The main types of chlorpyrifos are emulsifiable concentrates, granules, microemulsions, etc., which have very good contact, stomach and fumigation effects. In order to facilitate the farmers to learn more about chlorpyrifos, Xiaobian summarizes the main preparations and use. Let's take a look at it.
The main preparations of chlorpyrifos and their effects:
At present, domestic chlorpyrifos have emulsifiable concentrates, granules, microemulsions, etc. 1. For the control of crop pests such as wheat, rice, cotton, vegetables, soybeans and fruit trees, the most used is 40.7% chlorpyrifos, and the effect is also the best. 2, 5% granules mainly for the prevention and control of underground pests of melons and vegetables, is an excellent product to replace the highly toxic pesticide 3% carbofuran granules. 3, 30% microemulsion decomposes quickly and decomposes evenly into the water, which has low cost and good control effect.
How to use chlorpyrifos
First, the prevention and control of vegetable roots
1. Use 150% to 200 ml of 40% emulsifiable concentrate per acre, or 1.5 to 2.0 liters of 10% hypertonic emulsifiable concentrate, and 200 to 300 liters of water to water the roots of vegetables.
2, use 6% granules of 1.6 kg per acre, mix well with fine soil 5 kg, and spread along the vegetable. The effect on root sputum can reach 3 months.
Second, the prevention and control of peanuts
1. During the golden egg hatching period (peanut flowering period), use 40% emulsifiable concentrate of 400-500 ml, mix it with poisonous soil, remove the base of peanut plant, and cover it with thin soil.
2. The roots of peanuts are watered with 1500 times of 40% emulsifiable concentrate per acre, and the liquid is 300-400 liters per mu.
3. Sugarcane turtles that control sugarcane
When planting under sugar cane, use 40% to 40 ml of 40% emulsifiable concentrate, and mix it into toxic soil, spread it evenly on sugarcane seedlings, and then cover the soil.
There are three aspects to be aware of when using chlorpyrifos:
1. The residual time of chlorpyrifos on the leaves is not long, but the volatility in the soil is high, so the control effect on underground pests is good, but it has phytotoxicity to sensitive crops such as tobacco.
2. In agricultural production, chlorpyrifos has obvious control effects on various chewing and sucking mouthparts pests on rice, wheat, cotton, fruit trees, vegetables and tea trees.
3. Chlorpyrifos can also be used for the prevention and control of urban sanitary pests. It is mainly suitable for controlling pests and mites on lawns, and also for controlling ectoparasites such as mosquitoes, flies and other sanitary pests and livestock.
The above is about the use of chlorpyrifos, please pay attention to China Pesticide Network
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