How to control flying locusts? How to get rid of locusts

1. Agricultural control: 1. Reduce the food source of locusts. Many species of locusts eat corn, wheat, sorghum, rice, millet, etc., but do not eat soybeans, alfalfa, fruit trees, etc.

Therefore, locusts can be controlled by planting as many soybeans, alfalfa, fruit trees and other trees as possible in locust areas. 2. Reduce the habitat of locusts. Some locusts occur in low-lying areas, and such plots can be converted into ponds to raise fish and shrimp, which can greatly reduce the habitat of locusts.

3. Reduce the spawning grounds of locusts.

2. Biological control: 1. Protect and use the natural enemies of local locusts. Locusts have many natural predators, including frogs, lizards, birds, fungi, viruses, nematodes, predatory beetles, parasitic bees, parasitic flies, etc.

Ants, beetles, corianders, beeflies, and insectivorous flies are all important predatory natural enemies of locusts. 2. Use biological pesticides for prevention and control. At present, the biological pesticides used to control locusts are locust microsporidia, Metarhizium aeruginosa and azadirachtin.

Microsporidia locusts are locust-obligate, single-celled protozoans. Locusts can cause microsporidiasis when they feed on food with microsporidiasis. Metarhizium aeruginosa is a pathogenic fungus of locusts.

After the locust comes into contact with the fungus, the fungus can penetrate the locust's ** (body wall) and enter the locust's body to multiply, or produce toxins, or the mycelium is covered in the locust's body to kill the locust. Azadirachtin is a substance extracted from a tree called neem and belongs to the insecticide of plant origin. 3. Biological control is to control locusts by herding chickens and ducks.

Herding chickens and ducks to control locusts is to raise chickens and ducks to eat locusts and achieve the purpose of eliminating locusts.

Flying locusts are not very harmful when they are larvae, and they only occur when they grow to 5 instars and become adults, that is, "if they don't take off, they don't become disasters", so the key to exterminating locusts is to eliminate locusts before they take off. Chemical pesticides are generally used for emergency control in high-density locust areas, and ecological control and biological pesticides can be used in low-density mantis areas. (1) Agricultural control

Water conservancy should be built and drainage and irrigation facilities will be built to make drought and flood disasters free and conducive to land cultivation and utilization. Pay attention to intensive cultivation, generally plough the cultivated land twice, and do deep ploughing, not only conducive to sowing and crop growth, but also can play a role in eliminating locust eggs. Changing the plant composition of the locust occurrence area and cultivating cash crops that the locusts do not crave food, such as castor, mulberry, beans, cotton, hemp, etc., can not only worsen the nutritional conditions of the locusts, but also develop side businesses.

Changing the microclimate of the place where it occurs (e.g., adjusting the temperature, humidity, wind speed, etc. in the field through sprinkler irrigation, tree planting and grass planting) can also reduce the suitable places for locusts to lay eggs and reproduce. (2) Biological control: The biological and ecological locust control methods that China is currently actively promoting in the locust control work are to use natural means to control the number of locusts, which is low cost and has no pollution to the environment.

For example, attracting pink starlings to exterminate mantises, and herding chickens and ducks to prey on flying locusts is also a good way to exterminate mantises. In recent years, China has also achieved a series of achievements in the application of locust microsporidia, Metarhizium aeruginosa and other biological agents to control locusts, proving that it has important potential in the control of locusts.

The application of biological control measures can reduce the amount of chemical pesticides used and reduce the pressure on the environment. (3) Chemical control: chemical prevention and control should be based on the area and density of the occurrence, do a good job in the combination of aircraft prevention and control and ground machinery prevention and control, the combination of comprehensive sweeping and key treatment, the combination of summer locust treatment and autumn locust sweeping, accurately grasp the locust situation, and annihilate the Huang locust before the third instar.

Use 900 1350 ml of 50% malathion EC or 750 1050 ml of 40% dimethoate EC or 2250 3000 ml of 25% dimarathion EC per hectare, and 30 kg of 4% dimarathion powder can also be used to spray powder for control. When a large area occurs, locusts can be sprayed at ultra-low altitude by aircraft in flat locust areas.

Many chemical pesticides can be used to control locusts, and the main organophosphorus pesticides currently used to control locusts are malathion and dichlorvos; pyrethroid pesticides, deltamethrin, cypermethrin, etc.; Insect growth regulators, kayak, etc. There are also many pesticides that are mixed, such as fast killing, and so on. At present, the commonly used pesticides for ground chemical control are:

75% malathion oil, dicarpylamine, 5% carcarrot, 45% dimara emulsifiable concentrate, 30% ocyanide emulsifiable concentrate, etc. It can be sprayed according to the instructions for use of the above pesticides. The application methods of these pesticides are mainly ultra-low spray (spraying 10-15 hectares) and low-volume spraying (spraying 10-15 hectares) for ground control.

It can also be appropriately used to spray powder or sprinkle poison bait for prevention and control. However, when using chemical pesticides, special attention should be paid to the selection of pesticides with high efficiency, low toxicity, low residue and high selectivity, and strict accordance with the operating procedures for pesticide use to ensure safety.

Locusts are most afraid of birds and frogs, ** locusts can be controlled by biological control, physical control methods, physical means can be used to intervene in the voyage mating and reproduction, and locusts can also introduce natural enemies, which are the most commonly used and most effective two methods, usually to plant more trees.

Frogs, toads, and birds, swallows, woodpeckers, owls, are all creatures that locusts are afraid of.

Locusts are most afraid of frogs, birds and lizards, and if you want to ** locusts, you have to put large numbers of frogs and birds in places where locusts are dense to prey on them.

Here's how to get rid of locusts:

1. In locust-stricken areas, let's use high-efficiency and low-toxicity agricultural and biological pesticides to protect the predatory natural enemies of locust areas. Chickens, ducks, geese and other poultry can also be stocked on the hillside for control.

2. Reduce the habitat of locusts, some locusts occur in low terrain, we can transform such plots into ponds, fish and shrimp farming, which can greatly reduce the habitat of locusts.

3. Build water conservancy to ensure that there are no disasters in drought and flood.

4. Reduce the food source of locusts, many kinds of locusts eat corn, wheat, sorghum, rice, millet, etc., but do not eat soybeans, alfalfa, fruit trees, etc. Therefore, planting as many soybeans, alfalfa, fruit trees and other trees as possible in the locust attack area can control locusts.

1. Control from the food chain. For locust control, we can also control it from the food chain, such as reducing the planting of corn, rice, and wheat to planting fruit trees and soybeans.

3. Stocking locusts and natural enemies. Locusts also have natural enemies, and for the natural enemies of locusts, if a locust plague breaks out, we can carry out stocking, such as herding chickens and ducks.