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应用柑橘小实蝇性引诱剂监测,截止2007年底证实全省11市67县(市、区)都有柑橘小实蝇发生分布。其发生以9～11月间虫量大,局部地区晚熟梨、早中熟柑橘等果实被害率达50%。受虫源、食物源和气候等因素影响柑橘小实蝇的生存与世代繁殖,5月份前难以诱到成虫,而9～11月间局地虫量剧增和暴发为害,是6～9月田间食料丰富、加上外来虫源迁入和气候适宜等优越条件导致种群数量快速增加的结果。通过采取“治前控后”的策略,对受害地区实施大面积挂瓶诱杀和清理虫果为主的综合防控,取得了较好的保护效果。
Application of citrus fruit fly attractant monitoring, as of the end of 2007 confirmed that 11 provinces 67 counties (cities, districts) citrus fruit fly occurrence distribution. Occurred in September to November large amount of insects, pears pear in some areas, early maturing citrus and other fruit damage rate of 50%. By the source of insects, food sources and climate and other factors affect the survival and generation of citrus fruit fly survival, it is difficult to induce adults before May, and from September to November the sharp increase in local pest and outbreak of damage is June to September The abundance of foodstuffs in the field, together with the favorable conditions such as immigration of exotic insects and favorable climatic conditions, have led to a rapid increase in population numbers. By adopting the strategy of “controlling before and after controlling”, the comprehensive prevention and control of the large area of hanging bottle trapping and cleaning fruit and insect pests in the affected areas has been achieved and a good protection effect has been achieved.