LI Qing-chao,WANG Li-da,WU Lin-lin,et al.Screening of Dominant Species of Trichogramma ostrinae and Evaluation of Field Control Effect[J].HEILONGJIANG AGRICULTURAL SCIENCES,2019,(11):79-82.[doi:10.11942/j.issn1002-2767.2019.11.0079]
优势赤眼蜂种类筛选及田间防效测评
- Title:
- Screening of Dominant Species of Trichogramma ostrinae and Evaluation of Field Control Effect
- 文献标志码:
- A
- 摘要:
- 为筛选出寄生玉米螟卵的优势赤眼蜂种类,科学评估优势赤眼蜂的田间防效,应用绿色防治技术替代传统化学防治,提高玉米的产量和品质。实验室内采用6种赤眼蜂寄生玉米螟的新鲜卵块,初步筛选出3种优势赤眼蜂,田间采用单因素实验设计进行防效测评,并结合产量、挽回产量损失率和增产率确定优势蜂种。结果表明:寄生率最高的是玉米螟赤眼蜂,卵块寄生率为74.0%,卵粒寄生率为65.4%;其次是松毛虫赤眼蜂,卵块寄生率为62.0%,卵粒寄生率为59.5%,螟黄赤眼蜂卵块寄生率和卵粒寄生率分别为58.0%和47.1%,此3种赤眼蜂是寄生玉米螟卵的优势蜂种。玉米螟赤眼蜂的田间平均防治效果73.86%;松毛虫赤眼蜂平均防治效果为68.47%,螟黄赤眼蜂平均防治效果为47.97%,挽回产量损失率分别为9.58%、7.02%和4.02%;增产率分别为9.65%、7.47%和4.52%。综合考虑防治效果和成本控制,实际生产中应当应用松毛虫赤眼蜂防治玉米螟。
- Abstract:
- In order to screen out the dominant species of Trichogramma of parasitic Ostrinia nubilalis eggs,evaluate the field control effect of Trichogramma,and apply green control technology to replace traditional chemical control,improve the yield and quality of corn.In the laboratory,6 kinds of fresh egg masses of the Trichogramma parasitized on Ostrinia nubilalis were used to screen out three dominant Trichogramma
参考文献/References:
[1]魏巍.黑龙江省玉米产业发展问题研究[D].长春:吉林大学,2018.
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备注/Memo
收稿日期:2019-05-29