四川果蔬实蝇调查

A SURVEY OF FRUIT FLIES ON VEGETABLES AND FRUITS IN SICHUAN PROVINCE

1982～1992年对四川省57个县(市)90个点的果蔬实蝇种类、分布、寄主及危害情况的调查表明,四川省果蔬实蝇有13种.其中,属全省性分布的5个种,局部分布的8个种.瓜果被害率为10%～20%,茄果类为20%～40%,柑桔为20%～30%,芒果与桃则达50%左右.主要优势种群有柑桔大实蝇、蜜柑大实蝇、南亚寡鬃实蝇、桔小寡鬃实蝇、瓜寡鬃实蝇和黑颜寡鬃实蝇;主要为害种为柑桔大实蝇、蜜柑大实蝇、桔小寡鬃实蝇和瓜寡鬃实蝇.

A survey was made of the species composition of fruit flies in Sichuan province and of their distribution,host range and harmfulness at 90 localities in 44 counties/cities in 1982-1992.Altogether 13 species were identified,of which 5 were found distributed all over the province and 8 had only local distribution.The percentage of injury caused by them were 10-20% for melons,20-40% for tomato,eggplant and hot pepper,20-30% for ci- trus fruit and about 50% for mongo and peach.The dominant species of the pest popula- tion were Tetradacus citri Chen.,T.truneonis (Miyake),Dacus (Bactrocera) dorsalis Hendel, D.cucurbitae Coquillett and D.(Zeugodacus) diaphorus (Hendel).The main pests attacking fruits and melons are T.citri Chen.T.tsuneonis (Miyake),D.dorsalis Hendel and D. cucurbitae Coquillet.