不同保护释放策略对螟黄赤眼蜂田间寄生和出蜂的影响
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S476.3

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国家重点研发计划项目(2017YFD0201000);山西省青年科技研究基金(201801D221317);山西省农业科学院农业科技创新研究课题(YCX2018303)


Effect of Different Protective Release Strategies on Parasitism and Emergence of Trichogramma chilonis in the Field
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    摘要:

    以螟黄赤眼蜂为研究对象,明确保护释放过程中蜂卡质量对补给米蛾卵寄生和出蜂情况的影响,并探讨能否通过米蛾卵的补给来缩减保护释放的次数。结果表明:当蜂卡出蜂率较高时,释放器内对应补给米蛾卵卡的寄生卵数和出蜂卵数也相对较高,且出蜂率高于85%;两批次放蜂后,放蜂区和未放蜂区内米蛾卵卡的寄生卵数和出蜂卵数间均存在显著性差异,且表现为放蜂3次区最高,放蜂2次区次之,未放蜂区最低。研究发现,在中间寄主卵补给的保护释放策略中,蜂卡质量越优,羽化蜂在补给卵上储备的子代蜂基数就会越多,更有利于该技术的实施。中间寄主卵的补给可以给释放蜂种提供临时的寄生场所,但通过中间寄主卵的补给无法有效缩减释放次数。

    Abstract:

    Trichogramma chilonis was used as research object to specify the effect of trichogramma products quality on parasitism and emergence of Corcyra cephalonica egg supplies, and discuss whether releasing times could be reduced by supplying eggs during protective release. The results showed that the number of parasitized and hatched eggs supplied inside release device was relatively more when emergence rate of trichogramma products was higher,and emergence rate was above 85%. There was significant difference on the number of parasitized eggs and hatched eggs between release and unreleased areas, which showed the highest was in release for 3 times, followed by release twice, the lowest in unreleased areas. The better quality of trichogramma products is, the higher number of offspring reserved in egg supplies will be. Supplying intermediate host eggs during protective release could provide trichogramma with temporary host in the fields, but releasing time could not be reduced by the practice.

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张烨,朱文雅,李唐.不同保护释放策略对螟黄赤眼蜂田间寄生和出蜂的影响[J].东北农业科学,2022,47(1):91-94.

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  • 收稿日期:2020-01-02
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  • 在线发布日期: 2024-11-09
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