Are cicada eggs on trees or underground? What is the reason for cicadas to lay eggs on trees but com

The life cycle of a cicada is divided into four stages, adult, egg, larvae, nymph.

Cicadas are the world's longest-lived insects, but they spend most of their lives underground. Cicada larvae generally live underground for 2 3 years, and long for 5 or 6 years. It is now known that the longest-lived cicadas are the 13-year-old and 17-year-old cicadas in the Americas, which only hatch every 13 or 17 years.

After a long underground life, the cicada larvae emerge from the ground, leaving small round holes in the ground. They emerge from the ground without wings, and they struggle to climb up the grass or treetops, and only after shedding their pale yellow coats do they become winged cicadas. After a few days, the male cicada began to sing, this is the male cicada courting the female cicada, this "know, know" sound, for the female cicada, is a wonderful love song.

They soon got married, and the female laid her eggs under the tender skin of the branches, and a few weeks later, the male and female cicadas had completed their task of continuing the species and died silently. The march of life continues. Soon, a new generation was born.

The larvae fall from the tree to the ground, burrow into the soil, and live a "secluded" life again. So the eggs of the cicadas are laid on the trees.

The eggs of the cicadas are on the trees. Cicadas lay their eggs on tree branches. The eggs of the cicada are carried underground by tree branches.

The female cicada uses an ovipositor to prick a circle of small holes in the young branches, lay the eggs inside the wood, and at the lower end of the young branches, pierce a circle of bast with the mouthparts, so that the branches are cut off from water and nutrients, and the young branches gradually die, and the branches are blown down to the ground by the wind. The eggs laid by the cicadas hatch in half a month.

Extend. The larvae of cicadas live in the soil and have a pair of strong digging forefeet. The sap of plant roots is sucked by the piercing and sucking mouthparts to weaken the tree, make the branches die, and affect the growth of the tree.

Usually stay in the soil for a few years or even more than ten years, such as 3 years, 5 years, and 17 years, these numbers have one thing in common, they are all prime numbers. This is because there are very few factors in prime numbers, and when they drill out of the soil, they can prevent them from drilling out with other cicadas and competing for territory and food. When it is about to be feathered, it burrows out of the surface at dusk and at night, climbs on a tree, and then grabs the bark of the tree to molt and feather.

When a black crack appears on the back of the cicada pupa, the molting process begins, the head comes out first, then the green body and wrinkled wings are revealed, and it stays for a moment to harden the wings and darken the color, and then it begins to take off. The whole process takes about an hour. At the end of June, the larvae begin to emerge into adults, and the newly emerged cicadas are green and have a maximum lifespan of about 60 to 70 days.

In late July, the female adults begin to lay eggs, and the peak oviposition is in early and mid-August, and the eggs are mostly laid on branches with a thickness of 4 to 5 mm. In summer, they make loud noises in the trees, suck the sap with a needle pricking mouthpiece, and the larvae inhabit the soil and suck the sap from the roots, which is harmful to the trees.

The life of a cicada goes through three different periods: egg, larva and adult. The eggs are laid on the tree, the larvae live underground, and the adults return to the tree. After the cicada mates, the male completes his mission and dies soon after.

The female cicada begins to lay eggs, it uses a pointed ovipositor to prick small holes in the branches, and the thorns lay four to eight grains at a time, and dozens of holes are often pierced on a branch, and then the female cicada does not eat or drink, and dies quickly.

The eggs laid by the cicadas hatch in half a month. The life period of young cicadas is particularly long, the shortest also lives underground for 2 3 years, generally 4 5 years, and the longest is 17 years. Young cicadas live underground for a long time, with warm winters and cool summers, and few natural predators to threaten, but they are also comfortable.

After 4 to 5 molts, they emerge from the ground and climb up the branches of trees for the last molt (called golden cicada shelling) to become adults.

What is the reason for cicadas to lay eggs on trees but come out of the ground?

Because after the cicada lays eggs on the branches, the larvae hatched from the eggs in the second year will eat the nutrients of the branches, and then the branches will fall to the ground, and the cicada larvae will crawl out of the branches to burrow into the ground, and then live underground for several years to more than ten years, feed on the sap of the roots, and then drill out of the soil, climb to the tree after shedding their shells, and become a new cicada.

