5,000 Live Adult Predatory Mites - N. Californicus a Predatory Mite Specie for Spider Mite Control - Ships Next Business Day!l Package includes approx 5,000 N. californicus predatory mites for Spider Mite Control Harmless to vegetation and great at controlling two spotted spider mites, broad mites. Easy to release. N.californicus survive on pollen in the absence of prey. For use in most growing climates. Release rates 5 -10 mites per sq. ft. Can tolerate temperatures up to 95 degrees.