CATDOLL : CATDOLL: How can locusts be killed?

How to get rid of locusts:

1. Develop water conservancy projects to prevent drought and flood disasters. Reclaim land for planting to change the habitat of locusts and reduce the area of ​​locust outbreaks.

2. In locust-affected areas, use highly effective and low-toxic agricultural and biological pesticides to protect the predatory natural enemies in the locust areas. Chickens, ducks, geese and other poultry can also be raised on the hillsides for prevention and control.

3. Reduce the food source of locusts. Many species of locusts eat corn, wheat, sorghum, rice, millet, etc., but not soybeans, alfalfa, fruit trees, etc. Therefore, planting as many soybeans, alfalfa, fruit trees and other trees as possible in the areas where locusts occur can prevent and control locusts.

4. Reduce the living areas of locusts. Some locust-infested areas are located in low-lying areas. We can transform such land into ponds and raise fish and shrimps. This will greatly reduce the living areas of locusts and better prevent and control locusts.

Additional information:

Natural enemies of locusts:

1. Frogs

Almost all frogs are natural enemies of locusts. Frogs and locusts live in the same type of ecological environment. Low-lying areas, ponds, ditches, etc. with reeds and weeds are good living places for them. Therefore, frogs are the vanguard in restricting the survival and reproduction of locusts.

2. Spider

Spiders are distributed all over the world except Antarctica. They mostly feed on insects, other spiders, and myriapods. For spiders, there is not much difference between locusts, flies, and mosquitoes that hit their traps.

3. Birds

Birds that eat locusts include swallows, white-winged gulls, field wrens, etc., especially swallows. Birds that eat locusts need to prey on a large number of locusts during the brooding stage. For example, a pair of common swallows and a nest of chicks can eat more than 16,200 locusts per month.

