A natural enemy of many pest insects. Ravenous ladybugs arrive in your mailbox ready to eat many times their weight in aphids daily. They can “sleep” in your refrigerator and be released over a 30 day period. Instructions included. Shipped to you when the bugs swarm in California (this is also when it warms up in northern states), usually at the end of May unless otherwise requested. Be patient, the ladybug migration isn't always on schedule. Covers 2500 sq ft. Includes shipping.