The first is the comprehensive use of agronomic control measures. Promote rice fitness cultivation, combined with agro-ecological measures such as field management, fertilizer and water management, and create a rice field ecological environment that is not conducive to the occurrence of pests and diseases. After transplanting late rice, the rice and ducks can be co-educated and the grass can be prevented, pests can be prevented and treated.
The second is to promote the application of green prevention and control technology. Priority is given to the use of biological control, sex attractant trapping and light trapping techniques to protect and utilize natural enemies and minimize the use of chemical pesticides. The rice stem borers and rice leaf roller can be sprayed with the Bt preparation during the hatching period of the eggs; during the adult stage of the rice planthoppers and aphids, a frequency-vibration type insecticidal lamp is placed concentrically and each lamp can control 30-50 acres of rice fields. In the second phase of rice stem borers and rice leaf roller cocoon, insect sex pheromone is used to trap and kill adult worms, and 1 lure per mu is used to set the density of field larvae. The rice blast can be selected from Bacillus subtilis, Kasugamycin, and wells. The wax buds are used for prevention. When the leaves are in the field with acute lesions, the incidence center or the diseased leaf rate reaches 10%, the spraying is uniformly performed. The panicle blast is sprayed at the beginning of the break to prevent it completely; the rice smut can be used well. The wax buds are prevented from being sprayed 7-10 days before the booting of the booting bud. In case of rainy weather, the second spraying is applied during the cracking period; sheath blight is selected from Jinggangmycin, wells and wax buds are used for prevention. Spray at a rate of 20%-30%.
The third is the rational use of chemical pesticides. According to the results of monitoring surveys and pest control indicators, high-efficiency, low-toxicity, environmentally-friendly pesticides were selected and compliance was achieved. In the prevention and control of pests, the period of confinement should be relaxed and the period of heading should be protected. Each pesticide species is used no more than twice a season to avoid drug resistance. When the disease is prevented, sufficient water quantity and uniform spray are to be achieved; after controlling the rice planthoppers, the rice plants should be sprayed at the base of the rice plant after the line is sealed, and the shallow water layer should be kept in the field for 2-3 days after application to ensure the control effect. During the growth period of mid-late rice, the temperature is high and the sunshine is sufficient. Field operations should be conducted in the early morning and early evening to avoid spraying at high temperatures at noon, and to protect against pesticide production poisoning accidents. Elimination of the use of highly virulent pesticides and pyrethroid pesticides prohibited by the State in paddy fields.
The fourth is to implement emergency prevention and anti-government rules. According to the characteristics of rice pests and diseases, for example, the “two migrations†pests should be caught in the areas where severe pests should catch the peaks of young instars (larvae) and rice blasts should seize the heading stage, rice planthoppers and their spread. Virus disease areas should seize the rice seedling stage and the peak period of adult migration to the rice field, and adopt a combination of specialized prevention and group prevention and community management measures to centralize the unified defense and joint prevention and control campaigns, and strive to improve the control effect.
Fifth, we must do a good job in the prevention and control of southern rice black streaked dwarf disease. With the common mid-season rice entering the panicle stage and late rice entering the jointing stage, the southern black stripe dwarf disease of rice in the middle and lower reaches of the middle and lower reaches of the Yangtze River and the single-dual-season hybrid rice region will continue to show symptoms, and some severe onset fields have emerged. All localities must strengthen the prevention and control of southern black streaked dwarf disease in the early stage of late rice, and find diseased plants in the field. They must promptly remove or step in the mud to reduce the local source of poisons. The diseased field where the diseased plague rate exceeds 50% should be changed in time. Species. Poisonous whitebacked migratory locusts migrated to the early days of paddy fields and should use the principle of early treatment and quick-effect potentiation, and selected buprofezin, etofenprox, pymetrozine and other fast-acting and sustained-active agents for chemical control. Can be taken to spray foliar fertilizer and virus passivation agents and other measures to improve the plant's resistance and reduce losses.
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