Feltiella acarisuga is a predatory gall midge for control of spidermites. They are a very effective biological control for tomatoes, cucumbers, sweet peppers, other greenhouse crops and field crops where spidermite infestations are a problem. Adult Feltiella are excellent flyers and will easily spread throughout the entire crop. Feltiella are shipped in units of 250 pupae and come with a bottle of a natural stimulant spray called 'Ovistim' that encourages the feltiella to lay more eggs in the desired area.