Adult Granulate Ambrosia Beetle (IMAGE) Entomological Society of America Caption This is an adult granulate ambrosia beetle, Xylosandrus crassisculus, a pest of maple trees. Credit Photo: J. R. Baker and S. B. Bambara, North Carolina State University, Bugwood.org. Usage Restrictions Please credit J. R. Baker and S. B. Bambara, North Carolina State University, Bugwood.org. License Licensed content 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.