grasshoppern.蚱蜢；蝗虫；轻型飞机；蚱蜢鸡尾酒grasshopper control蝗虫防治grasshopper linkage蚱蜢机构Grasshopper Warblern.黑斑蝗莺(莺科)Grasshopper community蝗虫群落grasshopper occurrence蝗虫发生grasshopper population蝗虫种群grasshopper infestation蝗灾Grasshoppers die in fall.蚱蜢在秋天死去。grasshopper killing machine灭蝗机具grasshopper pneumatic trapper蝗虫吸捕机