Grasshoppers, commonly known as "grasshoppers", belong to Orthoptera, including Tetrigoidea, Eutetrigioidea and Acridoidea. There are more than 10000 species in the world, and there are more than 1000 species in China, which are distributed all over the world.

Locusts mainly include locusts and earthworms. Is there an oriental migratory locust in China? (Meyen)), Locust (Linnaeus), Locust in Tibet? Chen) 3 kinds;

Among them, Locusta migratoria manilensis is the most widely distributed and the most harmful in China. It is the most important locust species that causes locust disasters in China, mainly endangering gramineous plants, and is an agricultural pest.

Extended data:

Annual life history:

Grasshoppers generally belong to facultative diapause insects, and most of them overwinter with eggs in oocysts in the soil. Only a few species such as Japanese yellow-ridged locust and short-legged spotted locust overwinter as adults. The number of generations of 1 year depends on the biological characteristics of species, annual effective accumulated temperature, food, light and the growth and development of various insect states in different regions.

For example, the Asian migratory locust has 1 generation in China. The distribution of Locusta migratoria manilensis in the middle and lower reaches of the Yangtze River and its north in China is 2 generations, while the high temperature and drought years in the Yangtze River and Huaihe River basins are 3 generations or incomplete 3 generations. 4~5 generations in South China. There are 1 generation in the Yangtze River and its north, and 2 generations in the south of the Yangtze River.

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