alfalfa weevil

例句：

1. 1.The alfalfa weevil is a pest that can damage the health of the plants.
   苜蓿蚜虫是一种害虫，可以损害植物的健康。
2. 2. The farmers have been using insecticides to control the alfalfa weevil population.
   农民们一直在使用杀虫剂来控制苜蓿蚜虫的种群。
3. 3.This new method could be a solution to the problem of controlling the alfalfa weevil.
   这种方法可能是控制苜蓿蚜虫问题的解决方案。