摘要
为筛选出与乙基多杀菌素复配具有增效作用的杀虫剂组合,采用叶管药膜法测定了乙基多杀菌素分别与啶虫脒、毒死蜱、阿维菌素、高效氯氰菊酯复配对黄胸蓟马2龄若虫的联合毒力,并采用共毒系数法评价了复配组合的联合作用。结果表明,乙基多杀菌素与啶虫脒在配比为3∶7、5∶5、7∶3和8∶2时,与毒死蜱在所有配比组合中,与阿维菌素在配比为2∶8、3∶7和6∶4时,其共毒系数(CTC)均大于120,表现出显著的增效作用;而与高效氯氰菊酯在所有配比下均不具有增效作用。乙基多杀菌素与啶虫脒、毒死蜱、阿维菌素采用上述具有增效作用的复配比复配,在害虫治理和抗性治理中具有一定的应用前景和开发潜力。
To screen synergistic mixture of spinetoram with other four insecticides against Thrips hawaiiensis, the co-toxicity of spinetoram with acetamiprid, chlorpyrifos, abamectin and beta-cypermethrin against the second instar nymphs of T. hawaiiensis was tested under the mass ratio of 1：9, 2：, 3：7,4：6,5：5, 6：4, 7：3, 8：2 and 9：1, respectively. The toxicity was determined by leaf-tube residual bioassay method in the laboratory, and the synergism was evaluated by co-toxicity coefficient method. The results demonstrated that the mixture of spinetoram and acetamiprid with the mass ratio of 3： 7,5：5, 7： 3 and 8： 2, spinetoram and chlorpyrifos with all the tested ratios, and spinetoram and abamectin with the mass ratio of 2：8, 3：7 and 6：4, showed a higher co-toxicity coefficient （CTC） of over 120, indicating significant synergism. Nevertheless, CTC in the mixture of spinetoram and beta- cypermethrin with all the tested ratios was less than 120, showing non-synergism. The results taken together indi- cated that the mixture of spinetoram and acetamiprid, chlorpyrifos, abamectin could be used in pest management and insecticide resistance management of T. hawaiiensis.
出处
《植物保护》
CAS
CSCD
北大核心
2016年第4期221-225,共5页
Plant Protection
基金
海南省自然科学基金(20153066)
中央级科研院所基本业务费项目(2015hzs1J027)
国家现代农业产业技术体系(CARS-32-04)
