![Adult Asian citrus psyllid, Diaphorina citri, (2-3 millimeters long) on a young citrus leaf. Photo courtesy of USDA by David Hall.](https://i0.wp.com/agnetwest.com/wp-content/uploads/2015/07/Adult-Asian-citrus-psyllid-150x95.jpg?resize=150%2C95)
Courtesy: USDA
A second parasitic wasp has been released to bolster the biological control of the Asian citrus psyllid (ACP).
Growers heard about a 2-year trial that looked at tamarixia wasps for ACP biological control earlier this month at a citrus growers’ seminar series. Cooperative Extension Specialist Mark Hoddle worked on that project and showed growers how a second wasp has been released that should complement tamarixia.