Adult spotted lanternfly (IMAGE) USDA Forest Service - Northern Research Station Caption Spotted lanternfly is a destructive insect that feeds on a wide range of fruit, ornamental, and hardwood trees, including grapes, apples, walnut, and oak; a serious threat to the United States' agriculture and natural resources. Credit USDA Photo by Lance Cheung. Usage Restrictions No restrictions. License Public Domain 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.