my blades and fungus

Im cutting a lawn which has a brown spot-I think its a fungus-should I mow around the area..does the stuffcling to the blades and spread? do the blades need to be sterilized?

 

here's what i do during disease cycles.....keep blades ground to a serious cutting edge and take a spray bottle with bleach and water and bleach between houses...end of the day wash deck....if you don't have the place to wash your deck car washes work graet and the wax is cool....

 

Don't use straight bleach as this stuff is caustic and may wrech havoc on your deck. Like the previous message. Bleach and Water will do the trick. Don't forget the tires too.