The current main producing areas of summer maize are in the jointing stage, and various corn diseases and insects will gradually enter the peak period. According to a recent survey of corn disease and insect pests monitoring sites, corn borer is more common, including high levels of insects in parts of northern Huaibei, corn brown spot, Curvularia leaf spot disease has been part of the disease. Recently, experts from the province's plant protection technology consulted and analyzed. It is expected that the main diseases and insect pests in the middle and late summer maize crops in our province will be heavily ecological, with an area of ​​28 million mu. In order to earnestly do a good job in preventing and controlling corn pests and diseases, ensure that the goal of this year's corn revitalization plan is achieved, and the provincial Agriculture Commission requires that:
First, attach great importance to making prevention and control arrangements as soon as possible. Corn borer, aphids, Curvularia spp., and other diseases and pests are major pests and diseases that endanger the middle and late stage production of corn in our province. They have the characteristics of great harm, and difficult to control in the later period. Doing a good job of corn pest control is an important part of seizing this year's corn harvest in our province. The agricultural departments at all levels should pay great attention to the prevention and control of corn in the middle and late stages of diseases and insect pests as an important measure to capture the harvest of autumn crops, as soon as possible to make arrangements for prevention and control work, meticulous arrangements, pay close attention to implementation, clear responsibilities, and do its best to prevent and control work.
Second, strengthen monitoring and investigation and timely release warning information. There are many kinds of pests in the middle and later stages of corn, and the laws are complex, and there are big differences in different types of fields. All localities must enrich the power of front-line surveying personnel, increase the scope of census and census work, fully grasp the development of pests and diseases in the field, and timely discuss and analyze trends and publish warning information on disease and insect pests. We must strengthen short-term forecasting of major pests such as corn borer. It is necessary to actively produce and publish television forecast of disease and insects and improve the effect of forecast and early warning.
Third, grasp the key points and conduct scientific prevention and control. All parts of the country must focus on corn borer, corn leaf spot and Curvularia leaf spot disease. At the same time, attention should be paid to the control of pests such as corn borer, leaf spot, and southern rust. First, at the end of the corn leaf stage (big bell season), there are 30 eggs accumulated in 100 corn pods, or when the flower leaf strain rate is 10%, and 16,000 IU/mg of Bt WP can be used per mu 300 g (by medicine, water, The proportion of dry fine sand 0.4:1:10 is formulated into granules.) The core component of the musciphos granules is 9-12 grams, and the second generation of corn mash is controlled. When the spike rate of corn locust is 10% or the amount of silk flowerworm is 50, the effective composition of fenvalerate is 20 grams, and the ear of corn is sprinkled with water. The second is in the early stage of maize brown spot, leaf spot, and Curvularia spp. In the field, 10 g of effective triadimefon per mu, 6.25 g of diniconazole active ingredient, and 45 g of active ingredient of daisammon are sprayed on water. Depending on the development of the disease, it can spray 2-3 times, about 7 days apart.
Fourth, strengthen publicity and do a good job of technical guidance services. We must make full use of broadcasting, television, newspapers, mobile phone short messages, and clear-cut papers to conduct comprehensive propaganda on the occurrence and prevention and control of corn pests and diseases, and improve the availability of prevention and control technologies. During the critical period of prevention and control, the organization of agricultural technicians went deep into the field and conducted technical guidance services to improve the pertinence and effectiveness of the prevention and control work. At the same time, it is necessary to step up efforts to promote professional and unified defense and control, increase the coverage of prevention and control, and effectively solve the problem of preventing and controlling pests in rural migrant workers. It is necessary to increase supervision of the pesticide market and ensure farmers to use pesticides that are safe to the road, and strive to improve the control effect.
First, attach great importance to making prevention and control arrangements as soon as possible. Corn borer, aphids, Curvularia spp., and other diseases and pests are major pests and diseases that endanger the middle and late stage production of corn in our province. They have the characteristics of great harm, and difficult to control in the later period. Doing a good job of corn pest control is an important part of seizing this year's corn harvest in our province. The agricultural departments at all levels should pay great attention to the prevention and control of corn in the middle and late stages of diseases and insect pests as an important measure to capture the harvest of autumn crops, as soon as possible to make arrangements for prevention and control work, meticulous arrangements, pay close attention to implementation, clear responsibilities, and do its best to prevent and control work.
Second, strengthen monitoring and investigation and timely release warning information. There are many kinds of pests in the middle and later stages of corn, and the laws are complex, and there are big differences in different types of fields. All localities must enrich the power of front-line surveying personnel, increase the scope of census and census work, fully grasp the development of pests and diseases in the field, and timely discuss and analyze trends and publish warning information on disease and insect pests. We must strengthen short-term forecasting of major pests such as corn borer. It is necessary to actively produce and publish television forecast of disease and insects and improve the effect of forecast and early warning.
Third, grasp the key points and conduct scientific prevention and control. All parts of the country must focus on corn borer, corn leaf spot and Curvularia leaf spot disease. At the same time, attention should be paid to the control of pests such as corn borer, leaf spot, and southern rust. First, at the end of the corn leaf stage (big bell season), there are 30 eggs accumulated in 100 corn pods, or when the flower leaf strain rate is 10%, and 16,000 IU/mg of Bt WP can be used per mu 300 g (by medicine, water, The proportion of dry fine sand 0.4:1:10 is formulated into granules.) The core component of the musciphos granules is 9-12 grams, and the second generation of corn mash is controlled. When the spike rate of corn locust is 10% or the amount of silk flowerworm is 50, the effective composition of fenvalerate is 20 grams, and the ear of corn is sprinkled with water. The second is in the early stage of maize brown spot, leaf spot, and Curvularia spp. In the field, 10 g of effective triadimefon per mu, 6.25 g of diniconazole active ingredient, and 45 g of active ingredient of daisammon are sprayed on water. Depending on the development of the disease, it can spray 2-3 times, about 7 days apart.
Fourth, strengthen publicity and do a good job of technical guidance services. We must make full use of broadcasting, television, newspapers, mobile phone short messages, and clear-cut papers to conduct comprehensive propaganda on the occurrence and prevention and control of corn pests and diseases, and improve the availability of prevention and control technologies. During the critical period of prevention and control, the organization of agricultural technicians went deep into the field and conducted technical guidance services to improve the pertinence and effectiveness of the prevention and control work. At the same time, it is necessary to step up efforts to promote professional and unified defense and control, increase the coverage of prevention and control, and effectively solve the problem of preventing and controlling pests in rural migrant workers. It is necessary to increase supervision of the pesticide market and ensure farmers to use pesticides that are safe to the road, and strive to improve the control effect.
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