the summer heat all types of lawn diseases such as leaf spot

This summer, the United States around the cold season turfgrass especially creeping shear shares the Yingshang (Agrostis stolonifera) and Kentucky bluegrass (Poa annua) management is facing a great challenge. If the high temperature continues, 2010 will be the hottest summer following the 1934 "Sandstorm" (Dust Bowl). This summer, not just the high temperature and high humidity. The dew point is higher than the normal 10%, this value reflects the same temperature high humidity.

In the summer of this year in June, the summer heat all types of lawn diseases such as leaf spot, dollar spot, Pythium disease, anthrax broke out throughout the country. Subsequently, summer patch disease. Outbreaks of these diseases 3-4 weeks earlier than in previous years. These symptoms are very typical, in other words, they are the textbook description of exactly the same.

As the summer progresses, climatic conditions led to the lawn, especially creeping Agrostis Ying and bluegrass lawn overall quality continued to decline. In most cases, these Lawn degradation is not caused by the bacteria, but the high temperature and humid climatic conditions cause the lawn, gradually lose vigor, trampling and wear accelerate the degradation process. Further, lawn grass roots black soil, and too much of the organic matter contained in normal circumstances is not necessarily cause degradation of the lawn, lawn also affect the degradation in such a climate. The golf courses are in use all possible ways to reduce the degradation of the lawn, such as reducing the frequency of mowing, mowing height, switch to solid roller rolling lawn, and very carefully watering the lawn. The number of golf courses throughout the summer did not open the green irrigation systems, but completely artificial watering.

An interesting phenomenon is that the eastern United States to the Midwest began to reports of bacterial wilt. Bacterial wilt is common in Poa annua greens in the face of adversity. In Ohio, Cleveland in the north to the south of Cincinnati Poa annua greens bacterial wilt. But now the director of golf courses are particularly tense, recently reported that some of the new varieties of creeping Agrostis Ying established 4-5 years greens. In particular, the Director of headache, there is no effective way to control the disease. There is no doubt that we will see in the next few months more coverage of the disease.