May 4, 2021 at 16:00 pm,
Received a netizen broke the news,
At the foot of the Shuicaoli Viaduct in Tangmucen Village, Liu Village Committee of Lianghe Countryside,
The willow trees are densely packed with grasshoppers.
Wherever the grasshoppers go,
The willow leaves have all been nibbled away, leaving only the branches.
Netizens said that there are only two days in these days.
And more and more every day.
Grasshoppers are small, but extremely destructive.
The riverside is everywhere,
Looking at it makes people feel like their scalps are tingling!
Locusts multiply very fast,
Failure to control locusts effectively will cause even greater disasters!
Netizens said that the locusts are all lumps.
Netizens caught one, all of which were small and small.
Locusts are also known as grasshopper manganese, grass manganese, grasshoppers, etc., for the orthoptera locusts collectively, distributed in the world's tropical, temperate grasslands and desert areas, the world has more than 10,000 species, China has more than 1,000 species, of which the East Asian locust in China the most widely distributed, the most serious harm, the following we will - up to see - to see whether the grasshopper is a beneficial insect or a pest!
Grasshoppers are beneficial or pests
Grasshoppers are agricultural pests. Grasshoppers are an important part of the agricultural, forestry and animal husbandry ecosystems, many harmful locust species can cause different degrees of harm to agriculture, forestry and animal husbandry, and there are more than 10,000 kinds of grasshoppers in the world, of which about 300 kinds of grasshoppers can cause harm to agriculture, forestry and animal husbandry, and grasshoppers can occur in the world except antarctica and the area north of 55° north latitude of Eurasia. The world's annual grasshoppers cover an area of 46.8 million square kilometers, and one-eighth of the world's population is often disturbed by locust plagues.
What are the hazards of grasshoppers
Grasshoppers mainly include flying locusts and soil locusts, soil locusts have a wide range of food, can eat wheat, rice, millet, corn, beans, tobacco, reeds, vegetables, fruit trees, trees and weeds leaves, young stems, buds and young fruits, etc., the leaves bite into missing or holes, when the occurrence can be eaten into a light rod or all eaten clean, causing serious economic losses. Flying locusts mainly feed on grasses and sedges, most like reeds, barnyard grass and red grass and other weeds, wheat, corn, sorghum, rice, millet, sugarcane, etc. in cultivated crops also like to eat, and when there is a lack of food, it can also harm crops such as cotton, soybeans and vegetables.
Prevention and control of grasshoppers
Agricultural control: The main methods of agricultural control of grasshoppers can be summarized into three types.
(1) Reduce food sources: Many species of grasshoppers eat corn, wheat, sorghum, rice, millet, etc., instead of soybeans, first seeds, fruit trees, etc. Therefore, planting as many soybeans, silkworms, fruit trees and other trees as possible in the place where grasshoppers occur can control grasshoppers.
(2) Reduce the living area: Some grasshoppers occur on a low terrain, we can transform such a plot into a pond, raise fish, raise shrimp, which can greatly reduce the survival of grasshoppers, and will also better control grasshoppers.
(3) Reduce spawning grounds: increase the intensity of afforestation, increase the number of plants, so that the plant coverage reaches more than 70%, so that the plot is not suitable for grasshoppers to spawn, and the harm of grasshoppers can be reduced.
Biological control: There are currently three main methods of material control of grasshoppers.
(1) Protect and use natural enemies to control grasshoppers, such as protecting frogs, lizards, birds, predatory beetles, parasitic bees, parasitic flies, etc.
(2) The use of biological pesticides to control grasshoppers, the current biological pesticides used to control grasshoppers are grasshopper microsporidium, green zombie and insinogen.
(3) The use of herding chickens and ducks to control grasshoppers, chickens and ducks also prey on grasshoppers, and at the same time increase the efficiency of agricultural production while controlling locusts.