Reference: Baidu Encyclopedia - Locust

There are many ways to prevent and control locusts, mainly including agricultural control (ecological control), biological control, chemical control and physical control, etc. The goal of these control measures is to eliminate locusts and prevent them from harming crops. When preventing and controlling locusts, we emphasize prevention first, taking measures according to local conditions and time, and adopting simple, economical and effective methods. The so-called prevention first means that we should try to take timely action to kill locusts before the locust outbreak, or when the locust outbreak is low and the locusts have not caused damage to crops. Otherwise, taking action when the locust outbreak is serious will not only use more manpower and money, but also cause serious damage to crops. Sometimes farmers get anxious when they find locusts in the field. In order to kill locusts as soon as possible, they often use chemical pesticides to prevent and control locusts first. Although this can kill locusts quickly and avoid crop losses, it also kills a large number of locust natural enemies and causes serious pesticide pollution to the environment and crops. Sometimes, due to improper use of pesticides or poor application techniques, pesticide poisoning will occur during spraying. Therefore, over-emphasizing the use of chemical pesticides to control locusts will bring many adverse effects to farmers' production and life. Therefore, when controlling locusts, chemical pesticides should not be used first, but methods that are pollution-free to the environment and crops and safe to humans, livestock and poultry should be adopted, such as agricultural control and biological control. When locusts occur extremely seriously, it is also necessary to use chemical pesticides for control in a scientific way. Only in this way can the best control effect be achieved, which is in line with the long-term interests of farmers. The main methods of agricultural control can be summarized into three types: 1. Reduce the food source of locusts. Many kinds of locusts eat corn, wheat, sorghum, rice, millet, etc., but not soybeans, alfalfa, fruit trees, etc. Therefore, planting as many soybeans, alfalfa, fruit trees and other trees as possible in the locust occurrence area can control locusts; 2. Reduce the living area of ​​locusts. Some locust occurrence areas are low in terrain. We can transform such plots into ponds, raise fish and shrimp, which can greatly reduce the living area of ​​locusts and better control locusts; 3. Reduce the spawning area of ​​locusts. Some types of locusts, such as the East Asian migratory locust, like to lay eggs in dry and exposed plots. We need to increase the intensity of afforestation and increase the number of plants so that the plant coverage reaches more than 70%. Such plots are not suitable for locusts to lay eggs, and the damage caused by locusts can be reduced. Biological control There are three main biological control methods currently used: (1) protecting and using the natural enemies of local locusts to control locusts; (2) using biological pesticides to control locusts; (3) raising chickens and ducks to control locusts. Protect and use the natural enemies of local locusts. Locusts have many natural enemies, including frogs, lizards, birds, fungi, viruses, nematodes, predatory beetles, parasitic bees, parasitic flies, etc. Many types of frogs or toads can eat locusts, such as the marsh frog, golden line frog, forest frog, black-spotted frog, black-spotted toad, Chinese giant toad, etc. The black-spotted frog can prey on more than 135 locust nymphs per day. The marsh frog can prey on more than 122 locust nymphs per day. A toad can prey on 167 locusts a day. It is common knowledge that birds eat insects in nature. There are records of birds eating locusts in ancient China. For example, in the Tang Dynasty, there were records of tens of millions of white birds eating locusts. They ate all the locusts in one night and saved the crops. There are 18 species of birds recorded eating locusts in my country, including seagulls, shrikes, gray magpies, magpies, egrets, starlings, etc. I once observed a large number of seagulls flying to the areas with high occurrence rates to prey on locusts at the East Asian migratory locust outbreak base in Tianjin Dagang Reservoir. Ants, ground beetles, blue scorpions, young bee flies, robber flies, etc. are all important predatory natural enemy insects of locusts. They can often be seen preying on locusts in the areas where locusts occur. And the parasitic wasps of locusts are parasitic natural enemy insects of locusts. In nature, they can eliminate a large part of locusts and generally effectively control the outbreak of locust plagues, unless for some reason, the natural enemies of locusts are unable to control the locusts and then the locusts will break out. Therefore, protecting and making good use of local natural enemies of locusts plays an important role in controlling locusts. Planting plants that can attract natural enemies, such as the larvae of Chinese honey flies and yellow lilies prey on locust eggs, and the adults feed on nectar or flowers. Therefore, flowering plants can be planted in locust occurrence areas to provide supplementary food for natural enemy adults, increase the number of natural enemies, and control locusts; 1. Build nests for birds in locust occurrence areas to attract birds to settle down and prevent and control locusts; 2. Prevent indiscriminate hunting and killing of frogs to maintain the number of frogs in nature; 4. When applying chemical pesticides, avoid the occurrence period of natural enemies, or the location of occurrence, and try to use highly selective pesticides, that is, these pesticides only have a killing effect on locusts, but not on natural enemies. Biological pesticide control teacher: The biological pesticides currently used to control locusts include locust microsporidia, green muscardine and azadirachtin. Locust microsporidia are single-celled protozoa that are specific to locusts. After locusts eat food containing microsporidia, they can cause microsporidiosis in locusts. After a period of time, the locusts become slow and unable to fly due to the disease, and their egg production decreases until they die. Once a locust is infected with microsporidiosis, it becomes a source of infection, spreading microsporidia everywhere, and the eggs laid by sick locusts also carry microsporidia. This disease can spread among locust swarms through food contamination and locusts biting each other, forming a long-term epidemic, just like the flu. Therefore, after one prevention and control, the disease can be prevalent in the locust swarm for many years.

To control locusts, you can spray a large amount of adhesive on the Mensha and spread the net on the crop field. The locusts will stick to the crop field when they fly to it.

Locusts are everywhere, causing locust plagues in many African countries. When locusts come, what good strategies does my country have to defeat the enemy? Fighting chickens and fighting ducks, special forces of chickens and ducks, are very effective in dealing with locusts!

You can also spray pesticides on crops in a field attacked by locusts, and the locusts will die after eating them.