机构地区:[1]湖南农业大学植物保护学院,植物病虫害生物学与防控湖南省重点实验室,湖南长沙410128 [2]湖南省园艺研究所,湖南长沙410125 [3]江华瑶族自治县农业农村局,湖南江华425500
出 处:《湖南农业科学》2024年第11期51-54,共4页Hunan Agricultural Sciences
基 金:国家重点研发计划项目(2021YFD1400800,2022YFD1700505);湖南省重点研发项目(2022NK2052,2022NK2015);湖南省农业科技创新资金项目(2023CX23);湖南省水果产业技术体系项目(HARS-09)。
摘 要:为明确植物源甘油酯对几种农药防控柑橘木虱的减量增效作用,通过联苯·螺虫酯、噻虫·虱螨脲、苦参碱、植物源甘油酯单用及植物源甘油酯分别与3种农药减量50%组合对柑橘木虱成虫、若虫的防控效果对比试验,检验植物源甘油酯对这3种农药防控柑橘木虱的减量增效作用。结果表明:植物源甘油酯及其与联苯·螺虫酯或噻虫·虱螨脲减药50%的组合对柑橘木虱若虫和成虫均有很好的防控效果,单独施用植物源甘油酯125倍稀释液,药后14 d对柑橘木虱成虫、若虫的校正虫口减退率达到88%以上,联苯·螺虫酯或噻虫·虱螨脲减药50%的组合与单独施用不减量联苯·螺虫酯或噻虫·虱螨脲的相当,用药后3~14 d柑橘木虱若虫校正虫口减退率96.24%~100.00%、成虫校正虫口减退率80.73%~100.00%;单独施用苦参碱对柑橘木虱若虫防控效果差,对成虫没有防控效果,但植物源甘油酯与其减药50%组合可以明显提高对柑橘木虱若虫、成虫的防控效果,药后3~14 d若虫校正虫口减退率86.93%~100.00%、成虫校正虫口减退率16.85%~56.64%。To clarify the decrement and synergism effect of plant-derived glyceride combined with several pesticides to control Citrus Psyllid,the control effects of single application in normal concentration of bifenthrin·spirotetramat,thiamethoxam·lufenuron,matrine,and plant-derived glyceride,as well as the joint application of plant-derived glyceride combined with 50%concentration of the three pesticides on adult and nymphs of Citrus Psyllid were compared through experiments.In addition,the decrement and synergism effect of plant-derived glyceride combined with the three pesticides to control Citrus Psyllid was verified.The results show that plant-derived glyceride combined with a 50%concentration of bifenthrin·spirotetramat or thiamethoxam·lufenuron has a good control effect on both nymphs and adults of Citrus Psyllid.The application of a solution of plant-derived glyceride alone after 125 times of dilution can achieve the corrected population decline rate of over 88%on adult and nymphs of Citrus Psyllid after 14 days.The application of plantderived glyceride combined with a 50%concentration of bifenthrin·spirotetramat or thiamethoxam·lufenuron has the same effect on the corrected population decline rate of nymphs and adults of Citrus Psyllid compared with a single application in the normal concentration of bifenthrin·spirotetramat and thiamethoxam·lufenuron.After 3–14 days of pesticide application,the corrected population decline rate of nymphs of Citrus Psyllid is 96.24%–100.00%,and that of adults of Citrus Psyllid is 80.73%–100.00%.The control effect of a single application in the normal concentration of matrine on nymphs of Citrus Psyllid is low,and it has no control effect on adults of Citrus Psyllid.However,the plant-derived glyceride combined with a 50%concentration of matrine can significantly improve the control effect on adults and nymphs of Citrus Psyllid.After 3–14 days of pesticide application,the corrected population decline rate of nymphs of Citrus Psyllid reaches 86.93%–100.00%,and that
分 类 号:S436.661.2[农业科学—农业昆虫与害虫防治]
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