Whenever cicadas are thirsty and hungry, they always insert hard mouthparts into the trunk to suck the juice all day, and suck a lot of nutrients and water into their bodies to prolong their life. Cicada grows in the soil before it is mature, then slowly digs a hole and climbs up the trunk. If there is mud in the soil-stealing hole, there will be cicadas. Cicada lies on the tree trunk at night to shed its shell, and then it has wings.
After the cicada sucks the sap of the tree, it will weaken the tree, make the branches die and affect the growth of the tree.
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Growth and reproduction
From June to July every year, pupae will become adults in just a few days, and then lay eggs. From the beginning of eggs to the process of nymphs living underground, until the last time they shell and become adults, they will make a scene in the trees. This period usually takes one to two years. Among them, in cicadas, their larvae are also called "nymphs". Their male cicada will make sounds to attract the female cicada to mate with him. It is inserting the ovipositor tube at the top into the tree to lay eggs.
The larvae will not hatch until the second year, and then they will live in the soil for several years or even more than ten years before they break out. In the long life, they have to go through many times of shelling, and once shelled, they become adults. When they are adults, they will make a sound. The sound made by the male cicada will constantly vibrate the two drum membranes in the abdomen at a high frequency of hundreds of times per second, making a sharp and loud sound.
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