I spray the house perimeter with ortho termite and carpenter ant killer once a year. Twice if my wife gets "antsy" LOL. I also spray the window sills and entry ways.
I spray an all purpose 3-in-1 bug/disease killer on my shrubs each spring. Another time if I see any bug activity.
I don't spray in the house unless I see a bug (rarely).
Overall, I've seen very very few bugs.
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