Everyone who has a garden (of cannabis or otherwise) has dealt with pests. Maybe they didn't sink the ship, but they probably caused some strife. These little troublemakers have a proclivity for messing up crops and spreading like crazy if you aren't careful—it doesn't matter if you grow in a greenhouse, outdoors, or inside, they will find you.
There are plenty of options out there for pest control. Many are not all that safe. Some are safe, but not all that effective (I'm looking at you oregano oil, white vinegar, and distilled water!). There is a surefire way to tackle the problem if you understand biology: enter beneficial insects. These are simply bugs that eat other bugs. We call them beneficial because they eat the bugs we don't like and leave our crops alone. But in truth, all these insects are doing is what is simply in their nature; and by knowing their nature, we can utilize them with great success.
Beneficial insects are the cheapest, safest, and in many ways the most effective method of pest control and prevention—and they are organic. Leave your pest problem behind and give beneficial insects a try!