never used it.. cant say anything about it one way or another.. personally i use 100% neem oil and mix my own spray... i spray ever 2-3 days topside and underside of the leaves... and root feed it ever other watering until the infestation is gone.. usually takes about 2 weeks until all the mites are gone and all signs of them too... then i spray once a week, up through the 4th week of flowering, as a precaution...