Wheat diseases occurred earlier in Shandong Province

Introduction: Recently, it was learned from plant protection station of Shandong Province that the occurrence trend of main wheat diseases and insect pests in 2005 in the province was more serious It is reported that this year, wheat stripe rust, a grain crop in Shandong Province, has a moderate epidemic trend on the whole Southwest Shandong Province will focus on the epidemic, with an area of about 8 million mu, significantly higher than last year, and earlier than all the year round On March 23, Chengwu County of Heze City first found the occurrence point and center of wheat stripe rust, which was 15 days earlier than that of 1990 and 26 days earlier than that of the previous two years The occurrence area is large and the time is early, which is rare for many years It has possessed the conditions of wheat stripe rust in our province Wheat Sheath Blight and powdery mildew occurred in a moderate degree, with a local occurrence area of 25 million mu and 18 million mu, respectively Insect pest: wheat aphid, which is predicted to occur in the whole province In the eastern part of China, the occurrence area is 45 million mu The occurrence area of wheat spiders is 15 million mu For other diseases and insect pests of wheat, if the flowering period encounters continuous rainy days, the occurrence of wheat scab will be moderate to light; the occurrence of wheat leaf blight will be moderate to light; the occurrence of root diseases such as wheat root rot and total erosion will be rising; the occurrence of wheat pulp middling to light, local to medium; the occurrence of wheat leaf wasps and underground pests will be moderate to light; the occurrence of the first generation of armyworm and wheat black spot leafminer will be light Life