Because each spider can eat five or six budworms a day, a legion of spiders can play a major role in preventing an infestation from developing.

• 因为每只蜘蛛每天能吃掉五、六个芽卷蛾，所以一支蜘蛛大军就能够在防止虫灾蔓延方面起到重要的作用。