柑橘木蝨之生物防治 1﹒亮腹釉小蜂（Tamarixia radiata）之引進繁殖與釋放試驗

Abstract

柑橘木蝨（Diaphorina citri）為柑橘立枯病之媒介昆蟲，法屬留尼旺島曾利用亮腹釉小蜂（Tamarixia radiata）防治柑橘木蝨，成效卓著。省農業試臉所為減少木蝨的傳病機會，從該島引進該寄生蜂。經室內檢疫與增殖後，於民國73至77年共繁殖該釉小蜂21,164隻，分別在農試所甜橙以及臺彎12縣市共39處月橘綠籬上釋放。目前亮腹釉小蜂已在全省立足。其對於本省木蝨寄生情形以臺中地區為最好，其寄生率顯著超越木蝨本地天敵，紅腹跳小蜂（Diaphorencyrtus diaphorinae）。釉小蜂在本省其他釋放地區也十分活躍，受本地重複寄生蜂之影響不超過1.0％。 The citrus psylla, Diaphorina citri, is a vector of citrus Likubin in Taiwan. It was reported to be effectively controlled by its nymphal parasitoid, Tamarixia radiata in Reunion Islands. Taiwan Agricultural Research Institute introduced the parasitoid from Reunion Islands for the control citrus psylla to reduce the transmission of citrus Likubin. A total of 64 adult parasitoids in 4 shippments was obtained from 1983 to 1986. Then totally 21,164 adults of T. radiata were propagated and released to 39 citrus orchards and common jasmine orange (Murraya paniculata) bushes in 12 counties during 1984－1988. Results revealed that T. radiata has successfully established in this island. T. radiata is significantly predominence over the indigenous, Diaphorencyrtus diaphorinae in central Taiwan. Fortunately, the hyperparasitism of the introduced parasitoid is bellow 1.0% at the present.