Have you ever wondered about that caterpillar on your red-twig dogwood, or if you should remove the extraterrestrial-looking spiny orange koosh ball-like mass on your cedar tree? Join University of Delaware plant diagnostician Nancy Gregory and entomologist Brian Kunkel at UD’s Botanic Gardens (UDBG) on Tuesday, July 24 from 4:30 to 6:30 p.m. for “Uh-Oh … What’s That?” You will learn how to identify basic disease and insect pests, as well as the “good guys” in your garden. The class will feature both inside instruction and continue with a walk through the gardens to provide hands on identification opportunities. The cost of the class is $15 for UDBG Friends and $20 for non-members, and will occur rain or shine. Meet in room 102 of Fischer Greenhouse (behind Townsend Hall, 531 South College Ave, Newark, DE 19716). The maximum number of attendees is 25; registration and pre-payment are required. Email BotanicGardens@udel.edu or call 302-831-2531 to provide credit card information. If paying by check, make checks payable to “UDBG” and send to: UDBG University of Delaware 152 Townsend Hall Newark, DE 19716 To enjoy member discounts and other exclusive benefits, join our UDBG Friends online at the UDBG website or contact Melinda Zoehrer at BotanicGardens@udel.edu.