I have been trying to plant new grass in 3 spots on my lawn. The areas are 5ft by 3 ft sections give or take. I bought new seed soil and raked in seed and the grass has grown quickly. The problem is that after a week or so, in the morning I am beginning to notice a clear sticky substance in areas of the grass. A few days later those areas brown and die. I believe I am watering enough and am not really sure what this is or how to stop it. Any suggestions?