Insects are the largest class in the animal kingdom, with more than 850,000 known species, accounting for 4/5 of the total number of animals. The body is divided into three parts: head, chest and abdomen, and the chest has 3 pairs of segmented feet, so it is also called hexapods. Insects are composed of 3 classes and 33 orders, and there are nine orders that are closely related to production: Orthoptera, Taemona, Homoptera, Hemiptera, Veined Wing, Lepidoptera, Coleoptera, Hymenoptera, and Diptera.
The following is a brief description of these orders and important families, and some of the common agricultural insects are listed:
1. The larger order of insects in the order Orthoptera, including locusts, crickets, cockroaches, cockroaches and other common insects. Large or medium-sized, chewable mouthpiece. The forewings are narrow and slightly hardened, and the hindwings are membranous; some species are short-winged, or even wingless, and some are extremely powerful and can fly over long distances. The hind feet are powerful and suitable for jumping. Spot-winged locust family: East Asian flying locust, cloud-spotted locust; Spotted locust family: Chinese rice locust, Japanese yellow-ridged locust; Scorpion family: single-spined flying scorpion, Oriental scorpion.
2. Thysanoptera, commonly known as thrips, has a tiny body. Generally yellowish brown or black. The eyes are well developed. Long antennae, file suction mouthpiece. The wing is membranous , with dense , long, tyrannical marginal hairs. Among them, thrips: rice thrips, tobacco thrips, greenhouse thrips; tube thrips: rice tube thrips, wheat Jane tube thrips.
3. Homoptera: Cicadas, leafhoppers, planthoppers, wood lice, whitefly, aphids and mesenchymals belong to this order. Mostly small insects, the stinging mouthparts, the base of which is born on the ventral surface of the head, as if from between the basal segments of the forefoot. Winged species anterior and posterior wings are membranous, roof ridge-like covering on the back of the body when stationary, many species of female insects are wingless, mesenchymals and aphids often have wingless types, leafhoppers and aphids can also transmit plant virus diseases. Among them whitefly: greenhouse whitefly; Leafhopper family: black-tailed leafhopper, large green leafhopper, cotton leafhopper family; Waxhopper family: spotted wax cicada; planthopper family: brown planthopper, white-backed planthopper, gray planthopper and sugarcane flat horned planthopper; aphid family: cotton aphid, wheat dipter, wheat long tube aphid, peach aphid, sorghum aphid, radish aphid; sheep nymphal family: blowing sponge bug; shield nymph family: mulberry shield nymph, yak-tip shield aphid, pear round aphid; wax aphid family: white wax worm, red wax aphid, Korean ball solid flea; wax aphid family: white wax worm, red wax aphid, Korean ball solid oyster;
4. Hemiptera (Hemiptera) is commonly known as "bug" or "Tsubaki"; most of them are slightly flattened in width, the base of the forewing is leathery, and the end is half membranous, called hemi-elytra; the stinging mouthparts, whose nymphs have odor glands on their abdomen, so they are named "bed bugs" and "fart bugs". Among them, reticulated bugs: pear reticulated bugs, banana reticulated bugs; flower bugs: fine-horned flower bugs, tiny flower bugs; marginal bugs: needle edge bugs, rice spider edge bugs; bug families: rice brown bugs, rice black bugs, rice green bugs. Braille family: green blind bugs, alfalfa blind bugs, medium black blind bugs;
5. Neuroptera is often referred to as "cockroach"; subheading, chewing mouthparts. It is a carnivorous beneficial insect that preys on aphids, butterfly moth larvae and so on. Among them, grasshoppers: large grasshoppers, lisgrass grasshoppers, Chinese grasshoppers;
6. Lepidoptera (Lepidoptera) is the second largest order of insects. The biggest feature is that the wings are covered with small scales, and the adults are called moths or butterflies. Siphon mouthparts, forming a long and able to curl up beak; there are about 140,000 known species, of which more than 90% are moths and less than 10% are butterflies. The similarities between moths and butterflies are that the antennae of butterflies are enlarged, while the antennae of moths are linear or pinnate; butterflies have wings closed on their backs when resting, while moths rest with their wings flat on the sides of the body or shrink into a roof ridge; butterflies are mostly active during the day, while moths are mostly nocturnal and usually have strong phototropism.
