I had bad infestattions of Japanese beetles for two years in my blueberry field. I trapped them and every evening would feed them to my fish. EVERYONE came to dinner, BG,HBG,RES,LMB,CC even grass carp. Then after two bad years, they just dissappeared. Have only seen a couple JB this year. They would hammer these bugs. Can't imagine fish not eating them but I guess every pond is different.
