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首页> 外文期刊>Brazilian Archives of Biology and Technology >Biological characteristics of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lep.: Geometridae), on eggs of Anagasta kuehniella (Lep.: Pyralidae)
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Biological characteristics of Trichogramma pretiosum and Trichogramma acacioi (Hym.: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lep.: Geometridae), on eggs of Anagasta kuehniella (Lep.: Pyralidae)

机译:鳄梨落叶者Nipteria panacea(Lep .: Geometridae)的寄生虫,Tretogramma pretiosum和Trichogramma acacioi(Hym .: Trichogrammatidae)的生物学特征,在Anagasta kuehniella(Lep .: Pyralidae)的卵上

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摘要

The objective of this investigation was to study Trichogramma pretiosum and T. acacioi (Hymenoptera: Trichogrammatidae), parasitoids of the avocado defoliator Nipteria panacea (Lepidoptera: Geometridae) on the eggs of the alternative host Anagasta kuehniella (Lepidoptera: Pyralidae) aiming to use them for biological control of this pest in avocado orchards. The cubic model presented better adjustment for duration of the life cycle of T. pretiosum and T. acacioi with the host A. kuehniella which shows that development rate of these species increases with temperature within the range tested. The number of individuals of both Trichogramma species emerged per egg from this host was higher than one. The quadratic model was significant for viability of T. pretiosum and T. acacioi. This parameter was more affected by extreme temperatures and higher emergence rates of adults of both parasitoids species occurred at temperatures of 20, 25 and 30degreeC.
机译:这项研究的目的是研究鳄梨落叶者Nipteria panacea(鳞翅目:Geometridae)的鳄梨叶蝉(Trichogramma)和拟南芥T.acacioi(膜翅目:Trichogrammatidae)的寄生虫,寄生在寄主Anagasta kuehniella(鳞翅目:拟蝇科)的卵上。在鳄梨果园中对该害虫进行生物防治。立方模型显示了以寄主气单胞菌A. kuehniella为宿主的T. pretiosum和T. aciocioi生命周期持续时间的更好调整,这表明这些物种的发育速率随温度在测试范围内增加。从该寄主中每个鸡蛋出现的两种赤眼蜂物种的个体数量都高于一个。二次模型对于T. pretiosum和T. acacioi的生存能力具有重要意义。该参数受极端温度的影响更大,两种寄生物种类的成虫在20、25和30℃的温度下出现的几率更高。

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