Conditions Favoring the Disease
Yellow Patch is most prevalent from late fall to early spring when temperatures are less than 60°F (16°C). It occurs in areas that receive more than 10 hours of leaf wetness for several days in a row and on turf that has excessive thatch and high nitrogen levels. Poor mowing habits like a dull mower blade can increase the probability of Yellow Patch by leaving the turfgrass blades exposed to the disease.
Managing Yellow Patch
- Use a slow-release fertilizer to ensure moderate amounts of Nitrogen
- Reduce the leaf wetness period
- Avoid nighttime watering can as this can increase the leaf wetness period and lead to disease
- Allow for better air movement in order to help dry the lawn when moist
- Remove excess thatch through regular aeration will help alleviate compaction and improve drainage
- Ensure that when mowing, the lawn is mowed at a high level when dry
- Allowing the grass blades time to heal in the morning
- Avoid early-evening mowing as this will increase the chance of Yellow Patch as well as a dull mower blade
What Weed Man Can Do
Your locally owned and operated Weed Man dealer is here to help. Weed Man’s turf specialists can recognize Yellow Patch disease and make recommendations to help your lawn. Weed Man’s specially blended, slow-release fertilizer applied at the right time is the first step in preventing Yellow Patch. Weed Man’s fertilizer helps create healthy turf by slowly feeding the lawn as needed, encouraging deep rooting systems. Your local Weed Man dealer will also advise you on any other treatments or cultural practices that may be necessary to help your turf remain healthy and vigorous.