What are the beneficial insects and which insects are beneficial insects

Dragonflies, bees.

Dragonflies specialize in preying on flies, mosquitoes, and other pests in agriculture, forestry and animal husbandry to enhance the development of agriculture, forestry and animal husbandry. Seals can pollinate crops, fruit trees, pastures and traditional Chinese medicine plants to increase yields.

Among the insects that are beneficial to humans, dragonfly larvae live in water, which can be used to monitor environmental pollution, and have medicinal, edible and ornamental value.

Insects are the most common type of arthropods, there are more than 100,000 species of insects known to human beings, the most common are locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches, etc., most insects can be used as specimens and precious medicinal materials, which are good resources that human beings can use.

1 bee. Bees are one of the insect groups that are beneficial to humans, because bees work non-stop to obtain food, collect honey during the day and make honey at night, and at the same time complete the pollination task for fruit trees, an important medium for pollination of crops, pollinating crops, fruit trees, vegetables, pastures, camellia crops and traditional Chinese medicine plants, and the yield can be increased several times to 20 times.

2 Dragonflies. The larvae of dragonflies can prey on mosquito larvae in the water, and the adults generally fly in ponds or rivers to prey on flying insects, in addition to a large number of mosquitoes, flies and other insects that are harmful to humans, they are the most common beneficial insects.

3 praying mantises. The praying mantis is the little overlord of the insect kingdom, with slender and elegant appearance, but its character is very fierce, especially its pair of "big knife" like forefeet, which makes other insects intimidated, usually catches other kinds of insects for food, and takes butterflies, cicadas, and locusts as the main food, which can destroy most of the harmful insects.

4 ladybugs. The larvae of ladybugs live a monotonous and boring life, cruising between flowers and plants every day, frantically preying on aphids, adults will prey on any insect with tender flesh, and the favorite food is aphids, people often collect swarms of ladybugs and sell them to farmers and horticulturists to control aphids, scales, mites and other pests.

5 silkworms. Silkworms are one of the insects that have contributed the longest and greatest to human beings, and the main raw material of silk occupies an important position in human economic life and cultural history. Legend has it that as early as more than 3,000 years ago, the wife of the Yellow Emperor began to "raise silkworms and extract silk".

The insects and pupae of silkworms are edible and have therapeutic effects.

6 lacewings. Lacewings are predatory insects, belonging to the insect class of the Pulsoptera, can effectively prey on a variety of important agricultural pests, such as large lacewings, lacewings, etc., an average of more than 100 aphids a day, so people have carried out a wide range of artificial use of lacewings to eliminate pests.

7 shell lang. The feces feed on animal feces, and the food they eat can exceed their own body weight within 24 hours, which can accelerate the process of transforming the feces into substances that can be used by other organisms, and is known as the "scavenger of nature", which is beneficial to humans. In general, there are many beneficial insects in life, but not all beneficial insects are beneficial to humans, such as mole crickets can be used as medicine, but they are also pests in the crop field, harming crops.

Parasitic wasps (Bee family, Wasp family, Bee family, etc.).

Bee praying mantis. Dragonfly ladybug (not all varieties of ladybug are beneficial).

Hunting bugs and bees. Spider ants.

Earthworm fireflies.

Lacewings. Aphid-eating flies and corpse-eating insects are also known as burial insects.

Parasitic wasps such as tiger beetles lay eggs on pests.

The mothweed (a species of earthworm wasp) preys on pests.

The name of the earth bee is the moth, which belongs to the category of slender-waisted bees. It is a creature that has only males and no females, and does not mate or give birth. It often feeds on the larvae of the longhorn beetle or the larvae of the locust, and these larvae become its own larvae after its rearing.

Some people also call the larvae of the longhorn beetle "moths". The Book of Songs says: "The moth has a larvae, and the fruit beetle carries it to raise."

That's how it is said.

A tiny flathead mud wasp can kill cockroaches larger than him.

Hornets can kill cicadas.

Fireflies and snails are natural enemies.

White-fronted stilts treat cockroaches as a meal.