Among them, the valley moth family: valley moth, coat moth; thorn moth family: yellow thorn moth, brown thorn moth, flat thorn moth; wheat moth family: wheat moth, cotton red bollworm, sweet potato wheat moth; cabbage moth family: small cabbage moth; borer moth family: peach borer moth (peach small heart-eating insect); curly moth family: soybean heartworm, peach small heartworm, apple top leaf curl moth, brown ribbon long leaf curl moth, pseudo-small yellow curl leaf moth; borer family: dim chemical borer, bean pod borer, corn borer, three flower borer, cabbage borer, rice longitudinal leaf borer, striped borer, cotton leaf curl leaf borer, peach borer species; night moth family: leaf eater, twill night moth , Rice borer, cotton bridge-making insect, beet nocturnal moth; borer food species: large borer, cotton bollworm, diamond diamond; root-cutting species: small ground tiger, earth tiger, yellow ground tiger;
Poison Moth Family: Poison Moth, Dancing Poison Moth; Moth Family: Sweet Potato Moth, Bean Moth; Butterfly Family: Straight-striated Rice Butterfly, Hidden Grain Butterfly; Butterfly Family: Citrus Butterfly, Jade Ribbon Butterfly; Pink Butterfly Family: Vegetable Powder Butterfly; Butterfly Family: Ramie Red Butterfly, Ramie Yellow Butterfly;
7. Coleoptera (Coleoptera) is the first order of insects, with more than 300,000 species, accounting for 40% of the total number of insects. Commonly known as beetles, abbreviated as "beetles". The body is generally hard and shiny. The head is normal, but there are also beak-like (weevils) that extend forward and have a chewing mouthpart at the end. The forewings are, hard, called elytra, with no obvious wing veins. Among them, Coriander family: coriander; step beetle family: Venus step beetle, wrinkled sheath step beetle, wheat ear step beetle; Kowtow family: groove kowtow (ditch golden needle worm), fine-breasted percussion worm (thin breast golden needle worm); skin beetle family: grain spotted beetle, black skin beetle; gidding family: citrus small gidding, golden edge gidding; ladybird family: beneficial insects: Australian ladybird, tortoiseshell ladybird, black ladybird, seven-star ladybird; pests: potato ladybird, eggplant twenty-eight star ladybird; pseudo-step beetle family: yellow mealworm, black powderworm, red-like valley thief, miscellaneous grain thief; Golden Turtle Family: Aeruginosa: Aeruginosa, Gill Golden Turtle Family: Dark Golden Turtle, North China Great Black Gill Golden Turtle; Celestial Cow Family: Mulberry Sky Cow, Star Sky Cow, Orange Sky Cow, Peach Neck Sky Cow; Leaf Beetle Family: (a.k.a.k.: GoldenRobill) Great Ape Leaf Worm, Small Ape Leaf Worm, Yellow Guard Melon, Yellow Curved Strip Jumping Beetle; Bean Elephant Family: Mung Bean Elephant, Pea Elephant, Broad Bean Elephant; ElephantAceae: Corn Elephant, Rice Elephant;
8. Hymenoptera includes various ants and bees. Chewable mouthpiece with front and back fin connections completed by a fin hook. According to whether the base of the abdomen is shrunken and thinned, it is divided into broad-waisted suborders (leaf bee family) and slender waist suborders (Chickaceae, Cocoon Bee, Small Bee, Red-eyed Bee, etc.). Leaf bee family: wheat leaf bee, pear bee; Bee family: yellow-banded wasp, armyworm white star bee, borer hanging cocoon bee, cotton bollworm tooth lip bee, borer black spot wart bee; cocoon bee family: beneficial insects: Chinese cocoon bee, borer black striped cocoon bee, borer velvet cocoon bee, rice longitudinal leaf borer cocoon bee, Indian aphid, cocoon bee, cotton aphid cocoon bee; small bee family: beneficial insects: large-legged wasps; golden bees: black and green wasps, butterfly chrysalis golden wasps;
Red-eyed bees: beneficial insects: broad-eyed bees, rice borer red-eyed bees, pseudo-Australian red-eyed bees, pine caterpillar red-eyed bees;
9. Diptera includes mosquitoes, flies, flies, flies, etc. Suction or licking mouthpiece. The forewings are membranous and the hindwings degenerate into balance rods. Among them, the family Of Oleidae: Wheat Red Suckers, Wheat Yellow Suckers, Rice Gall Mosquitoes; Fruit Fly Family: Citrus Fruit Fly, Melon Fruit Fly; Aphid Family: Beneficial Insects: Slender Waist Eating Aphid Flies, Black Belt Aphid Fly; Submerged Flies: Wheat Leaf Grey Divers, American Spotted Fly, Bean Straw Black Flyers; Yellow Flycatcher Family: Wheat Straw Flies; Flower Flies: Seed Flies, Allium Flies, Radish Flies; Parasitic Flies: Umbrella Skirt Fly, Corn Borer Fly, Armyworm Lack of Whiskers Fly;
Attached: Agricultural mites belong to the arthropod phylum, arachnids, tick mite subclass, and the recorded species have reached more than 100,000 species. Many plant-eating mites are large agricultural pests, including leaf mites, tarsal mites, leaf claw mites and gall mites that harm leaves and fruits; root mites that harm roots.