Comprehensive Prevention and Control Technology of Rice Blast

I. Technology Introduction Integrated pest control technology refers to the unfavorable conditions of remediation of pesticide residues, resistance, and re-entry caused by long-term application of pesticides to rice borers. It minimizes human and environmental pollution, and conscientiously implements “prevention-oriented, comprehensive prevention and control”. The plant protection policy, adhere to the development of pest forecast, pest diagnosis, prescribing medicine to guide prevention and control, play the role of farmland ecological regulation. In response to the large-scale adjustment of the agricultural production structure in our province and the development of high-quality, high-yield, and high-efficiency agriculture, a combination of ecological control, biological control, physical control, and prevention and control of low-toxicity, low-residue, and low-residue chemical pesticides has been combined to form a coordinated control. The system of rice locusts not only achieves the purpose of controlling the outbreak of locusts, but also enables the harmful substances in products and the environment to meet the national standards, and produces pollution-free and pollution-free high-quality products. Second, the operating procedures 1, reduce the effective insect field overwintering locust base. (1) Autumn and winter defense. In the autumn, serious consideration is given to the effective source of insects in the next spring. Marked by dry clusters and white panicles, cut the dead seedlings and white panicles from the base before the larvae fall sufficiently into the overwintering position; before the winter crops are sown, fine Soil preparation was performed on the piles except for the piles of rice, and during the early stage of winter crops, combined with cultivating and weeding, rice stubble fertilizer was collected. (2) Timely plowing of spring fields: weeding out the weeds in the fields and timely irrigating and irrigating the fields. Before the overwintering locust emergence peaks, the paddy fields are irrigated and irrigated, thus promptly eradicating the fields in the fields, grasses, rape sticks and pods. The mid-winter locusts can greatly reduce the number of locust occurrences in the year. 2, set up to kill the field, governance Oda pressure base. Although the area was small in the early stage of planting in the province, during early peaks of the first and third generations of cockroaches during late April and July, early rice planting, especially early rice field and late rice field planted early in the morning, the seedlings had grown green and lure. Integrated egg production can account for about 70% of total contemporary eggs. 3, timely field. Early rice on May 25th and 2nd night before August 25th for proper drying season; early enough for Miaotian early sun, not enough seedling standard paddy fields in the field at the end of the field; fertile fields re-sun, sun to people stepping on Footprints, feet not mud or field cracking is appropriate. The drying field can effectively reduce the oviposition amount of the codling moth and achieve the effect of reducing the cockroach damage rate. 4. Pay close attention to the prevention and control of ant locust in the earing stage of late-maturing cultivars. The second and fourth generations of ant pods often coincide with early and late varieties of late-maturing varieties at the break and heading stage (easily invaded period), and the drugs are controlled according to the rice breeding period and the cross hatching period of locust eggs. For special antimony medicines, such as Shijingjing, Daozhiqing, Ruijinte, etc., to control the ants that invade young panicles, the rate of white panicles can be reduced. 5, cultivation and governance. The reasonable layout of rice cultivation, and adjust the sowing date, and promote the application of anti-aphid cultivars can relatively reduce the damage of aphids. 6. Grab the crop quickly. Early rice is harvested promptly after harvesting, and fast ploughing and harvesting are conducted. As soon as possible, some rain-dried arid zones are pumped to the fields as early as possible. This can effectively eliminate most of the larvae and cockroaches that exist in cockroaches, and greatly reduce the occurrence of third-generation insect sources. 7, scientific medication. Efficient and long-term counterpart pesticides were selected, and farmers were instructed to fight drugs at the predicted time. The main selection was to use ciprofloxacin, rice bran, triazophos, and fipronil for aphid control. 8, protect natural enemies. In the rice fields, there are intentions to establish "safety pools" and "security forests" for natural enemies to create sites conducive to habitat predation by natural enemies so that natural enemies can avoid pesticide poisoning, thereby increasing the natural enemies' breeding coefficient and protecting the large numbers of natural enemies; At the same time, the use of pesticides with low natural killing power will reduce the number of natural enemies and increase the rate of natural enemies. 9, extensive application of modern science and technology. Selecting gene-resistant varieties and promoting the application of mathematical statistics information systems and other advanced technologies and skills will bring about great effectiveness in the comprehensive prevention and control of aphids.

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