烟草科技2017，Vol.50Issue(10)：30-34,5.
利用乙基多杀菌素防治初烤烟仓库中的烟草粉螟
Control efficacy of spinetoram against Ephestia elutella(Hübner)in cured tobacco leaf warehouse
摘要
Abstract
To effectively control the damage of Ephestia elutella(Hübner)on tobacco leaves during warehouse storage, indoor bioassay was conducted to compare the contact activity to old larvae of Ephestia elutella (Hübner)between spinetoram and β-cypermethrin. Warehouse experiments were conducted to investigate the control efficacy and duration of spinetoram on old larvae of Ephestia elutella(Hübner)at different concentrations. The field control effect of spinetoram on the Ephestia elutella(Hübner)in warehouse was also tested. The results showed that the LC50 and LC90 of spinetoram on old larvae of Ephestia elutella(Hübner)were 0.091 6 and 0.249 2 mg/L, and those of β-cypermethrin were 0.127 4 and 1.854 4 mg/L, respectively. The duration of 80 and 40 mg a.i/L spinetoram was 24 and 18 days and that of 750 mg a.i/L β-cypermethrin was 6 days. Comparing with common β-cypermethrin, spinetoram performed effectively in activity, control efficiency and duration, and its efficacy was verified in warehouses. The old larvae of Ephestia elutella(Hübner)usually climbs out of tobacco leaf bales, therefore spinetoram surface treatment in warehouses could prevent Ephestia elutella(Hübner)pupation and eclosion even not applying to tobacco leaves directly. Spinetoram could significantly reduce population density and control Ephestia elutella(Hübner)in cured tobacco leaf warehouses.关键词
烟草粉螟/初烤烟叶/乙基多杀菌素/高效氯氰菊酯Key words
Ephestia elutella(Hübner)/Cured tobacco leaf/Spinetoram/β-cypermethrin分类
农业科技引用本文复制引用
杨国浩,叶明亮,郑东胜,刘金富,周晓峰,程新胜..利用乙基多杀菌素防治初烤烟仓库中的烟草粉螟[J].烟草科技,2017,50(10):30-34,5.基金项目
福建省烟草公司科技项目"两烟物流体系中贮烟害虫防治技术研究与集成"(20163500002007). （20163500002007）
