E. validus Female (image) Penn State Share Print E-Mail Caption This is the female Euwallacea validus that infests tree of heaven. A related beetle is killing avocado trees in the US and Israel. Credit Mathew Kasson, Penn State Usage Restrictions non commercial use only Share Print E-Mail 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.