defoliator r落叶剂;食叶害虫
cotton defoliator棉花打叶喷雾器
teak defoliator柚木野螟
sugarcane defoliator甘蔗除叶器
sagebrush defoliator蒿麦蛾
forests defoliator森林食叶害虫
defoliator in Populur杨树食叶害虫