Insecticide double, also known as insecticidal Dan, double sodium salt. It is a class of organic insecticides, an analog of the synthetic silkworm toxin, so it is also a biomimetic insecticide. The pure product of the insecticidal double is a white solid containing crystal water. The appearance of industrial products is brown or brown-red single-phase liquid and brown cylindrical loose particles. The insecticidal pair has a very strong contact and stomach function, and also has a certain fumigation function. At the same time, it is also a nerve poison. After the poisoning of the pest, the symptoms are phlegm and paralysis. According to the China Pesticide Network , it has a very strong systemic function for plants. Insecticides are usually used to cure a variety of pests such as corn, fruit trees, and vegetables.
1. Cure rice pests. It can effectively control a variety of pests such as rice leaf roller, rice planthopper and rice locust. Generally, about 25 ml of water is applied per acre, about 200 ml, and 50 kg to 60 kg of water is added for spraying. It is about 3 to 5 percent per mus of granules and about 1 kilogram to 1.5 kilograms.
2. Heal the pests of fruit trees. It can effectively cure apple leafhopper, citrus leaf miner, peach aphid and pear star caterpillar, and spray it with 25 to 500 times of water agent.
In the prevention and control of various pests and diseases, we need to pay attention to the use of insecticidal doubles:
1. The pesticide network reminds everyone: Note that the application of the insecticidal double on the rice crop can only be used up to 3 times, and the last application requires a distance of half a month.
2. Due to the high temperature in the hot summer, it is easy to cause phytotoxicity. It is forbidden to apply the cruciferous vegetable seedlings such as Chinese cabbage and cabbage.
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