Spiders that lay a web to catch pests.

Ladybugs eat aphids.

Scorpions prey on pests.

In fact, the predatory insects such as scorpions, centipedes, and worms that we are afraid of all have a beneficial side to people.

Beneficial insects include bees, dragonflies, cicadas, seven-star ladybugs and praying mantis and other insects, among which bees belong to social insects, bee colonies are divided into worker bees, drones, queen bees, dragonflies are invertebrates, feed on flies and mosquitoes, cicadas are also called Zhi, mainly distributed in temperate zones, grasslands and forests in tropical areas.

Insects that are beneficial insects include the seven-star ladybug, which loves to eat aphids, dragonflies, red-eyed bees, bees, aphid-eating flies, lacewings, praying mantises, etc., they are the natural enemies of pests and the guardians of farmers' fields.

1. Bees: Bees work non-stop to obtain food, collecting honey during the day and making honey at night, and at the same time completing pollination tasks for fruit trees and an important medium for pollinating crops. 2. Seven-star ladybug:

It is a predatory natural enemy insect of the Coleoptera ladybugidae, and the adult can prey on wheat aphid, cotton aphid, locust aphid, peach aphid, scale insects, ticks and other pests. 3. Praying mantis: A common name for insects of the class Mantis order, which usually feed on catching other species of insects.

Beneficial insects include: bees, dragonflies, ladybugs, praying mantises, lacewings, etc.

There are too many beneficial insects that insects, and the only ones I know are bees, dragonflies, seven-star ladybugs, and praying mantises.

1. Dragonflies: Specialized in preying on flies.

Mosquitoes, leafhoppers, midges and small butterfly moths and other agricultural, forestry and animal husbandry pests.

2. Bees: pollinate crops, fruit trees, vegetables, pastures, camellia crops and traditional Chinese medicine plants to increase yield.

3. Seven-star ladybug.

It feeds on aphids, sometimes small soil particles, fungal spores and some small insects, and often pollen from plants in autumn.

4. Earthworms. Earthworms dig holes to loosen the soil and decompose organic matter, create good conditions for the growth and reproduction of soil microorganisms, and play a special role in soil improvement, pollution elimination, and protection of the ecological environment, as well as in material cycle and biodiversity.

5. Fecal shell mantis.

It usually feeds on feces or humus and plays an important role in the balance of the ecosystem.

Insects: Insects are of great variety and morphology, belonging to the arthropods of invertebrates, and are the most numerous animal groups on the planet, accounting for more than 50% of all biological species (including bacteria, fungi, and viruses), and their traces are found in almost every corner of the world.

Common beneficial insects include dragonflies, praying mantises, spiders, seven-star ladybugs, frogs, etc.

1. Dragonflies are carnivorous insects that specialize in mosquitoes, flies and other small insects as food. A large green dragonfly, commonly known as the "green flute", can eat about 2,000 aphids and other small flying insects a day. It eats mosquitoes, flies, and the like, of course, and welcomes all small moths and insects that can fly and crawl.

2. The praying mantis is a veritable beneficial insect. It is a carnivorous insect, and its food includes cotton aphids, red bollworms, corn borers, vegetable borers, cabbage insects, beetles, flies, grasshoppers and other more than 60 kinds of pests and larvae, and the praying mantis is also the sworn enemy of locusts.

3. Spiders and spiders are the most abundant predatory natural enemies in terrestrial ecosystems, and their role in maintaining the stability of agricultural and forestry ecosystems cannot be ignored. The body is 1 90 mm long, and the body is divided into two parts: cephalothorax (anterior) and abdominal (posterior), and the cephalothorax is covered with dorsal armor and chest plate. There are two pairs of appendages in the cephalothorax, the first pair is chelicera, with chelicera, and the tip of the chelicera has a toxic gland opening; The chelicerae of the order straight palatine move anteriorly and backward, and the clamp of the order palatine moves laterally and in opposite directions.

