摘要
松毛虫赤眼蜂Trichogramma dendrolimi Matsumura,属膜翅目Hymenoptera、小蜂总科Chalcidoidae、赤眼蜂科Trichogrammatidae,为多种农林害虫卵的小型寄生蜂,寄主多,分布广,易繁殖,是我国目前生物防治中主要的寄生蜂之一。 多年来,我国大量采用柞蚕、蓖麻蚕大卵作为繁殖赤眼蜂的寄主。有学者认为,使用柞蚕等大卵繁蜂,使赤眼蜂子代发生近亲交配,经多代繁殖,可能导致生活力退化,从而影响防治效果。笔者经试验证实了上述现象。鉴于赤眼蜂近亲交配问题的复杂性。
Incest breeding of Trichogramma dendrolimi Matsumura was observed in oak silkworn eggs at a rate up to 100%, the same was true in eggs of Dendrolimus punctatus Walker. In those eggs, the incest breeding occured at a late stage of female pupa. Arrhenotoky happened in the culture of individual female pupa. Results indicated no any adverse effect of incest breeding in successive generations on progeny vitality and development.
出处
《林业科学研究》
CSCD
北大核心
1991年第4期463-466,共4页
Forest Research
基金
"七五"国家科技攻关项目"赤眼蜂防治马尾松毛虫的利用研究"
关键词
松毛虫赤眼蜂
近亲交配
子代生活力
Trichogramma dendrolimi
incest breeding
progeny vitality
