捕食螨释放量对其防控柑桔全爪螨效果的影响  

Effects of the release amount of predatory mites on the control of Panonychus citri

作　　者：毛加梅[1] 杨建东[1] 郭俊[1] 岳建强[1] 闫素云 赵俊[1] 王自然[1] MAO jiamei;YANG Jiandong;GUO Jun;YUE Jianqiang;YAN Suyun;ZHAO Jun;WANG Ziran(Institute of Tropical and Subtropical Cash Crops,Yunnan Academy of Agricultural Sciences,Baoshan,Yunnan,678000,China)

机构地区：[1]云南省农业科学院热带亚热带经济作物研究所,云南保山678000

出　　处：《中国南方果树》2024年第6期37-42,共6页South China Fruits

基　　金：云南省王进军专家工作站(202105AF150071);云南热区特色水果(柑桔和杧果)科技创新平台建设及产业化应用(202102AE090054);云南柑桔品种区域布局与高值生产技术集成与示范(202102AE090020);云南省科技厅科技计划项目“怒江特色柑桔产业提质增效适用技术集成与示范”(202003AD150014)资助。

摘　　要：在云南省泸水市怒江大峡谷的一个沃柑基地,2022年9月中旬于柑桔全爪螨不同种群密度(≤15头/株、25~55头/株和≥95头/株)区分别每株释放捕食螨1袋(抗药性巴氏新小绥螨≥3000头)和2袋(抗药性巴氏新小绥螨≥6000头)后(以不释放捕食螨为CK),调查柑桔全爪螨种群动态变化,分析释放捕食螨对柑桔全爪螨的防控效果。结果表明,在柑桔全爪螨≤15头/株区,每株释放1袋和释放2袋捕食螨的柑桔全爪螨种群数量差异不明显,但与CK差异明显;在柑桔全爪螨25~55头/株区,每株释放2袋捕食螨的柑桔全爪螨种群数量明显低于释放1袋,且释放捕食螨的均明显低于CK;在柑桔全爪螨≥95头/株区,2个捕食螨释放处理的柑桔全爪螨种群数量均表现下降趋势,释放1袋的柑桔全爪螨种群下降速度低于释放2袋。在柑桔全爪螨≤15头/株区,捕食螨释放1袋/株和2袋/株均可起到好的防控效果,但考虑到防控成本,建议选择释放1袋/株。在柑桔全爪螨25~55头/株区,释放捕食螨2袋/株有较好的防控效果,第28天至第63天的防控效果达(84.19±4.99)%以上。在柑桔全爪螨≥95头/株区,释放捕食螨防控柑桔全爪螨的效果差,宜先使用药剂防控来降低柑桔全爪螨种群基数,再释放捕食螨。In mid September of 2022,in a Orah citrus orchard in the Nujiang Grand Canyon of Lushui City,Yunnan Province,the population dynamics of Panonychus citri were investigated in the areas of different population densities(≤15 heads/plant,25-55 heads/plant,and≥95 heads/plant)after releasing 1 bag of predatory mites(≥3000 heads of pesticide-resistant Bacteroidetes)and 2 bags(≥6000 heads of pesticide-resistant Bacteroidetes)per plant,respectively,with non-releasing predatory mites as the control group.The control effect of releasing predatory mites on P.citri was also analyzed.The results showed that in the area where the number of P.citri was≤15 heads per plant,there was no significant difference in the population of P.citri between releasing 1 bag and 2 bags of predatory mites per plant,but there was a significant difference compared with the control group.In the area with 25-55 heads/plant of citrus red mites,the population of citrus red mites in the treatment of releasing 2 bags of predatory mites per plant was significantly lower than that of releasing 1 bag,and the population of citrus red mites in the areas of predatory mites released was significantly lower than that of the control group.In the area with≥95 heads/plant of P.citri,the populations of P.citri of two predatory mite releasing treatments showed a decreasing trend,with the population of P.citri in one bag releasing decreased at a slower rate than that in two bags releasing.In areas with less than or equal to 15 citrus mites per plant,releasing 1 bag per plant or 2 bags per plant of predatory mites could achieve good control effects.However,considering the cost of prevention and control,it was recommended to release 1 bag per plant.In the area with 25-55 heads/plant of P.citri,releasing 2 bags/plant of predatory mites had a good control effect of over(84.19±4.99)%from the 28th day to the 63th day of treatment.In areas where the number of citrus red mite was≥95 heads per plant,the effectiveness of releasing predatory mites to control citru

关 键 词：巴氏新小绥螨 柑桔全爪螨 种群动态 防控效果 

分 类 号：S436.66[农业科学—农业昆虫与害虫防治] S476.2[农业科学—植物保护]