Large brown patches, like circles, on my lawn

Q. I have large brown patches, like circles, on my lawn. They are very unsightly. What can I do about them? 

A. If the weather has been hot and humid it could be that you have brown patch fungus. It is controllable. The regime of watering only once a week and thoroughly will help by letting the lawn dry out in between. You can apply a lawn fungus control product every other week for six weeks.