If you don't want to buy a bottle of commercially prepared fruit and veggie wash, here's a recipe to make your own.
1 tablespoon of lemon juice
If you have a juicer, you can use it to juice the lemons. Be sure to strain the pulp out to avoid clogging your sprayer.
2 tablespoons of white vinegar
Add these to a spray bottle and use it to spray your fruits and veggies. Multiply the recipe if you have a lot to veggies to wash.
Both lemon and vinegar have natural disinfectant properties.