What else can be done?
Empty and wash out garbage cans regularly. Fit garbage cans with a tight lid.
If there will be a lot of people present during the day, empty the cans or dumpsters in the morning.
When the garbage will have sweetmeat, empty the garbage several times a day.
Clean the drink dispensing machines regularly.
Screen-in food stations where possible.
Locate trashcan away from the food dispensing windows and eating areas.
Clear away any scraps and dirty dishes right away.
Serve sweet drinks in containers with lids and straws.
If there are fruit trees nearby, clean up any fallen fruit.
Keep pet food inside the house.