摘要
梨木虱现已成为危害库尔勒香梨品质的最主要害虫之一,因此本文旨在筛选出防治梨木虱安全高效的药剂。本试验选用20%联苯·噻虫胺、2%甲氨基阿维菌素苯甲酸盐、0.5%苦参碱、36%联肼·螺虫酯、21%噻虫嗪、5%阿维菌素6种药剂,分析不同药剂对梨树嫩芽药害程度和防效。试验结果表明,6种供试药剂在超过推荐浓度下施用均会对梨产生不同程度药害。其中,5%阿维菌素对梨树安全性最高,20%联苯·噻虫胺和0.5%苦参碱次之。6种杀虫剂处理对梨木虱为害均有一定的防效。其中,0.5%苦参碱、36%联肼·螺虫酯及21%噻虫嗪处理速效性较好,用药后3 d防效分别可达93.32%、95.68%、92.70%;0.5%苦参碱和2%甲氨基阿维菌素苯甲酸盐表现稳定,持效性较高,在药后10 d防效仍然高达84.84%和86.70%。因此,0.5%苦参碱是供试6种药剂中防治梨木虱为害的最佳药剂,兼具安全、高效、持效的特点。
Pear psylla has become one of the most important pests endangering the quality of Pyrus brestschneideri.Six different insecticides 20%bifentrin·clothianidin,2%emamectin benzoate,0.5%matrine,36%bifenazate·spirotetramat,21%thiamethoxam and 5%abamectin were used to treat pear psylla,to explore the safety and control effects of different pesticides in this experiment.According to the test results,six different pesticides produced different degrees of damage.Among them,avermectin 5%had the highest safety to pear trees,followed by 20%bifenthrin·clothianidin and 0.5%matrine.The control effects of six insecticides on pear psylla were ideal.The control effects of 0.5%matrine,36%bifenazate·spirotetramat spirochete and 21%thiamethoxam were better,and the control effects at 3 d after treatments were 93.32%,95.68%and 92.70%,respectively.0.5%matrine and 2%emamectin benzoate benzoate were stable,and the control effects at 10 d after treatment were 84.84%and 86.70%,respectively.In terms of comprehensive performance,0.5%matrine had an excellent control effect on pear psylla with safety,high-performance and good persistent effect.
作者
马俊杰
高有华
郑童童
刘龙
郭庆元
MA Junjie;GAO Youhua;ZHENG Tongtong;LIU Long;GUO Qingyuan(College of Agriculture,Xinjiang Agricultural University,Urumqi 830052,China)
出处
《现代农药》
CAS
2022年第3期69-72,共4页
MODERN AGROCHEMICALS
基金
新疆维吾尔自治区重大科技专项项目(2019A01001)。
关键词
库尔勒香梨
梨木虱
药害
防效
田间试验
Pyrus brestschneideri
pear psylla
chemical damage
control effect
field experiment
