According to the current field of bacterial sources, the disease resistance of the main varieties, historical occurrence and the comprehensive analysis of the weather forecast of the Henan Provincial Climate Center in the next month (March 20 to April 20), wheat scab is in Henan Province. The risk of prevalence in the south wheat area is obviously increased, and the other wheat areas are moderate to light. For example, from late April to early May (wheat heading and flowering period), there is continuous rain or fog, condensation and weather, and the field is humid. It will also be popular on a large scale. The main forecast is based on the following: (1) The amount of bacteria in the field: In recent years, Henan Province has generally promoted the return of straw to the field, which is conducive to the accumulation of pathogenic bacteria in the soil and abundant in the field. In the second half of February, Pingyi and other counties investigated the amount of corn root meal in the field, with an average of 0.45/m2, an increase of 0.4 percentage points over the previous year. The rate of root sputum was 2.7%, an increase of 1.1 percentage points over the previous year, indicating the amount of field bacteria. Larger. (2) The disease resistance of the main varieties is poor: At present, most of the wheat varieties mainly promoted in Henan Province are high-sensitivity wheat scab, and the wheat varieties of Yangmai series cultivated in Xinyang area have certain resistance to scab. However, according to the field performance of the previous year, when the humidity is appropriate, the disease rate is still high. (3) Weather conditions in the first half of April: According to the forecast of the Henan Provincial Meteorological Department, there will be five precipitation processes in Henan Province in the next month, which will occur on March 21-24, 30-31, and April 3-5. Days, around 9-12, around 20th. Among them, from March 21 to 24, cold weather will occur in parts of northern Henan and eastern Henan. From 30 to 31, there was light rain in Henan Province and small to moderate rain in the south of the Yellow River. From April 3 to 5, most of Henan Province had small to moderate rains, and there was moderate to heavy rain in southern Henan. From 9 to 12, there were light rains in most parts of Henan Province and small to moderate rains in the south of the Yellow River; around April 20 There is little to moderate rain in Henan Province and heavy rain in southern Henan. The rainfall process in mid-April coincided with the flowering and flowering period of southern Henan, which was conducive to the infection of Fusarium. It is hoped that all localities will pay close attention to the local short-term weather forecast and issue a warning report on the prevention of scab in advance. In particular, the southern Henan wheat area, which is a frequent occurrence area of ​​wheat scab and a recurrence area, should pay more attention to it, and pay close attention to the prevention and control of materials and adhere to the initiative. Attacking, seeing flowers and fighting drugs, "unwavering, professional and unified defense and the combination of group defense and group governance, do everything possible to do a good job in disease prevention, and strive to minimize the damage of scab. Source: Henan Agricultural and Rural Affairs Office This article URL: 2019 wheat scab is more serious than the weight of the above-mentioned wheat in Henan Province Fire Alarm By Kitchen,Fire Alarm Of Kitchen,Fire Smoke Alarm Of Kitchen,Fire Smoke Alarm Kitchen Guangdong Isafenest Co.,Ltd. , https://www.isfenest.com