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期 刊 ：植物保护学报 2007年

关键词：γ-射线辐照处理；刺桐姬小蜂；发育；繁殖；影响；

Keywords:γ-irradiation treatment, erythrina gall wasp, development, reproduction, effect,

摘 要 ：为了探索刺桐姬小蜂Quadrastichus erythrinae Kim的检疫处理方法,研究了γ-射线辐照处理对刺桐姬小蜂发育和繁殖的影响。结果表明,经0.05、0.1、0.2、0.3和0.4kGy γ-射线辐照处理20min后,刺桐姬小蜂幼虫化蛹率和蛹的羽化率均显著降低。成虫活动减弱、寿命缩短,交配次数、怀卵量和产卵量随处理剂量增高而降低,γ-射线辐照处理虫瘿后,刺桐姬小蜂羽化出蜂数和出蜂率随处理剂量增加而显著减少。雌雄成虫对γ-射线的抵抗力不同,在相同剂量辐照处理下,雄虫的死亡率显著高于雌虫。处理剂量越高,性比就越高。

Abstract:The erythrina gall wasp, Quadrastichus erythrinae Kim, is a new invasive important quarantine pest. It has been reported to damage Erythrina spp. seriously. In order to find out the method of quarantine treatment, the effects of the development and reproduction of erythrina gall wasp with γ-irradiation treatment were studied in this paper. The wasps were treated for 20 minutes with 0.05, 0.1, 0.2, 0.3 and 0.4kGy γ-irradiation. The results showed that the percentage of pupation and emergence were reduced notably. The adult longevity was shorted. Their mating times and fecundity were decreased with the dosage increasing. The wasps crawling out emergence holes were decreased with the dosage increasing notably. The percentage of mortality of male was higher than the females with same dosage of γ-irradiation treatment. The sex ratio was interrelated with the dosage of treatment.

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