The University of Maryland has issues a Pest Alert for Maryland and surrounding states that ambrosia beetles are now active and beginning to attach trees and shrubs. If you or your clients wish to protect valuable landscape plants from these devastating pests, the time is now. Treat trees and shrubs with Up-Star EC TT&O (compare to Onyx) or with Tengard (compare to Astro or Covert)

Read more about this Pest Alert here