Ishaaya Isaac, Kontsedalov Svetlana, Horowitz A Rami
Department of Entomology, Agricultural Research Organization, Volcani Center, Bet-Dagan, 50250, Israel.
Pest Manag Sci. 2002 Nov;58(11):1091-5. doi: 10.1002/ps.535.
Emamectin is a macrocyclic lactone insecticide with low toxicity to non-target organisms and the environment, and is considered an important component in pest-management programmes for controlling field crop pests. It is a powerful compound for controlling the cotton bollworm Helicoverpa armigera (Hübner). A spray concentration of 25 mg AI litre-1 in a cotton field resulted in over 90% suppression of H armigera larvae up to day 28 after treatment, while similar mortality of the Egyptian cotton leafworm Spodoptera littoralis Boisduval, under the same conditions, was maintained for 3 days only. Emamectin is a potent compound for controlling the western flower thrips Frankliniella occidentalis (Pergande) under both laboratory and field conditions and its activity on adults was over 10-fold greater than that of abamectin. Spray concentrations of 10 and 50 mg AI litre-1 in Ageratum houstonianum Mill flowers resulted in total suppression of adults up to day 11 and of larvae up to day 20 after treatment. Under standard laboratory conditions, emamectin exhibits a considerable activity on the whitefly Bemisia tabaci (Gennadius) and the leafminer Liriomyza huidobrensis (Blanchard). Further studies are required to evaluate its potential activity on the latter pests under field conditions.
甲氨基阿维菌素苯甲酸盐是一种大环内酯类杀虫剂，对非靶标生物和环境毒性较低，被认为是控制大田作物害虫的害虫管理计划中的重要组成部分。它是防治棉铃虫Helicoverpa armigera（Hübner）的一种有效化合物。在棉田喷雾浓度为25毫克有效成分/升时，处理后28天内对棉铃虫幼虫的抑制率超过90%，而在相同条件下，埃及棉叶虫Spodoptera littoralis Boisduval的类似死亡率仅维持3天。在实验室和田间条件下，甲氨基阿维菌素苯甲酸盐都是防治西花蓟马Frankliniella occidentalis（Pergande）的有效化合物，其对成虫的活性比阿维菌素高10倍以上。在藿香蓟Ageratum houstonianum Mill花上喷雾浓度为10和50毫克有效成分/升时，处理后11天内对成虫和20天内对幼虫实现了完全抑制。在标准实验室条件下，甲氨基阿维菌素苯甲酸盐对烟粉虱Bemisia tabaci（Gennadius）和南美斑潜蝇Liriomyza huidobrensis（Blanchard）表现出相当的活性。需要进一步研究来评估其在田间条件下对后两种害虫的潜在活性。
