How do you prevent machinery contamination of fungus and other weeds? I would really like to not spread any lawn problems from on account to another.

Dante

Good luck with that. You would have to clean off your mower after every yard. Keep your blades sharp prevents spread of disease. Most of our customers have chemical company's coming every 6-8 weeks. So you really shouldn't have to worry about that. But sharpen your blades often. Stefan