Moves toward uniform planting on agricultural land have provided abundant feed for sparrows and certain kinds of insects. Just as the dragonfly, firefly, tadpoles, and a number of shallow water fish have been wiped out in droves beneath an assault of pesticides, a few types of insects which are harmful to agriculture--like moths--have built up their resistance, testifying to the old adage that, "a centipede dies hard."
民國六十六年夏天，台大植物病蟲害系主任楊平世和賞蝶學會在新店五峰山，一天可以見到二、三十種蝴蝶。