Yes, and it in the soil. Consider this: mix 1/2 cup of honey with 1 gallon of sour milk, add 1/2 cup of baking powder (not soda) to the mix and 5 to 5 1/2 gallons of water. Put this mixture in a watering can and dribbling it over the affected areas of your lawn. It should only take one application of the mixture. Results in 2 to 2 1/2 weeks, if you still have a problem, apply a second time (a second application is extremely rare!) -Birdy