They take a while to be effective tho! They work best as a preventative not for an outbreak! Predator mites work great and in an earthbox under the cover they can grow to a healthy population and i have put used soil into a tote for months unwatered and unattended and can go back and amend the soil later to use and i will find a new population of them has sprung up!
Rove beetles work great but they themselves fly so u wind up with them flying all over the house or they fly around the tent and land in trichomes and get stuck so u find dead beetles in your flowers at harvest!