How do you educate customers about pest prevention without giving away too much?

I'm not in the pest business but my business is similar because there is an element of they can do it themselves. If I was in your shoes, I would give them whatever information they are seeking but if they don't want to deal with it, that's where you come in. My impression of the pest industry is a lot of it comes down to being consistent with treatment which a lot of people probably wouldn't do for themselves (this is where a monthly or quarterly membership would come in).