Location: Beneficial Insects Introduction Research
Project Number: 1926-22000-023-00
Start Date: Oct 19, 2010
End Date: Oct 18, 2015
We will conduct foreign exploration for parasitoids of EAB in its native range including the Far East region of Russia, Korea, and China. In each of the study areas, five to 10 sites will be selected for EAB parasitoid exploration covering a wide range of habitats including upland and riparian natural forests with Oriental Fraxinus spp. and plantations of both North American and Oriental Fraxinus spp. At each selected site, ash trees will be examined for signs of EAB infestation in late summer, fall, and/or spring. Ash trees exhibiting any signs of infestation will then be felled, and debarked for sampling different immature stages of EAB and associated parasitoids. Promising parasitoid species collected from the foreign exploration will then be tested in quarantine against a list of North American Native wood-boring beetles to determine their host specificity. After completing host range studies, we will develop an environmental impact assessment (EIA) of proposed releases of the promising parasitoids, which will be selected based on their efficacy against EAB in the native range (Asia) and host specificity against North American native (nontarget) wood boring beetles, and submit the EIA to USDA APHIS (or other regulatory authorities) for review and approval. Once the selected candidate species are cleared for release by Federal and State regulatory authorities, efforts will be directed towards field release and establishment along with development of mass-rearing technologies and impact assessment.