What pesticides do grasshoppers use to control grasshoppers?

Grasshoppers, also known as locusts, are common insects in the field. They like to eat plant stems and do harm to the growth of crops. Farmers have a headache when they see them. What pesticides do grasshoppers use to control them?

What pesticides do grasshoppers use to control grasshoppers?

Grasshoppers can be controlled with pesticides such as dichlorvos, malathion, cypermethrin, deltamethrin, Metarhizium anisopliae and azadirachtin. For grasshoppers over 3 years old, 75% malathion EC can be used for ultra-low volume or low capacity spray, or 45% malathion EC can be used for ultra-low volume spraying, with 75 grams per mu. These pesticides are slightly toxic and pollute the environment to a certain extent, so it is necessary to do a good job in prevention and control when planting crops.

Second, how to prevent and control grasshoppers?

1. Agricultural prevention and control

(1) build water conservancy projects to ensure that there are no droughts and floods.

(2) to reclaim wasteland in a large area, change the habitat of locusts and reduce the area of the occurrence base.

(3) planting trees to change the microclimate of locust areas and reduce the suitable places for migratory locusts to spawn and reproduce.

(4) improve tillage and cultivation techniques to control locust eggs, adjust measures to local conditions, change crop distribution-- reduce locust infestation.

2. Biological control

The main results are as follows: (1) in locust disaster areas, agricultural and biological pesticides with high efficiency and low toxicity are used to protect predatory natural enemies.

(2) large area application of locust microsporidia.

3. Chemical control

Large-scale use of insecticides to control locusts should be mastered before the 3rd instar. Ultra-low volume or low volume spray with 75% malathion EC. Aircraft control uses 60 grams per mu; ground spray, 75 grams per mu, or 45% malathion EC ground ultra-low volume spraying, 75 grams per mu, or 20% dimethophos mixture, 100 grams or 1.5% lindan powder per mu, 1.5 kilograms per mu.