Pay close attention to the Prevention and Control of Diseases and pests in Middle and late Rice to ensure the Safety of Rice production

At present, the middle rice is in the heading and setting stage, and the late rice is in the tillering to jointing stage, which is the critical period for the occurrence, development and damage of diseases and insect pests. In order to effectively control major rice diseases and insect pests and strengthen prevention and control measures, on August 20, the National Agricultural Technology extension Service Center of the Ministry of Agriculture and the planting Management Department held a national on-the-spot meeting on the prevention and control of major rice diseases and insect pests in Nanchang, Jiangxi Province. observe the demonstration site of green prevention and control of late rice diseases and insect pests, discuss the progress of rice pest control, mobilize and the prevention and control work of middle and late rice pests in the Ministry. We will further implement the action of the Ministry of Agriculture to prevent diseases and control pests and win a bumper harvest of autumn grain to ensure the safety of rice production.

The meeting analyzed the characteristics of the current occurrence of major rice diseases and pests, first, a wide range of occurrence, second, the rapid growth of the insect population, and third, the rapid spread of diseases. Due to the influence of weather and other favorable factors in the middle and later stage of rice, rice blast, "two-migration" pests, borer and other diseases and insect pests are at high risk, and the control situation is severe. The meeting further made it clear that the rice prevention and control targets in the middle and later stages are as follows: the disposal rate of major diseases and insect pests is more than 90%, the application area of green prevention and control technology is 18%, the specialized prevention and control area is 27%, and the overall control effect is more than 85%. The loss rate of diseases and insect pests is controlled within 5%. The use of chemical pesticides decreased by 1-2 times in the whole season. The key areas and objects of prevention and control are as follows: in the middle and lower reaches of the Yangtze River, Jiangnan, Jianghuai single cropping rice and single and double cropping areas, focus on the control of rice planthopper, rice leaf roller, stem borer, sheath blight, rice false smut and rice blast; focus on the control of sheath blight and rice blast (branch blast, grain blast) in the southwest single season rice area. The control of rice planthopper, rice leaf borer, stem borer, sheath blight, rice blast and false smut in late rice areas in South China and rice blast (branch blast, grain blast) and sheath blight in single cropping rice areas in North China were emphasized.

The meeting asked agricultural plant protection departments at all levels to raise awareness, strengthen organization and leadership, regard the prevention and control of major diseases and pests in the middle and later stages as the top priority of the current work, and implement the responsibility of prevention and control at all levels. Second, it is necessary to vigorously promote scientific prevention and control, strengthen field investigation, timely grasp the dynamics of the occurrence of diseases and insect pests, identify key prevention and control objects and key areas, carry out classified guidance, and carry out scientific prevention and control in a timely manner. Priority should be given to microbial agrochemicals, natural enemy insects and insect pheromones, and long residual chemicals should be avoided at panicle stage to prevent rice agricultural residues from exceeding the standard. Third, it is necessary to promote the integration of green prevention and control and professional unified control, and vigorously promote the action of "zero growth in pesticide use by 2020". Fourth, extensive publicity and training should be carried out to improve the awareness and technical level of prevention and control of major diseases and insect pests among professional service organizations and farmers, so as to improve the effect of prevention and control.

The meeting stressed that middle and late rice is not only a major part of rice production, but also a critical period for the prevention and control of diseases and insect pests, and plant protection departments should always maintain a high degree of vigilance, and should not relax their vigilance because of the mild occurrence of individual diseases and pests in the early stage and good control results, but should act quickly and pay close attention to implementation to ensure the realization of the goal of pest prevention and control in middle and late rice.