First, the trend of the mid-late forecast According to the spirit of the city's Middle and Late Stage of Rice Diseases and Insects Symposium, the weather forecast from June to August in our district, combined with the current occurrence of pests and historical data, is comprehensively analyzed: the trend of major pests in the middle and late period is predicted. The general trend is 2 - Level 4, with moderate occurrence, is expected to occur in an area of ​​550,000 mu. Among them, the second generation of rice stem borer has an area of ​​about 130,000 mu, with a degree of occurrence of 3, which is a moderately-occurring year; rice leaffolder occurs around 110,000 mu, with a degree of occurrence of 3-4, which is a year of moderate preference; plus 6 - During the main rainy season in August, there was a lot of rainfall, which was beneficial to the migration and reproduction of rice planthoppers. The lights were on the first day of June 5 and 10 days later than last year. I stationed in Qinglong Village, Dasheng Town, June 13 and investigated rice. The number of pests in the growing plot is 290. It is estimated that an area of ​​100,000 mu will occur, with a degree of occurrence of 3-4. It is expected that the year will be moderately heavy; the rice sheath blight will occur in an area of ​​100,000 mu and the degree of occurrence will be 3 - Grade 4 is expected to be a year of moderate weight; rice blast (mainly panicle blast) occurs in an area of ​​20,000 mu, with a degree of occurrence of 3, and is expected to be a moderately-occurring year; other pests occurring in the area of ​​about 90,000 mu, The degree of occurrence of 2-3 levels is expected to occur in moderate years. Second, the prediction basis 1. According to the Yubei District Meteorological Bureau of Chongqing City, the average temperature in 2011 (January-December) is 16.3-18.3°C, which is normally slightly higher; the annual precipitation is 1000-1200mm, normal; there is a period of low temperature in winter; There is a low temperature in spring, no obvious spring drought and summer drought; in the main flood season (June-August), the precipitation is 350-450mm, normal; there is a general drought for 25-30 days in midsummer, and there are floods in some areas along the Yangtze River; (May-September) Droughts and floods are alternated, and floods are more important than drought. 2. The rice generation has a higher base number for worms and insect pests, and farmers are not able to prevent them and prevent unbalance. As a result, rice, combined with high temperature and rain in June-August, is conducive to the migration of two pests, and the field temperature is large. It is beneficial to the occurrence and development of rice sheath blight and rice blast. Third, the control strategy in the late In order to ensure the prevention and control of pests in the middle and later stages of our district and ensure food security and increase production and income, the following major strategies are adopted: 1. Each township street agricultural service center must strengthen field investigations, grasp the occurrence of pests and diseases, convene prevention and control on-site meetings in time, release information, make technical guidance for prevention and control, and minimize pests and diseases. 2, according to the occurrence of different pests and diseases, take the re-treatment, pick governance and general rule, the system of prevention and control combined with the group prevention and treatment combined method to prevent and control, improve the control effect. 3, master key period of prevention and control, the area below 350 meters above sea level, from late June to early July, 350-500 meters below sea level, in mid-July, 500 meters above sea level, in mid-late July. 4ã€Prescribe the right medicine, actively organize the use of high-efficiency, low-toxic, low-residue pesticides, promote green prevention and control, and ensure the quality of agricultural products and the safety of people and livestock. Fourth, recommended drug 1, rice locusts. 1 Insecticide singles: The effective amount of mu for the use of: 36 grams; 2 triazophos: Mu with the active ingredient amount: 30-40 grams; 3 chlorpyrifos: mu active ingredient amount: 40-60 grams, any one The species were stopped for use a week before harvest. 2. Rice leaf roller. 1 Abamectin: The effective amount of mu is 0.72-0.9 g, do not apply under strong sunlight, and stop using it for 20 days before harvesting; 2 Chlorpyrifos: the effective amount of mu is 48 g; 3 Chlorantranil Formamide: The amount of active ingredient in mu is: 2 grams; 4 Thiamethoxam, chlorantraniliprole: The effective amount of mu is: 3.2 grams. Except avermectin, other agents were stopped for one week before harvest, and they were all optional. 3, rice plant fly. 1 Imidacloprid: The effective amount of mu for the use of: 2-3 grams,; 2 Thiamethoxam: mu with the amount of the effective ingredient: 0.8-1.2 grams; 3 buprofezin: mu active ingredient amount: 7.5-12.5 grams; 4 Chlorpyrifos: The effective amount of mu for the use of: 32-40 grams, any one, were stopped before the harvest a week. 4, rice blast disease. 1 tricyclazole: mu effective amount: 16.5-22.5 grams, 25 days before harvest to stop use; 2 Bacillus subtilis: mu effective amount: 10 grams, in the rice blast disease at the initial stage of application. 5, sheath blight. Jinggangmycin: The amount of active ingredient in mu is: 5 grams, applied in the initial stage of rice sheath blight. Note: For the above medicaments, water is 40-60 kg and spray evenly. 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