Allium Leaf Miners (image) Penn State Share Print E-Mail Caption Allium leaf miner pupae are shown on an onion plant with the beginning of damage they cause. Adult leafminers are shown in the inset. Scientists fear the invasive pest is spreading on ramps. Credit Sven Spichiger / Pennsylvania Department of Agriculture 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.