Cicadas, golden cicadas, you know, there are many places with different names, is the cicada a pest

For people who have lived in rural areas for a long time, the mention of cicadas will not be unfamiliar to them, but on the contrary, they will feel very familiar. Especially in the summer, whenever you go to the countryside, you will see a large group of children, holding branches in one hand and empty bottles in the other, digging cicadas under the hollows of trees. Since cicadas can bring joy to children, are cicadas pests or beneficial insects?

In fact, cicadas are both pests and beneficial insects. It may sound contradictory, but it's actually easy to understand, just as everything has two sides, whether it's cicadas or other animals in nature, they can be both pests and beneficial insects. This means that cicadas can freely change between the two titles of pest and beneficial insect for different objects.

For trees, cicadas inadvertently act as pests, and the reason for this is that cicadas affect the normal growth of trees. Cicada larvae prefer to live in the soil, usually by their mouthparts to feed on the sap from the tree's roots, which will also cause the tree to die and affect the normal growth rate of the tree. If cicadas live on some fruit trees in large numbers, they will not only "slow down" the growth rate of fruit trees, but even affect the quality of fruit produced by fruit trees.

Because cicadas have various nutrients needed by humans, such as protein, calcium, iron, phosphorus and other substances, for some farmers and people who like to eat cicadas, cicadas have become representatives of beneficial insects in their eyes, and cicadas can not only become delicious delicacies in their eyes, but also bring them certain benefits. Because cicadas contain a lot of high protein, eating them will have a higher protein intake than eating some meat and egg foods. Because cicadas have such edible value, many farmers have begun to consider raising cicadas, and when the cicadas have reached a certain stage of development, they will sell them.

All in all, cicadas can cause harm to trees, but they can bring food value to humans.

Cicadas are pests. The food of cicadas is mainly the sap of plant roots, so it will affect the growth of trees, and in severe cases, it can lead to tree death.

It's a pest. It sucks the sap of the plant and is very harmful to the tree, so it is a pest.

There is no difference between cicadas and knowing. Zhili is the common name of the cicada, because people feel that the sound of the cicada is very similar to "know, know", so the cicada is called Zhili.

The male cicada has a vocabulator on his abdomen, which seems to be covered with a tympanic membrane.

In the large drum, the eardrum vibrates and produces sound, and because the sound muscle can expand and contract about 10,000 times per second, the gap between the cover plate and the eardrum is empty, which can play a resonant role.

Cicadas love to suck the sap from the tips of large trees. They usually stay all day, two or three together, and don't fly away easily. They spray liquids when they are scared, and some species of cicadas are nocturnal and prefer to fly to places with strong light. It's easy to get caught.

Lifespan and characteristics of cicadas:

The cicada's lifespan generally ranges from one month to more than ten years, and its larval period is spent underground, where they survive by sucking the sap from the roots and tendrils of trees.

Golden Cicada. The larvae usually live underground for about 1 to 2 years, then dig holes and climb trees to molt to become adults, and then they spend the last month completing their final mission. The lifespan of lime may be much shorter than that of golden cicadas.

Not all cicadas bai

will call, only the male cicada will call. The reason why the cicada keeps screaming like this is that it chatters endlessly to summon its female companions. Different species of cicadas do not attract each other, only the same species of cicadas attract each other.

The male cicada has a pair of articulators at the front of his abdomen, from which the chirp comes from. Outside the articulator are a pair of semicircular covers, inside which there is an elastic membrane called the "tympanic membrane", which is connected to the vocal muscles. During pronunciation, the vocal muscles contract, causing the eardrum to vibrate to produce sound, and the sound resonates in the space under the cover plate, and the sound is produced"Know, know"The sound of the cry, so the sound of knowing is very loud.

The female cicada has no articulator and is a "mute".

Male cicadas can chirp, while female cicadas do not have vocalizers and cannot call. The male cicada's articulator is in the abdominal muscles, like a large drum covered with a layer of tympanic membrane, the eardrum is subjected to capacitive vibration and produces sound, because the vocal muscle can be expanded and contracted about 10,000 times per second, and the cover plate and the eardrum are empty, which can play a resonant role, so its sound is particularly loud. The one on the right in the picture below is the male cicada, and the two pieces of the abdomen are the vocalizers.

The cicada is a large insect.

Cicadas are a class of organisms of the phylum Arthropods, Insecta, Hemiptera, and Cicadaceae. There are about 3,000 species known. The reason why we have the illusion that cicadas have a short life is because of their unique life cycle.

The life of a cicada goes through three stages: fertilized egg, larvae, and adult. In the summer, fertilized eggs laid in the early years hatch into larvae, which burrow into the soil and feed on the sap of plant rhizomes. When the larvae mature, they crawl to the ground, shed their golden exoskeletons, and emerge into our common winged adults.

Although adult cicadas only live for a few months, the larval stage can survive in the soil for many years, such as the larval stage of a cicada with a 6-year lifespan, which accounts for 5 years of its life.

The following is the ** that knows how to turn from larvae to adults

"Knowing" is what we usually call "cicadas", which belong to insects.

Cicadas are biologically classified as: animal kingdom; phylum Arthropods; Six-legged subphylum; Insecta；winged subclasses; Hemiptera (formerly Homoptera); Cicadidae.

Do you know whether it is a beneficial insect or a pest in the insect world?