The range uses naturally occuring different nematode species, to control some of the most common fruit and vegetable pests. Especially formulated for the home gardener, it has been specifically research to be safe for children, pets, wildlife and bees. Easy to apply with a watering can or hose end sprayer and can be used on organic crops. Each pack contains living organisms (nematodes) and must be refrigerated upon receipt. All will contain how to use simple step applications.