If you really want a biological answer, 'predator mites'. There are several species to choose from that are commercially produced for this purpose.
Generally, it's hard to keep a colony alive indoors because their homes get harvested every coupe of months, and it is important to maintain environmental conditions favorable to them, such as higher humidity. Commercial greenhouse growers just reorder periodically to counter these issues.
They will NOT stop an out of control infestation; it will take too long to build the population to save your crop. What they do well is maintain a presence and stop infestations from gaining a foothold.
Occasionally, you'll see a colony of predator mites 'farming' their prey- this would be an ideal situation, especially if you can manage to get them to do it on your mother plant!
One way to encourage this is to run a cool mist humidifier near where you want them to congregate, near where the prey is.
Do some research; it's a pain to get started but they can work if you're willing to make the effort.