Matrine is a natural plant-wide broad-spectrum insecticide mainly used for spraying. It can also be used for soil treatment or root irrigation when controlling underground pests. What is the method of matrine to control crop pests? Let's get together to understand.
The main dosage form of matrine:
O.2%. 0.26%. 0:3%, o.36%, o.5% water agent
O.36%, o- 38%, 1% soluble liquid
O.3%, o.38%, 2.5% emulsifiable concentrate, 0.3%, 1.1% powder
First, prevention and control of vegetable pests
The common commercial active ingredient of the cabbage caterpillar is o.3~o.5g, for example, 60-90 ml of o.5% water agent.
For the prevention and control of vegetable mites, use 50-70 ml of o.3% water agent or 80-120 ml of o.38% soluble liquid agent.
Control Plutella xylostella: spraying at the peak of egg hatching to the young larvae (2 to 3 years old), using 100% to 150 grams of 0.3% water per 667 square meters, or 80 to 120 grams of 0.36% water.
Control the millet worm: 1% soluble liquid 30~45 ml, or 2% water 1 5-20 ml, spray evenly with 40-50 kg. The agent has a good effect on young larvae and is less sensitive to 4 to 5 instar larvae.
Prevention and control of amaranth, in the early stage of the amaranth, the use of 1% soluble liquid 2 ~ 4 kg, plus water 1000 ~ 2000 kg irrigation.
Prevention and control of small tigers, using o.3% powder 2-5 ~ 3 kg, acupoint application.
Control cucumber downy mildew, use 120-160 ml of o.3% emulsifiable concentrate and spray 60-70 kg of water.
Second, tea tree pests
Control tea stalks and stalks with 0.38% emulsifiable oil 75-100 ml, control tea wool with 0.5% water agent 50-70 ml, spray on water.
Third, fruit tree pests
Control pear black spot disease, spray with 0.36% soluble liquid agent 600-800 times.
Control the apple tree red spider, use 0.2% water agent 250 ~ 750 ml, spray on water.
Fourth, prevention and control of field crops
Control cotton red spiders with 0.2% water agent 250 ~ 500 ml,
5%水剂60～80毫å‡, used to control tobacco tobacco worms and mites.
Control the mucoids of millet land with a 0.3% water agent 150-250 ml, fogging the water.
To control underground pests in wheat fields, use 2 to 2.5 kilograms per mu, and apply soil by spraying or applying.
China Pesticide Network reminds you that the safety interval of matrine is 5 days, and the majority of farmers must pay attention!
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