Fruit Fly Species (image) Washington State University Share Print E-Mail Caption Invasive and naturalized fruit fly species on a peach tree inside the experiment. Credit Washington State University Usage Restrictions For use only with stories related to this press release. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.