| The 61st Annual Shade Tree SymposiumMarch 16-17, 2026Lebanon Valley Expo Center80 Rocherty Road Lebanon, PA 17042 A 10% discount is offered for any company registering more than 5 employees Please call 484-523-9444 for information  
Volunteers neededWe are looking for registered attendees to help run our conference. If you are interested, please go to this link .  Interested in being a sponsor or exhibitor?Follow this link to get more information and to register for the upcoming symposium as a sponsor or exhibitor. EXHIBITOR/SPONSOR LINK    Cost:Early Registration (before February 24, 2026): 
Full Conference (Mon. & Tues.)
Member - $360.00Non-Member - $375.00 Monday Only
Member - $200.00Non-Member - $225.00 Tuesday Only
Member - $165.00Non-Member - $185.00 Trade Show Only (Good for one day and only allows access to the trade show floor)
Member - $30.00Non-Member - $40.00 Regular Registration (after February 24, 2026): 
Full Conference (Mon. & Tues.)
Member - $385.00Non-Member - $425.00 Monday Only
Member - $225.00Non-Member - $250.00 Tuesday Only
Member - $190.00Non-Member - $210.00 Trade Show Only (Good for one day and only allows access to the trade show floor)
Member - $40.00Non-Member - $50.00  Pre-Conference: 
Sunday, March 15 - Pre-Conference
9:00 AM Certification Testing Click here for ISA Test RegistrationComplimentary Pest Walk with Sandy Feather (sign-up required)Volunteer banquet       Penn-Del ISAPO Box 306Emmaus, PA |