When the crops have been infected, what measures should be taken to control them? The following is an example of rice.
The main pests and diseases of rice include rice planthopper, rice leaf roller, rice stem borer, rice sheath blight, rice blast, rice smut, rice black-streak dwarf disease, and southern rice black-streak dwarf disease.
First of all, we should do a good job in the prevention and control of rice pests and diseases. Adhere to the general strategy of rice field pest management in the prevention of seedling stage, relaxation of tillering stage and protection of ear-forming stage, and vigorously promote chemical control of cultivation and control, biological control, physical control, ecological control and high-efficiency, low-toxicity and low-residue Harm and other technologies. The main technologies are cultivation and ecological control technology, overall control technology and scientific drug technology, standard drug use, standardized drug use; pest control technology such as rice stem borer, rice planthopper, and rice leaf roller.
In general, specific prevention and control is divided into the following three stages:
1 Rice seeding to seedling stage: Pay attention to seed treatment, focus on prevention of seed-borne diseases (mycosis, rice blast, dry-point nematode disease, etc.); timely control of Laodelphax striatellus, white-backed planthopper, and prevention of insect-borne diseases (viral disease) ); grasp the control of locusts, locusts, etc.
2 Rice break period: focus on the control of rice planthoppers, rice leaf roller, aphids, ear mites, rice smut, sheath blight and other pests and diseases. According to the characteristics of rice varieties, the main types of pests and diseases, the degree of occurrence, and the occurrence period, the main target is determined according to local conditions, and the medicines are rationally mixed, and the "main" and "secondary" are treated to achieve the effect of "one spray and more defense".
3 Rice panicle stage: According to the actual occurrence of pests and diseases, the rice planthopper is the main target, and other diseases and insect pests are treated.
During the control process, different types of pesticides should be alternately rotated to delay the development of drug resistance. When applying the medicine, the field should be kept as shallow as possible, and the field should be water-free, and the water consumption should be appropriately increased to ensure the control effect.
It is far from enough for farmers to take preventive measures during the growth and development of crops. It is also necessary for relevant departments to improve and improve the monitoring and early warning system for major pests and diseases of crops. This is an important basis for agricultural disaster prevention and reduction. In Zhejiang, the frequency of fulminant, migratory and epidemic pests and diseases has increased, and the risk of introduction of foreign pests has increased, posing a major threat to agricultural production in Henan. In order to enhance the ability to resist agricultural biological disasters, reduce the risk of introduction of exotic pests and dangerous quarantine pests and diseases, and ensure the safety of agricultural production, during the “Eleventh Five-Year Plan†period, with the support of the Ministry of Agriculture and the provincial government, Henan Province invested and built 11 national-level regional stations, 44 provincial-level regional stations and major pest and disease surveillance sites. The use of these surveying and reporting sites has played an extremely important role in improving the monitoring and early warning capability and prevention and control level of major crop pests and diseases in Henan, ensuring the safety of agricultural production, the quality and safety of agricultural products and the safety of agricultural ecological environment, and achieved remarkable social and economic benefits. And ecological benefits.
Through project implementation, it is equipped with advanced equipment such as computer, digital camera, multimedia, pest indicator light, pest survey statistic, insect killer, spore trap, agricultural meteorological instrument (including pest and disease survey statistic mainly used in agriculture, The work of pest forecasting, forecasting, early warning, and research in forestry, quarantine and other fields has played a very good preventive role in the management of pests and diseases of crops in Henan Province. It has changed the simple means of measuring and reporting in the past, the original instrument of measuring reports, and the disorder of data collection. The situation has accelerated the compilation of data and the establishment of a database of pests and diseases, improved the information and data collection of major pests and diseases, and basically formed a major pest monitoring and early warning network of “efficient operation and rapid responseâ€, which improved the Major pest and disease warning ability and disposal level.
Personal Care,Hair Conditioner,Body Wash Shower Gel,Moisturizing Shower Gel
Wuxi Keni Daily Cosmetics Co.,Ltd , https://www.kenidaily.com