How is the flooding of rice planthopper more effective?

Abstract: Rice planthopper is serious, so drug control should be carried out in time.

Rice planthopper (Nilaparvata lugens) is one of the diseases and insect pests in rice. the breeding speed of pests is rapid and has an explosive trend. Therefore, the control of rice planthopper can not be solved by drugs, so for the control strategy of rice planthopper, we still focus on prevention and control, followed by control. Next, let's briefly talk about developing agriculture through science.

Biological control of rice planthopper

At present, there are no specific biological agents to achieve the eradication of rice planthopper, but in recent years, there are some biological control methods to reduce the harm of rice planthopper. In other words, the natural enemies of rice planthopper are used to restrain the outbreak of rice planthopper and control it.

Some studies have shown that the use of duck-rice symbiosis can greatly reduce the incidence of rice planthopper, and even achieve the control of rice planthopper. The control effect can reach 63.77-86.89%, and this model saves pesticides, green environmental protection and no pollution, which is also a direction worthy of development in the future. at the same time, duck breeding in paddy fields improves the economic benefits of planting in the fields.

Chemical pesticide control

At present, several pesticides which are more effective for rice planthopper are imidacloprid, buprofezin, enpyrimidine, thiazine and imidacloprid, which can be divided into two categories: nicotine insecticides and chitin synthesis inhibitors.

Nicotine insecticides: such as imidacloprid, imidacloprid, thiazide, which belong to nicotinic acetylcholine receptor agonists, kill insects through nerve blocking. This kind of insecticides have good internal absorption characteristics and osmotic activity, can contact and stomach kill, and have good efficacy against rice planthopper. And this kind of insecticide can also have a good effect on thrips, whitefly, leafhopper and so on in rice field.

Buprofezin belongs to chitin synthesis inhibitor, which reduces the number of eggs laid by insects, even causes the eggs to be unable to hatch, and can shorten the life span of insect pests, but its efficacy is long, and it usually takes a week to see a good effect.

For the specific use of these types of agents, there is not too much introduction here, and there is also a detailed introduction in the bag instructions. For the use of these chemicals, scientific agricultural development suggests that the method of rotation should be adopted. Do not choose the drug every time, this approach is easy to make rice planthopper to produce drug resistance, and the rotation of pesticides greatly reduces the probability of drug-resistant pests, and the efficacy will be better.

Here is science to promote agriculture, welcome to add attention, with you to grow knowledge.