蚜小蜂和粉虱座壳孢对烟粉虱的控制作用研究

应用生态学报 ›› 2003, Vol. ›› Issue (12): 2251-2254.

蚜小蜂和粉虱座壳孢对烟粉虱的控制作用研究

邱宝利, 任顺祥, 肖燕, Nasser Said Mandour

华南农业大学资源环境学院生物防治研究室, 广州 510642

收稿日期:2002-12-23 修回日期:2003-03-28 出版日期:2003-12-15
通讯作者: 任顺祥
基金资助:
国家自然科学基金项目(30270901);国家“十五”科技攻关项目(2001BA509B0604);广东省自然科学基金资助项目(010312,032261)

Effectiveness of Eretmocerus sp.and Aschersonia aleyrodis in controlling Bemsia tabaci populations

QIU Baoli, REN Shunxiang, XIAO Yan, Nasser Said Mandour

Entomology Department, South China Agricultural University, Guangzhou 510642, China

Received:2002-12-23 Revised:2003-03-28 Online:2003-12-15

摘要/Abstract

摘要： 研究了烟粉虱两种寄生性天敌桨角蚜小蜂(Eretmocerus sp.)和粉虱座壳孢(Aschersonia aleyrodis)单独使用和联合使用时对烟粉虱种群的控制作用.结果表明,在单独进行控制时,在一个世代内按5×10⁶个孢子·ml^-1喷施粉虱座壳孢2次,对烟粉虱种群的控制作用达95.74%,按每株植株3头雌蜂的密度释放桨角蚜小蜂2次,对烟粉虱种群的控制作用达57.58%.在两者联合控制时,一个世代内喷施粉虱座壳孢2次,再释放桨角蚜小蜂1次或2次,对烟粉虱种群的控制作用达97.02%～97.91%,烟粉虱种群增长趋势指数低于1,种群数量逐渐下降.联合使用时,桨角蚜小蜂和粉虱座壳孢间无消极影响.

Abstract: The effectiveness of Eretmocerus sp. and Aschersonia aleyrodis in controlling Bemisia tabaci populations on cucumber were determined in separated and combined greenhouse experiments. The results showed that after spraying A.aleyrodis(5×10⁶ spores per ml,twice per generation) and releasing Eretmocerus sp. (3 female per plant,twice per generation),95.74% and 57.58% of whitefly populations were controlled,respectively. However,when the two natural enemies were used together with the same rate mentioned above (A. aleyrodis spraying twice followed by releasing Eretmocerus sp. once or twice in one generation),97.02%～97.91 % of whitefly populations were controlled. Moreover,the increasing index of whitefly population (I) subjected to both natural enemies together was below 1,indicating the substantial reduction in whitefly population. The combined treatments provided a better control effect of whitefly than separated ones,and there was no contradicted effect between both natural enemies.

中图分类号:

Q968.1

邱宝利, 任顺祥, 肖燕, Nasser Said Mandour. 蚜小蜂和粉虱座壳孢对烟粉虱的控制作用研究[J]. 应用生态学报, 2003, (12): 2251-2254.

QIU Baoli, REN Shunxiang, XIAO Yan, Nasser Said Mandour . Effectiveness of Eretmocerus sp.and Aschersonia aleyrodis in controlling Bemsia tabaci populations[J]. Chinese Journal of Applied Ecology, 2003, (12): 2251-2254.

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