How to determine the feeding habits of insects 5, how to determine the feeding habits of insects

Herbivorous: insects that feed on various parts of plants, which account for about 40 50% of all insects, such as: armyworms, cotton bollworms, wheat aphids, etc.

Carnivorous: Insects that feed on other animals, such as ladybugs, lacewings, various parasitic wasps, etc.

Satrivorous: Insects that feed on animal carcasses, feces, and decaying plants, such as flies, feces, etc.

Omnivorous: refers to insects that eat both plant and animal foods like cockroaches.

Armyworm Cotton bollworm Parasitic wasp Castel colony Feeding habits.

If the insects are divided according to the breadth and narrowness of the food range, the insects can be divided into:

Polyphagous: insects that can feed on plants of different families, such as cotton bollworm, can harm more than 200 plants of dozens of families.

Oligophagous: Insects that feed only on one family of plants, such as cabbage butterflies and diamondback moths, live only on plants of different genera in the cruciferous family.

Monophagous: Insects that can only feed on one plant or several species that are closely related to it, such as the pear heartworm, which only feeds on plants of the genus Pear, mung bean elephant only harms mung beans, pea elephants only harm peas, etc.

Mainly through the mouthparts.

For example, chewing is the ingestion of solid food.

Stinging and sucking is the ingestion of liquid things.

Chewing and sucking has both the function of ingesting solid food and liquid things.

Siphon feeding on nectar or dew.

Depending on the shape, it is possible to distinguish the eating habits, such as the mouthparts.

There are many pests in nature, and pests also have natural enemies, which can be divided into predatory natural enemies, parasitic natural enemies, and entomopathogenic microorganisms.

Predatory natural enemy insects refer to insects that feed on other insects or animals, some of them directly eat part or all of the insect body, and some pierce the pest's body to suck the body fluids of the insect and cause it to die.

There are many types of predatory natural enemies, the most common are dragonflies, praying mantises, hunting bugs, spiny bugs, flower bugs, lacewings, ladybugs, walking bugs, insectivorous flies, aphid-eating flies, wasps, mud wasps, spiders, and predatory mites. Some species of natural enemies have been bred in captivity and used in farmland, orchards, tree farms and pastures to control pests.

Insects that prey on other insects or small animals. In the classification system of insect classes, predatory insects belong to nearly 200 families of 19 orders. Among them, dragonflies, praying mantises, and pulseoptera insects are predatory insects.

There are also many predatory species in other orders, such as almost all families belonging to the Coleoptera carnivorous suborder are predatory, most species of the Hymenoptera Antidae and the Vespa General family are predatory insects, and some species of the Lepidoptera Mothidae, Moths and Quolls are predatory species. Therefore, predatory insects are an important group in the biological control of pests.

There are about 270,000 species recorded in the world, and about 7,000 species have been recorded in China, and it is almost all beneficial insects of this order of the class of insects, and the adults and larvae are almost predatory, with aphids, scales, mites, psyllids, planthoppers.

According to their feeding methods, they can be divided into two categories: one has chewing mouthparts, which can chew and devour their prey, such as praying mantises, foot beetles and ladybugs;

The other type has piercing and sucking mouthparts, which are specially designed to suck the body fluids of prey, such as nymphs and adults of gnats, lacewing larvae, aphid-eating fly larvae, etc.

If it's junior high school knowledge, I can tell you. It is divided into plant-based, carnivorous, scavency, and omnivorous.

What kind of insect feeding habits does LG ask?

Ask directly. Omnivorous.

Insects have developed a certain selectivity for food during their historical evolution. According to statistics, among all insects, those that eat plants, those that eat decaying matter, parasitic insects, predators account for 28%, and the others are omnivorous. According to the range of food, it can be divided into three categories:

Herbivorous. Feed on fresh plants, and most of the pests of agriculture and forestry belong to this category. Carnivorous.

Other animals or insects can be divided into predation and parasitic food, which are of great significance in pest control, such as ladybugs, square beetles, aphid flies, etc. Decaying. Feed on plant carcasses, animal carcasses or feces, such as flies and some beetles.

According to the food that insects eat, it can be divided into three types: monophagous. Feed only on one plant or one animal, such as citrus bud maggots only eat citrus, and Australian ladybugs only eat blow scales.

Ochivorous. Only feed on one or several plants of the related family, such as the dimorphic borer, in addition to harming rice, but also harming grasses such as cocoon, wheat, and corn. Polyphagia.

Feeding on a variety of different plants or animals, such as moths, stinging moths, blowing scales, etc., can harm many crops.

Edible insects: grasshoppers, grasshoppers, scorpions, maggots, chili, bamboo insects, crickets, bees, silkworms, red bollworms, corn borers, bamboo borers, earth dragons, sand worms, ants, fecal mantises, beetles, agave insects, mole crickets, grasshoppers, moths, pine caterpillars, butterflies, dragonflies, longhorns, praying mantises, dragon lice, field turtles, etc.

Can be artificially cultivated: grasshoppers, scorpions, maggots, crickets, bees, silkworms, ants, gnats, butterflies, etc.

There are locusts, cicadas, crickets, praying mantises, silkworm pupa, etc., which are all edible. Very healthy, rest assured, I have eaten.