LI Qing-chao.Screening of Dominant Trichogramma Species Parasitic on Rice Stem Borer and Its Control Effects[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(02):41-43.[doi:DOI:10.11942/j.issn1002-2767.2022.02.0041]
寄生水稻二化螟的优势蜂种筛选及其防控效果
- Title:
- Screening of Dominant Trichogramma Species Parasitic on Rice Stem Borer and Its Control Effects
- Keywords:
- rice stem borer; Trichogramma; parasitism rate; control effect; yield
- 文献标志码:
- A
- 摘要:
- 为推广以虫治虫绿色防控技术，减少水稻田化学农药的使用，采用单因素试验，设3个赤眼蜂种类处理，即松毛虫赤眼蜂、稻螟赤眼蜂、混合赤眼蜂（松毛虫赤眼蜂和稻螟赤眼蜂3∶1混合），以不放蜂为空白对照（CK），调查寄生率、防治效果和产量等相关指标。结果表明：稻螟赤眼蜂处理的寄生率、校正寄生率、防治效果、产量和挽回产量损失均最高，分别为72.72%、70.45%、64.1%、737.93 kg·（667 m2）-1和4.86%，且与混合赤眼蜂处理差异不显著。由此得出，稻螟赤眼蜂是寄生水稻二化螟卵的优势蜂种，应用稻螟赤眼蜂或松毛虫赤眼蜂和稻螟赤眼蜂混合蜂（3∶1）防治水稻二化螟可达到较为理想的控害效果。
- Abstract:
- In order to promote the green prevention and control technology in pest control through insects,and reduce the use of chemical pesticide in rice field,the single-factor experiment was adopted to arrange the treatments with 3 species of Trichogramma,including Trichogramma dendrolimi,Trichogramma japonicum,as well as the mixed Trichogramma with Trichogramma dendrolimi and Trichogramma japonicum(3∶1),and several related indices such as parasitism rate,effects of prevention and control as well as output were investigated by taking Trichogramma being not released as the blank control (CK).The results showed that the parasitism rate,correction parasitism rate,effects of prevention and control,yield and recovered yield loss of the treatment with Trichogramma japonicum were respectively 72.72%,70.45%,64.1%,737.93 kg·(667 m2)-1 and 4.86%,which were all in the highest level,and had no significant difference with the treatment of mixed Trichogramma.It is concluded that Trichogramma japonicum is the dominant species parasitic on the eggs of rice stem borer.The application of Trichogramma japonicum or mixed Trichogramma with Trichogramma dendrolimi and Trichogramma japonicum(3∶1) to control rice stem borer can achieve ideal control effect.
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备注/Memo
收稿日期：2021-10-27
基金项目：黑龙江省农业科学院乡村振兴科技支撑示范项目；中国科学院战略性先导科技专项（XDA28130504）。
作者简介：李青超（1986-），男，硕士，助理研究员，从事植物保护研究。E-mail：lqc19860130@163.com。