Rice has always been one of the main food crops in China. Therefore, the issue of rice planting technology has always been the focus of farmers' friends. Today we are going to talk about the occurrence characteristics and control strategies of rice planthoppers. During the planting period, the rice is only likely to be high-yield! 1 Characteristics of rice planthopper occurrence 1.1 Long duration Due to the vast territory of China and the complex and diverse topography, there are subtle differences in the cultivation of crops. There are three ripeties in a year, two cooked in one year, and three cooked in two years. For example, in China's coastal areas, the climate is suitable. Planting rice includes early rice, medium rice, and late rice. It can be said that there is a bumper harvest of rice all year round. If the prevention of pests and diseases is not done during planting, it will be extremely important for rice harvest. Impact. Rice planthoppers have strong reproductive capacity, and they also have the habit of long-distance migration. In the spring of each year, a small number of rice planthoppers will migrate into southern China. After the early rice matures, they will borrow southwest wind or It is the south wind that moved into the Yangtze River. Basically, from early rice fields to early October, rice planthoppers are likely to appear. In general, rice planthoppers can be said to have never been cut off during the growth of rice. In the spring, due to climate, they mainly gather in the south. After the climate is warming, they will be transferred to the central and western regions of China. long. 1.2 The number of outbreaks is huge As the main pests and diseases during rice planting, rice planthoppers are similar to aphids. Once the control measures are not in place, their explosive power is very alarming. Rice planthoppers have a strong reproductive capacity. A rice planthopper can produce dozens of young eggs at a time, and their growth cycle is relatively short. Therefore, if people do not control timely when planting rice, it is likely to cause large-scale development and spread, causing serious pests. Moreover, due to long-term flight, rice planthoppers are also contaminated with a large number of viruses. Once infected with rice, rice is likely to suffer from dead leaf disease and affect its normal growth. 2 Prevention and control measures of rice planthopper 2.1 Selection of varieties resistant to insects and high insects When controlling rice planthoppers, it is difficult to completely kill or extinction rice planthoppers from the roots, because even if they kill all the rice planthoppers in our country, they can move from other areas. Therefore, if you want to do a good job in prevention and control, you can't just start by killing the rice planthopper. You need to consider it in many ways and start from multiple angles. After long-term practice research, it is found that when rice blast is prevented, it is an effective method to select rice varieties with high resistance to insects. For example, hybrid rice seeds such as Weiyou 191, II You 6078 and Guofeng No. 1 have strong resistance to insects and can effectively prevent the damage and erosion of rice planthoppers. 2.2 Rational fertilization Rational fertilization is also an important method to prevent rice planthoppers. When fertilizing, some farmers intended to make rice grow stronger. When fertilizing, blindly throwing inorganic fertilizer into rice fields, this method will not only make rice grow healthily, but it will easily make the rice water rich. Nutritional. For this reason, during the cultivation of rice, it is necessary to apply scientific and rational fertilization, pay attention to the balance of fertilizers such as nitrogen, phosphorus and potassium, and use inorganic fertilizers and organic fertilizers together to control the occurrence of seedlings and increase the pest resistance of rice. Ability to create an environment that is not conducive to the growth and development of rice planthoppers, and promote the healthy growth of rice. 2.3 Elimination of wintering insect sources The climate change of the four seasons in most parts of China is more obvious, so most of the rice planthoppers do not overwinter in China, and most of them migrated in the spring. However, in the southern coastal areas, the climate is warm, and there are still many rice planthoppers that will winter in the area. Therefore, in the control of rice planthoppers, it is also necessary to eliminate the wintering insect source. For example, rice planthopper likes to overwinter in the weed stems in the field. After harvesting the rice, the farmers can wait for a while, through the winter. The method of composting, eradicating the weeds in the field, destroying the insect source as much as possible. 2.4 Proper spraying of pesticides When planting rice, pesticides must be sprayed to prevent various pests and diseases. When preventing rice planthoppers, pesticides should also be used. When spraying pesticides, farmers should pay attention to the application of pesticides. The place where it is easy to live, to ensure that the stem parts of rice can be exposed to the potion, because these parts are the places where the eggs of the rice planthopper are most likely to accumulate. Through reasonable spraying, the control effect is effectively improved. 2.5 Strengthen organizational leadership and implement measures in a timely manner Taking the prevention and control of rice planthopper as a major event in the current agricultural mission is an urgent task. The prevention and control of rice planthoppers starts from six aspects: one is to clarify the overall requirements for the prevention and control of rice pests and diseases; the other is to concentrate, contiguous, and prevent the rule, to ensure the control effect, to ensure the harvest of the year; the third is to master and control the time Comprehensive prevention and control within 7~10d, control the hazard, prevent the trend of harm aggravation; Fourth, choose the right medicine; fifth, strengthen the prevention and control of the organization of rice planthopper, effectively strengthen leadership, and fully implement the responsibility system for pest control; The sixth is to strengthen coordination and cooperation between organizations to promote the formation of joint prevention and control by departments. The above is the whole content that Huinong.com has brought to you today. In summary, we must know that in the rice growing season, we must do a good job in the prevention and control of rice planthoppers, so as to better promote the growth of rice and improve food. The output will increase the income of farmers. The several prevention measures mentioned above are just the tip of the iceberg. With the continuous development and progress of science and technology, there will be more and better prevention and control measures to solve the pests and diseases in the future, and promote the rice planting in China in a better direction. development of. We are a professional Chinese manufacturer of Porcine Extract Powder; we supply various products of Pig Extract Powder, and can providing product images and basic parameters with each Hog Extract and Pig Placenta Extract. We have the perfect after-sales service and technical support. Please do not hesitate to contact us, Look forward to your cooperation! 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