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Four maple leaves with brown spots on them

Understanding Plant Diseases

This is a members-only program. Not a member? Click here to join!

What are those weird spots on my tree, and how do I get rid of them? Join Nicholas J. Brazee, Plant Pathologist with UMass Extension, for an introduction to the most common plant diseases in this region, from beech leaf disease to needle cast diseases in conifers. Learn how to recognize these fungi, bacteria, and viruses, and how to treat them to keep your plants looking their best.

This program takes place outdoors as a walking tour, giving us the opportunity to observe these plant diseases firsthand in their natural setting.

Accessibility: This program involves climbing some moderate hills and navigating off-path terrain.

Audience: This members-only program is geared towards adults.

Inclement weather policy: Participants will be notified via email at least one day in advance if a program needs to be cancelled due to inclement weather, and will be notified by phone if a program must be cancelled with less one day’s notice. Click here to view our full inclement weather policy. If you have questions about the status of a program, please email publicprograms@arnarb.harvard.edu (inbox monitored on weekdays) or call the Visitor Center desk between 10:00am and 4:00pm at (617) 384-5209.

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Date

Jun 04 2025

Time

6:30 pm - 8:00 pm

More Info

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Formats

Walk

Location

Bussey Street Gate
7VWC+HQ7 Boston, Massachusetts
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Bussey Street Gate

Directions

Learn about accessibility at the Arboretum.

Bussey Street Gate

By subway

Take the MBTA Orange Line to its southern end—Forest Hills. Exit through the door marked “Arnold Arboretum,” cross Washington Street, and take a left and walk up Washington Street. Enter the Washington Street Gate and walk along Blackwell Footpath. Cross the road and enter South Street Gate. Walk along Rhododendron Path and take a left onto Hemlock Hill Road. Bussey Street Gate will be on your left at the end of Hemlock Hill Road.

By bus

Take the #35 or #38 bus to Centre Street opposite Walter Street. Cross Centre Street onto Walter Street, and after a short distance, take a left onto Flora Way (formerly Bussey Street). Bussey Street Gate will be on the left.

By car

There is public parking available along Flora Way (formerly Bussey Street). Take care not to park on the sidewalk or you will risk a ticket.