agrili, while Spathius galinae was approved for release in 2015. Excluding Spathius galinae, which has only recently been released, the other three species have been documented parasitizing emerald ash borer larvae one year after release, indicating that they survived the winter, but establishment varied among species and locations. Tetrastichus planipennisi and Oobius agrili established and have had increasing populations in Michigan since 2008; Spathius agrili has had lower establishment success in North America, which could be caused by a lack of available emerald ash borer larvae at the time of adult emergence in spring, limited cold tolerance, and better suitability to regions of North America below the 40th parallel. The USDA is also assessing the application of Beauveria bassiana, an insect fungal pathogen, for controlling emerald ash borer in conjunction with parasitoid wasps. See also Forest integrated pest management Forest pathology Chestnut blight Dutch elm disease Invasive species References External links Interview with researcher Canadian Food Inspection Agency USDA Forest Service Northern Research Station link to research on EAB Species Profile- Emerald Ash Borer (Agrilus planipennis), National Invasive Species Information Center, United States National Agricultural Library. Lists general information and resources for Emerald Ash Borer. Buprestidae Beetles of Asia Insects of Russia Woodboring beetles Insect pests of temperate forests Forestry in the United States Beetles described in 1888 Taxa named by Léon Fairmaire