I don't know man.... If you can definitely rule out that bugs are in the soil, then I'd say re-use it but if your pest prob is directly related to your soil, I'd say spread it in the yard and call it a loss, then get some fresh soil. Never ever buy more than a months supply of soil at a time, just a rule I go by.... I figure the longer it sits around, the more time bugs have to get into it.... Ultimately it's up to you......

CGI::::::