10 种杀虫剂对荔枝蝽象的防治效果
Control effects of 10 kinds of pesticides on Tessaratoma papillosa Drury
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摘要: 为筛选出对荔枝蝽高效、安全的杀虫剂品种，在室内用喷雾法研究了10 种杀虫剂不同浓度下对荔枝蝽的毒力，并在田间进行药效试验。结果表明，对荔枝蝽的毒力，2.5% 功夫SC ≥ 2.5% 敌杀死EC ＞20% 甲氰菊酯EC ＞ 50% 噻虫胺WG ＞ 10% 醚菊酯SC ＞ 5% 啶虫脒ME ＞ 25% 噻虫嗪WG ＞ 1.8% 阿维菌素EC ＞ 10% 吡虫啉WP ＞ 25% 噻嗪酮WP；田间对荔枝蝽的杀虫效果以2.5% 功夫、10% 醚菊酯、2.5% 敌杀死3000 倍和50% 噻虫胺2 000 倍最佳，其药后7 d 的防效分别为94.93%、93.46%、91.14% 和92.93%。上述对荔枝蝽效果优良的拟除虫菊酯类及新烟碱类杀虫剂品种可轮换使用，这对环境及该虫的可持续治理将更有益。Abstract: Some highly efficient，durable and safe pesticides were screened for controlling Tessartoma papillosa Drury. Through indoor toxicity test， the control effects of 10 kinds of pesticides under different concentrations for controlling T. papillosa Dmry were studied，and then field efficacy trials according to the results were designed. After 7 days of pesticide treatments，the control efficiencies of deltamethrin EC（2.5%）3000 times，cyhalothrin SC（2.5%） 3000 times，ethofenprox SC（10%）3000 times and clothianidin WG（50%）2000 times were recorded as 91.14%， 94.93%，93.46% and 92.93%，effectively and stably. Pyrethriod pesticides were still the main drug preventing T. papillosa Dmry currently. We can improve the control effect of the pesticides and reduce the negative impact on the environment through scientific and rational rotation and complex pesticides.
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