Hort. Lab tech. Michael Wilson looking into our lab microscope to identify a specimen.

Horticulture Diagnostic Lab

While our offices are closed to the public, our Horticulture Diagnostic Laboratory will remain available to answer your questions during this time. Please contact the lab director, Mike, at for the quickest response. You may also leave a voicemail for the lab at (845) 429-7085, option 3. We will attempt to return all messages in a timely fashion.

Horticulture Lab Hours:

April - October:

Monday– Thursday

9:00am – 2:00pm

November - March:

Monday – Thursday

9:00am– Noon

The Horticulture Lab of Cornell Cooperative Extension offers numerous services to residents of Rockland County. The Lab offers environmentally friendly and sustainable methods of advice for a multitude of problems.

Advice available on the following (but not limited to):

  • Gardening, plant selection, and yard care
  • Plant and pest problems (ex. deer, rodents, spider mites)
  • pH soil testing -please follow our Sampling Procedures
  • Indoor pest identification and treatment
  • Tick Identification and Management
  • Composting

Horticulture Fact Sheets Online
Feel free to download our free online fact sheets or mail in the Fact Sheet Order Form:

Download our Diagnosis forms prior to visiting us.

For more information, call our Horticulture Diagnostic Lab at
(845) 429-7085, option 3.

or Email your questions to our Horticulture Lab Staff.


Michael Wilson
Horticulture Lab Technician
(845) 429-7085, option 3

Last updated April 20, 2020