作　　者： ; ; ; ;

机构地区： 华南农业大学

出　　处： 《华南农业大学学报》 2005年第1期50-52,共3页

摘　　要： 通过田间笼罩、排除天敌等生物因子的作用,建立了荔枝蒂蛀虫实验种群生命表.分析结果表明,荔枝蒂蛀虫产卵期可持续11d.荔枝蒂蛀虫雌虫产卵量因幼虫取食寄主器官不同而不同,以妃子笑果实为食的可产卵160余粒,以嫩梢为食的仅产卵99粒,且卵孵化率较低,果期、梢期分别为80%和81%.果期幼虫死亡主要是生理性和钻蛀荔枝果皮过程死亡所致,死亡率在10%以下.蛹期不羽化率均较高,果期、梢期分别为15%和33%.在妃子笑果期和梢期,荔枝蒂蛀虫实验种群趋势指数分别为43 68和25 12. The litchi fruit borer Conopomorpha sinensis Bradley is one of most serious pests in litchi orchard. The life tables of the litchi fruit borer population feeding on litchi variety Feizixiao were constructed according to the effects of the active factors in different development stages of the litchi fruit borer in this paper. The results showed that the fecundity of the litchi fruit borer feeding on litchi fruit were 160.3 eggs/female obviously higher than 99.6 eggs/female feeding on young shoots. The survival rate of litchi fruit borer feeding on litchi young shoots were 96.4%, while the survival rate was 90.7% for the borer feeding on litchi fruits. The life tables of litchi fruit borer feeding on litchi shoots and fruits in liboratory were constructed according to the effect of the active factors at different development stages of the litchi fruit borer. The trend indices of population of litchi fruit borer were 43.68 and 25.12 respectively at feeding periods of fruits and shoots.

关 键 词： 荔枝蒂蛀虫 实验种群生命表 妃子笑荔枝 幼虫 产卵期 卵孵化率 嫩梢 生物因子 生理性 死亡率

领　　域： [农业科学] [农业科学] [农业科学] [农业科学]