The survival rate of those who remain on the tree is low. Not only is it windy and rainy outside, but there is also rain and snow, and the environment is too bad. Not only that, but there are many natural predators waiting for them.

I don't know how many changes I will have to go through in 3-5 years, but I guess I will survive in the end, or even "nothing". Underground, the environment is very comfortable, and the survival rate is extremely high. Even if you get caught climbing tree trunks in the future, it doesn't matter.

After all, there are many "brothers" underneath, and it is impossible for natural enemies to eat them all.

Spawning: Cicadas spend most of their lives underground. By the time they grow wings and can fly in the sky, they are already late in life.

Only at this moment can they make a splash. Almost no one knows that they have been underground for years or even a dozen years. Male cicadas often make screeching sounds to attract female cicadas.

After mating, the male cicada will look for other female cicadas and sow as many seeds of life as possible before life leaves, the female cicadas will find the greenest branch, make many small holes with mouthparts at the tender tip of the new branch, and then turn around and lay eggs in the holes. After the female cicada lays eggs on her body, she will die on the branches even after completing the task.

The branches withered and fell. The next summer, the larvae of the cicada hatch from the eggs, and then absorb the nutrients of the branches in the young branches until the branches dry up and fall off, and the larvae fall to the ground with the branches, and then burrow into the soil to feed on the sap of the underground roots, they have to live underground for 3 to 5 years, and the longest needs to live for more than ten years to mature.

In summary, the female cicada lays her eggs on the branches, and the branches wither and fall to the ground. After the eggs hatch, the young cicadas burrow into the ground and then naturally crawl out of the soil.

Of course, not all withered branches will eventually fall to the ground. Even if they don't fall, the newly hatched baby nymphs will climb down the trunk of the tree in June of the following year after wintering and burrow into the ground on their own.

That's all there is to know about cicadas laying eggs on trees but coming out of the ground, I hope it helps!

Because the eggs of the cicada will slowly turn into cicada ants, and then choose to come down from the tree, with their thin size, dig holes in the soil, bury themselves, and grow themselves by absorbing the sap from the roots, which is why the cicada eventually comes out of the ground.

Because in the fall, the larvae that he hatches in the tree will crawl out of the branches and fall to the ground, and live in the soft soil for 2 or 3 years, so as to reduce the attack of predators, and also retain water in the soil, suck the sap from the roots, and only become cicadas after two or three years.

After laying eggs on the tree, the larvae hatched from the eggs will eat up the nutrients of the leaves, and then as the branches fall to the ground, they will burrow into the soil, and will live underground for a few years to more than ten years, and then come out of the ground at the right time.

This is because during the laying process, the eggs are buried in the ground to ensure the temperature, so they will come out of the ground when the development is complete.

Cicadas lay their eggs on branches and hatch naturally in the sun, and the larvae are so small that they can only be seen under a microscope, and the larvae climb down the trunk and burrow into the ground, where they live by sucking the sap from the roots.

Our common Chinese monkey, generally three to four years old cicada, also known as the golden cicada, by the cicada adult lays eggs to the branches, withered and falls to the ground larvae into the soil, in the ground by sucking the sap of the roots of the tree to grow, after 3 to 4 years, after growing up will crawl out of the ground, generally climb to the tree to remove the skin of the young cicada, has grown into an adult, and then in about a month by sucking the sap in the branch for a living, during which the female cicada and the male cicada will mate and lay eggs, and so on.

The cicadas have laid their eggs in the soil before they come out......

Characteristics of the cicada's crypt: Most of the cicada's tunnels are fifteen or sixteen inches deep, with a wide underneath and a completely closed bottom. Crypts are often built on the roots of plants that contain sap, so that sap can be obtained from the roots. Able to climb up and down the cavity very casually.

The first appearance of cicadas each year is on the summer solstice. There are a number of small round holes on the sun-exposed road, and the orifices are level with the ground. The larvae of the cicada crawl out of these round holes and become full-fledged cicadas on the ground.

Cicadas prefer places with dry tops and plenty of sunshine. The larvae have a powerful tool capable of piercing through sun-dried dirt and sand. To investigate their abandoned storage rooms, they must be excavated with knives.

