Hi! I have a few plants I'm trying to decide if and how to bring in for the fall. I live in Vancouver, zone 8. All are in containers. * Lemon Scented Goldcrest Cypress Tree (Cupressus macrocarpa "Gold Crest") (would really like to know if this could possibly survive outside...as it has gotten rather big) * small pot of sedums * basil * Aeonium Schwarzkopf * Mosquito geranium with Rosemary I have been told the most effective method for avoiding pest infestation is to put the pots in a large garbage bag and spray them with raid and leave for 20 minutes. Is this generally recognized? Seems severe. Thanks!