Spray pesticides: 50% can be used to reduce the fog 3000 ~ 4000 times solution or 50% phoxim EC 1500 times or 50% malathion EC 1000 times or 10% imidacloprid WP 5000 times Wait. In order to improve the control effect, a certain amount of adhesive agent can be added to the drug solution, and several agents are alternately used to avoid using a single agent.
Pharmaceutic dry: Apply 40% Dimethoate EC, add 1 unit of multi-functional plant synergist, add 2 portions of water, and mix and mix the liquids. Use a brush to apply a 10 cm wide pharmacy ring on the trunk. If the bark is rough, the old rough skin can be scraped off and then coated. After coating with newspaper or plastic film can be wrapped.
Trunk injection: In the trunk, use an iron cone to incline from the top to the bottom, deep to the xylem, and then use injection needles to inject 40% dimethoate EC 1 ml, close the orifice, 2 to 3 days after the 95% Above the locust kills.
Protection of natural enemies: Many natural enemies of locusts, such as ladybugs, hoverfly, grasshoppers, parasitic bees, etc., have a strong inhibitory effect on aphids. Therefore, it is necessary to spray as little as possible with broad-spectrum insecticides and to avoid spraying during natural enemies, in order to protect natural enemies and use natural enemies to eliminate aphids.
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