Ultrasonic Pest Repeller Electronic Repellent Best Plug in - Get Rid of - Rodents, Squirrels, Mice, Rats, Insects - Roaches, Spiders, Fleas, Bed Bugs, Flies, Ants, Mosquitos, Fruit Fly, Pest Control! Specifically engineered to kill mites, aphids and powdery mildew in cannabis gardens. Fortified with a propriatary, nutrient-rich kelp extract to speed plant recovery and provide nutritional support. Can be used during vegitation and flowering--up to harvest day. Non-toxic, unscented, and biodegradable, Rigerously tested and trusted in Colorado and California commerical gardens.