Before I repot plants in soil that has been sitting in a bag in the garage or outdoors, I sterilize it and kill any hidden bugs by putting it in the oven at 200 degrees for about an hour. In a pinch, I'll wet soil throughly and microwave covered for a few minutes or until steaming. Cool before use, of course.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.