Pirate Bugs eat thrips, mites, aphids and whitefly pupae. Pollen is also used as a food source. Use 100-2000 per acre. Over a 3-4 week period, a female can lay 80-100 eggs. Orius doesn't breed well during short light periods, so additional lighting may be needed to provide a total of 15+ hours of light daily. Highly recommended for those difficult infestations. Shipping included for In-Store Pickups of the 100 qty only. Preferred shipping UPS Next Day Air. Call for Best Rates.