利用昆虫有趋光性的生物学特性，夜间在鱼池水面上挂一盏黑光灯（没有黑光灯，可在白炽灯外包一层黑布制作），可诱捕到大量的野生虫蛾。野生昆虫虫体不仅富含蛋白质，而且其蛋白质中含有鱼类所需的全部氨基酸。因此，用黑光灯诱捕昆虫不仅可以减少它对农作物的危害，而且可以 Insect phototaxis using the biological characteristics of the fish in the water at night hanging a black light (no black light, incandescent lamp can be outsourced layer of black cloth production), can be traced to a large number of wild moths. Wild insect worms are not only rich in protein, but also their proteins contain all the amino acids that fish need. Therefore, trapping insects with black light can not only reduce the damage to crops, but also