Spider Mite Predators not only feed on Spider Mites and their eggs, they also breed twice as fast! Each Spider Mite Predator sucks the juice out of about 5 Spider Mites a day, or 20 of their eggs. Used as directed, predators should noticeably begin to gain control within 4 weeks, and then continue until the Spider Mites are nearly or completely wiped out. Predators disappear when the Spider Mites are gone. This Triple Threat mix of all 3 species covers a wider range of growing conditions. Temp Range: 55 - 105+ F. Humidity Range: 45 - 90%. 100 per minimum order. 2 day shipping included($16.75) Numerous other beneficial insects available-Call or email for more info or for larger orders.