According to the recent survey of insect source bases at various monitoring sites, combined with comprehensive analysis of meteorological and historical data, it is expected that the main pests and diseases of early rice in our province will be more serious in 2017, the rice stem borer in the southeast coastal rice region, and the rice planthopper in the local rice region. And the panicles of some susceptible varieties have the possibility of recurrence. In winter and spring, the temperature in our province is significantly higher, the precipitation is less, the sunshine is normal, and the climatic conditions are very beneficial to the wintering of pests and diseases. According to the recent investigation of pests and diseases in winters at various monitoring sites, the average number of insects per mu in winter after the winter is 2,739, an increase of 126% compared with last year, and the average mortality rate is 7%. The main forecast basis: The total number of pest sources in the field is higher than last year. Among them, Glory County investigated 26,222 cases of acreage, an increase of 1,161% compared with last year; Changle City investigated 7,668 pieces of insects, an increase of 88% over last year. There were 95 insects in the winter after the winter, and 445 heads of insects were investigated in Tong'an District, an increase of 21% over the previous year. The varieties cultivated in large areas have different degrees of bacteria. The average rate of rice blast fungus is 1.0%, which is equivalent to last year. The average amount of Rhizoctonia solani in each type of field is 73,000 per acre, an increase of 62% over last year. In the southern rice area of ​​southern Anhui, the source of the insects of the rice planthopper was found. In Tong'an District, the average acre of 5.3 heads of white-backed locusts was investigated; The winter insect source of the rice leaf roller has not been found. Climatic conditions are beneficial to the occurrence of pests and diseases According to the forecast of the provincial climate center, most of the counties and cities in our province have high temperature and less precipitation in spring, which is very beneficial to the survival of wintering insects. Strong convective weather began to be active in spring, and precipitation intensity increased during the rainy season. This climatic condition is also conducive to the occurrence of rice blast and sheath blight and the migration of rice planthopper and rice leaf roller. There are various rice cultivation modes in our province, and the growth period is different. There are many bridges and fields, which provide favorable habitats for pests such as rice aphids, rice leaf roller, rice planthoppers and other pests. The area planted with early rice has been decreasing year by year. The main varieties of the land are mostly high-quality rice series, and the variety resistance has decreased, which has laid a foundation for the epidemic. Different sources of insects are more complicated According to the information of the National Agricultural Technology Center, the number of relocated insects in the “two-shift†pests in the autumn of 2016 was less than 46%. In the winter of 2016, the temperature in most of the southern China and Jiangnan rice areas is high, which is generally beneficial to the wintering of the “two-shift†pests; In the spring of 2017, the precipitation in Leizhou Peninsula, Hainan, western Guangxi and southwestern China was relatively high, and the temperature was slightly lower, which was conducive to the occurrence of pests in the “two-shift†pests; other early rice planting areas were hot and the precipitation was normal or less. There was no obvious adverse impact on the migration of the "two-shift" pests. In view of the above analysis, it is expected that the main pests and diseases of early rice this year will still be biased. Therefore, all localities should strengthen the monitoring of pests and diseases, accurately grasp the dynamics of pests and diseases, timely release information on pests and diseases, and effectively control the occurrence of pests and diseases. This article URL: Preliminary analysis of the main pests and diseases in early rice in 2017, namely prevention and treatment methods Small Air Hose Reel,Portable Air Hose Reel,Wall Mount Air Hose Reel,Commercial Air Hose Reel NINGBO QIKAI ENVIRONMENTAL TECHNOLOGY CO.,LTD , https://www.hosereelqikai.com