Brown Patch appears, usually in fescue, as brown blotches scattered through the turf. It can also develop in warm season turf as it breaks dormancy. It is associated with a variety of conditions which may include any or all conditions such as: high nitrogen levels, high humidity and temperatures and improper watering techniques.
Dollar spot appears as small silver dollar size blotches, usually in warm season turf. The key word here is blotches. Very seldom do we see the distinct spots caused by dollar spot fungus that are common on golf greens. The presence of dollar spot can indicate compactionproblems, too much thatch, or is simply an indicator that available nutrient levels are dropping and should be replenished. This year this disease will be very active due to the weather being conducive to disease development.
- Rhizoctonia blight
Rhizoctonia blight on fescue, also called Brown Patch, is easily identified by the leafspot that appear on the blades of grass. This disease develops in May as temperatures begin to warm. Proper watering can reduce the incidence and severity of this disease. Once the disease develops fungicides must be used to keep the disese controlled.