4. Seven-star ladybug Seven-star ladybug is the most common ladybug in Europe. Its elytra are red in color, but there are three black dots on each side, and another black dot on two elytra**, for a total of seven black dots, hence its scientific name. The ecological distribution of the seven-star ladybug is very wide, and there are traces of aphids almost everywhere there are them.

5. FrogsFrogs often inhabit rivers, ponds and rice paddies, and are mainly active in the grass near the water, and sometimes they can also lurk in the water. Most of them are active at night, eating insects as their staple food, and also eating some snails, snails, small shrimp, small fish, etc. The vast majority of the insects eaten are agricultural pests.

Beneficial insects are as follows:

1. What is a beneficial insect for silkworms? To humans, silkworms are undoubtedly a beneficial insect. Silkworms, also known as silkworms and silkworms, are one of the economic insects that spin silk and cocoons on mulberry leaves.

The main objects of mulberry silkworm cultivation are cocoons and silk. Silkworms go through four distinct stages of development in terms of morphology and physiological function: egg, larva, pupae and adult.

Different parts and metabolites at different stages of development have a wide range of medicinal properties.

2. Seven-star ladybug:

The seven-star ladybug is a beautiful insect that belongs to the ladybug family and the ladybug genus. It is also a well-known beneficial insect that is widely distributed in Africa, Europe, and Asia. The seven-star ladybug goes through four different stages of development:

Eggs, larvae, pupae and adults. The developmental duration of each insect state is mainly influenced by food and temperature.

3 praying mantises. The praying mantis is a carnivorous insect. Both adults and nymphs are carnivores. It feeds on other insects and small animals.

It is a well-known beneficial insect in agriculture and forestry. The praying mantis is characterized by having two "broadblades", that is, a row of hard, serrated forelimbs with a hook at the end to catch its prey; The head is triangular and rotates flexibly; compound eyes prominent, large and bright; slender antennae; The neck can rotate freely, the mouth is chewed, and the palate is strong.

4, shell lang.

Among beneficial insects, you can't imagine that the fecal shell lang is also a common beneficial insect. The dung beetle is the scientific name of the dung beetle, belonging to the family Coleoptera golden tortoiseshell, with a black or dark brown body and large and medium-sized insects. There are more than 20,000 species of dung beetles in the world, which are found on any continent except Antarctica.

Most dung beetles feed on feces, usually on feces or humus. They play an important role in the balance of ecosystems and are known as "nature's scavengers". In addition, its ecological value also includes the transportation of manure to the ground, the secondary dispersal of seeds, pollination, pest control and the intermediate host role of parasites, as well as the development and application prospects, important biomimetic significance and great theoretical significance of Guangxi.

5. Aphid flies.

Aphid-eating flies are beneficial insects that are harmless to humans. Aphid-eating flies are distributed in many parts of China and are particularly diverse. There are about 350 species from south to north, and their shape is very similar to that of bees.

The main difference between an aphid-eating fly and a bee is that an aphid-eating fly has no sharp spines on its tail and only a pair of wings and a very short antennae on its head. Flies that feed on aphids as juveniles feed mainly on plants and aphids as adults. They are considered beneficial insects.

Aphid flies often fly around among flowers and plants. They also play a role in dispersal during the consumption of pollen, which contributes greatly to inter-plant pollination.

1. Common insects mainly include butterflies, bees, grasshoppers, moths, caterpillars, beetles, flies, mosquitoes, insects, praying mantises, dragonflies, fireflies, snails, caterpillars, earthworms, mosquitoes, flies, cockroaches, ants, locusts, feces, grasshoppers, pupa, silkworms, cicadas, centipedes, bed bugs, beetles, seven-star ladybugs, fleas, lice, e, crickets, termites, scorpions, spiders, grasshoppers, mealworms, crickets, etc.

2. The common beneficial insects mainly include ash worms, lac worms, horned dragonflies, seven-star ladybugs, bees, red-eyed bees, some ants, praying mantises and other insects. Aphid (gallnut), silkworm, silkworm, grate silkworm, maple (camphor) silkworm, state touch bee, etc.