Nipaecoccus filamentosus (Cockerell) , Planococcus citri (Risso), P. lilacinus (Cockerell) and Ferrisiana virgata (Cockerell). The first 2 mentioned mealybugs are the major citrus insect pests. Synonyms, distribution and host plants are breifly noted under each species but morphology, biology and natural enemies of Nipaecoccus filamentosus (Cockerell) are described more completely.