Fog
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February 20, 2017
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This week fog is present in many areas of the country. Fog is water droplets suspended close to the earth’s surface. Fog often forms next to a local body of water, which is the major reason fog is different than a “cloud”.
From a predictive standpoint fog forms generally when the difference between the temperature and dew point is less than 4 degrees Fahrenheit. Given the high level of moisture present the turf is often wet for a considerable time enhancing the disease severity of foliar pathogens Under foggy conditions, red thread and Microdochium patch could become very damaging at this time.