The occurrence of major pests and diseases of crops this year will be mainly focused on the previous year.

According to the National Crop Pest Monitoring Network, due to multiple factors such as arid climate and large number of wintering bases for pests and diseases, the occurrence of major pests and diseases of crops this year will be significantly focused on the previous year. The area of ​​various pests and diseases is expected to exceed 6 billion mu, and the prevention and control tasks and The difficulty is more than normal.

According to the summary analysis, recent pests such as wheat spiders and aphids have increased from north to south in various wheat areas. As of February 15th, wheat spiders, mites and sheath blight have accumulated 47.8 million mu in the Huanghuai, Jianghuai and North China wheat areas, and the hazard period is about 10 days earlier. Among them, the area of wheat spiders was 17 million mu, which was 1.4 times higher than that of the same period of last year. The provinces of Henan, Shandong, Shanxi, Shaanxi, Hebei, Anhui, Jiangsu and other provinces occurred heavily ; the area of ​​locusts was 12.9 million mu, 2.4 times more than the same period of last year. Henan Shanxi, Shandong, Shaanxi, and Anhui provinces are heavier. The amount of 100 strains in the salt lake area of ​​Yuncheng, Shanxi has reached 6.5 times that of the same period of the previous year. The amount of sputum in Shandong Weihai has reached 100 times that of the same period of the year; the area of sheath blight is 1790. Tens of mu, Henan, Shandong, Hebei, Jiangsu, Anhui are generally seen, wheat stripe rust in the southwestern and northwestern wheat areas in 93 counties have a total incidence of 260,000 acres, the degree of occurrence is close to the same period last year.

According to the forecast of the National Climate Center, the temperature in most parts of China this spring is generally high, and the precipitation is less, which is conducive to the occurrence of pests such as wheat spiders and aphids. It is expected that as the temperature rises, the area of ​​various pests and diseases will rapidly expand, and the prevention and control tasks and The difficulty is more than normal. Among them, the wheat stripe rust is in the southwest region, the northwest and the Huanghuaihai wheat area is 40 million mu, and the scab is in the south of the Yangtze, Huaijiang , Jianghan and Huanghuai areas. The area is 65 million mu. The powdery mildew is in the North China, Huanghuai and Yangtze River basins. There are 120 million mu of wheat in the northwestern wheat area, and there are 130 million mu of rice sheath blight in the wheat areas of North China, Huanghuai and Jianghuai. The aphids in the wheat earing stage are heavily polluted in the North China and Huanghuai wheat areas, with an area of ​​240 million mu. Rice paddy and rice leaf roller are more important in most rice areas in the south, with an area of ​​420 million and 330 million mu respectively. Rice blast is popular in some areas of southwest, northeast and south of the Yangtze River, with an area of ​​8,000. Tens of acres; the southern rice black-streaked dwarf disease spread by rice planthoppers occurs in the southern China and Jiangnan rice areas, with an area of ​​more than 30 million mu. Other crop pests and diseases occur locally heavy, Sclerotinia place emphasis on the Yangtze River, the occurrence area of 5,000 acres; potato late blight place emphasis in the southwest, northwest, northeast of the main producing areas, with an area of nearly 4,000 acres of occurrence; in the northeast corn borer Most of them are heavily weighted, with an area of ​​340 million mu; the area of ​​aphids in the agricultural area is 90 million mu.

In response to the occurrence and harm of crop pests and diseases in 2011, the Ministry of Agriculture has recently established a joint prevention and control team and expert group of 14 key provincial plant protection departments, requiring 900 regional monitoring and control stations for crop pests and diseases to strengthen monitoring and prevention. guide. The agricultural departments of various localities have also formulated prevention and control programs early, strengthened pest and disease monitoring and prevention and control preparations, and strived for “early warning, early preparation, and early prevention and control”. At the same time, in order to implement the spirit of the State Council executive meeting on February 9, the relevant departments actively raised funds for prevention and control, in 800 counties in the main food producing areas of wheat, rice and corn, and in the source areas of migratory and epidemic major pests. In 200 counties, we will fully implement professional and unified defense and strive to minimize the damage caused by major pests and diseases.