This small round hole is about an inch in diameter, and there is no soil around it. Most burrowing insects, such as golden dung trees, always have a mound of dirt outside the cave. This distinction is due to the difference in their working methods.

The work of the golden dung starts at the entrance of the hole, so the excavated waste is piled up on the ground. The cicada larvae come from the ground, and the final work is to open the gate. Since the door has not yet opened, it is impossible to pile up dirt at the door.

The larvae of cicadas live mainly in the soil underground. They feed on the sap of plant roots, which weakens the growth of trees and may even lead to the death of branches.

These larvae usually live underground for a long time, and some take years to complete their growth and development. In the process, they will constantly dig tunnels, secrete urine and mud to change the structure of the soil and create a suitable underground living environment for themselves.

When the larvae mature, they crawl out of the ground and emerge into cicadas. This process requires proper weather conditions, such as humidity and temperature. After feathering, the cicadas use their wings to fly to the trees, where they begin to live and disappear on the ground.

Therefore, cicada larvae mainly live in the soil underground, feed on the sap of plant roots, and spend a long period of growth and development underground.

The larvae of the cicada live in the soil and have a pair of strong digging forefeet. The sap of the roots of the plant is sucked by the piercing and sucking mouthparts, which weakens the strength of the tree, makes the branches die, and affects the growth of the tree.

Many people think that golden cicadas grow on trees, because every summer we can see Lu Ming climbing many golden cicadas on the trees and calling. But on the 5th, I told you that the golden cicada came out of the soil. So, why did the golden cicada come out of the soil? When will it come out?

The natural habits of the golden cicada.

The golden cicada generally completes the first generation in 3 5 years, and there are also cases where the first generation is completed in 5 6 years or 12 13 years. The egg population overwinters on the young branches of the current year or two years old and the nymphs of each instar are concentrated on the plant roots in the soil, that is, the overwintering insects are two types, the eggs and the nymphs of different sizes; Wintering sites are also divided into two environments: aboveground and underground.

The overwintering eggs begin to hatch in mid-May of the following year, and the hatching season is from late May to early June, and the hatching activity ends in late June. The eggs are mostly hatched in the afternoon during the day, accounting for about 80, and the number of eggs hatched at night is less, about 20. The egg period is close to 300 days.

When the low temperature was higher than 10 15, the sap began to flow, and the overwintering nymphs began to sting and feed.

Nymphs that hatch from overwintering eggs (called cicada ants) burrow into the soil and suck the sap from the roots of the host plant and are less mobile. As the age increases, they create earthen chambers of different sizes and shapes to live in. The outer surface of the soil is rough, the inner wall is smooth and moist, and part of the wall is attached to the roots of the plant for feeding.

When the temperature drops in autumn, they burrow into deep soil for wintering, and then migrate upward to the roots of trees after the spring is warm. The largest number of nymphs in the soil is in May, when the overwintering eggs hatch into the soil in large numbers, and the last instar nymphs are about to emerge and molt into adults.

When will the golden cicada be unearthed.

After completing the whole life process of nymphs in the soil, mature nymphs emerge from the soil from late May to mid-to-late August, crawl to shrub branches, weed stems, etc., and fix themselves on the bark branches and leaves with their claws and forefoot thorns, and molt and feather into adults. The peak of adult appearance is from mid-June to mid-July, and the end stage is in early October. About 20 days after the adult emerges, the tail lays eggs, and the eggs begin to lay in late June, and the adult eggs are in peak stage from the end of June to late August, and the end of egg laying is from early September to early October.

The final sight of adults is in early November. The egg-laying period of the adult worms can last from late June to early October.

What kind of weather is the golden cicada unearthed the most.

Summer days are most abundant after the rains.

From mid to late June (around the summer solstice) to early August (around the beginning of autumn), it is the best season for harvesting in the fields, and the weather is most concentrated in early July or after rain. The nymph (known turtle) digs a hole in the soil with a pair of jagged forelegs in the wet and soft ground, and after crawling out of the ground, it makes a short movement on the ground, and then prepares to molt on the trunk or trellis of the Fan Yuan, and the next morning at 4 6 o'clock it feathers into an adult cicada, which can be illuminated by a flashlight, and can be caught on the ground and trunk of the tree at night, or catch the young adult cicadas on the tree in the early morning.