Polyphagous. The habit of animals feeding on plants or animals of many different groups. For example, the ground tiger, in addition to harming cereals and cereals of gramineae, harms cotton of mallow family, alfalfa of legume family and vegetables of cruciferous family by electricity; The corn borer feeds on more than 100 plants. The food of cod includes fish, crustaceans, echinoderms, molluscs and coelenterates; Raptors (ducks, eagles, kites, forest crows, etc.) feed on small animals, birds, reptiles, amphibians, fish, insects, mollusks, worms, etc. [2]
as Corn borer Feed on more than one hundred plants; Codfish It feeds on fish, crustaceans, echinoderms, molluscs and coelenterates; Birds of prey (such as buzzards, eagles, kites, forest owls, etc.) feed on small animals, birds, reptiles, amphibians, fish, insects, etc., which are representatives of "polyphagous". In addition to harming cereals and cereals of Gramineae, the field tiger also harms cotton of Malvaceae, alfalfa of Leguminosae and vegetables of Cruciferae, which is also a representative of polyphagia. Polyphagous animals refer to animals that usually feed on multi family organisms. There are many examples of this in carnivorous animals, but few in herbivorous animals, especially insects.
Polyphagous insects refer to insects that feed on a variety of plants. There are many such insects, such as rice bracts, which not only damage rice, but also sorghum, barley, corn, grass, paspalum bicolor, white fescue, reed, awn grass, barnyard grass and other plants. The armyworm can damage wheat, barley, barley, millet, sorghum, corn, rice, sugarcane and other plants. Cotton spider In addition to harming cotton, it also harms many plants such as soybean, corn, millet, alfalfa, peanut, hemp, etc. [3] 
