Sweet Alyssum (IMAGE) Washington State University Caption Sweet alyssum is proving to be an effective control against spiders and predator bugs in fruit orchards like this one. Credit Courtesy of Washington State University Usage Restrictions None 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.