U.S. Department of Agriculture (USDA) Agriculture Research Service (ARS) entomologists Matt Hentz and David Hall inspect orange trees for Asian citrus psyllids that have been killed by the beneficial fungus Hirsutella citriformis in Florida on May 21, 2012. USDA photo by Stephen Ausmus.
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U.S. Department of Agriculture
USDAgov
Member since 2009
- Taken on May 21, 2012
- Canon EOS 5D Mark II
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