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,提高赤眼蜂释放效率,降低防治成本。采用单因素随机区组设计和二因素完全随机化设计,完成了不同放蜂量、放蜂器投放数量、放蜂量和放蜂器投放数量组合3个试验,调查卵块寄生率、校正寄生率、相对防效和产量等相关指标。结果表明,应用植保无人机释放稻螟赤眼蜂防治水稻二化螟,释放量45万头/hm^(2),放蜂器投放数量90个/hm^(2),分3次平均释放,每次释放间隔5 d,卵块寄生率62.8%,校正寄生率60.0%,防治效果67.7%,产量和挽回产量损失率分别为11186.4 kg/hm^(2)和6.0%。
In order to promote the green control technology of pest control,reduce the use of chemical pesticides in paddy fields,improve the release efficiency of Trichogramma,and reduce the cost of control.The experiment adopted a single-factor randomized block design and a two-factor completely randomized design,and completed 3 experiments with different bee release amounts,bee release numbers,and combinations of bee release numbers and bee release numbers,investigated parasitism rate,corrected parasitism rate,yield and other related indicators.The results showed that the plant protection drone was used to release Trichogramma to control the rice borer,the release amount was 450000 head/hm^(2),and the number of bee releasers was 90 ind./hm^(2),and the average release was divided into 3 times.The release interval was 5 days,the parasitism rate of egg mass was 62.8%,the corrected parasitism rate was 60.0%,the control effect was 67.7%,and the yield and recovered yield loss rates were 11186.4 kg/hm^(2) and 6.0%,respectively.
作者
李青超
赵秀梅
王立达
刘悦
兰英
刘洋
韩业辉
王连霞
LI Qing-chao;ZHAO Xiu-mei;WANG Li-da(Qiqihar Branch,Heilongjiang Academy of Agricultural Sciences,Qiqihar,Heilongjiang 161006)
出处
《安徽农业科学》
CAS
2023年第1期136-138,共3页
Journal of Anhui Agricultural Sciences
基金
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)
齐齐哈尔市科技局创新激励项目(CNYGG-2021029)。
关键词
稻螟赤眼蜂
水稻二化螟
植保无人机
寄生率
相对防效
Trichogramma japonicum
Rice stem borer
Unmanned aerial vehicle
Parasitism rate
Relative control effect
