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Scott Arboretum Logo The Scott Arboretum of Swarthmore College The Scott Arboretum of Swarthmore College The Scott Arboretum of Swarthmore College The Scott Arboretum of Swarthmore College The Scott Arboretum of Swarthmore College
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        • Visit Our “Garden of Ideas”

          Hours
          Dawn to Dusk, 365 days a year
          Office Hours
          Monday through Friday,
          8:30 am to noon and 1:00 to 4:30 pm.

        • Hours
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        • Parking
        • Virtual Tour
  • Support
        • Support the Arboretum

          Your support helps us delight, inspire, and educate the public. Donations, membership, and proceeds from special events helps us to create beautiful horticultural displays and educational programming.

        • Donations
        • Membership
        • Dedicate a Gift
  • Education & Events
        • Programming & Events for All Ages

          We are proud to offer in-person and virtual programming for adults, students, families, and children. Whether you are looking for something recreational or educational, there is a program for you.

        • CalendarView our full calendar of upcoming events & search by category
        • Celebrations & SaleSupport the Arboretum by joining in our seasonal celebrations and holiday sale.
        • Group Tours & ProgramsBook a guided tour of the Arboretum for your group—adults & youth tours available.
        • Adult ProgramsAttend lectures, guided tours, wellness programs, and more in-person and virtual events available.
        • School & Youth ProgramsEngage young nature explorers through on-site and virtual programming for individuals and groups.
        • Swarthmore College EngagementImmerse yourself in the beauty of your unique campus with courses, programs, and events designed to enhance your experience.
  • Get Involved
        • Learn & Grow With Us

          Help us maintain our gardens and plant collections by getting involved with the Arboretum.

        • Community Gardening
        • Volunteer
        • Internships
  • About
        • A “Garden of Ideas”

          The Scott Arboretum cultivates a variety of plants that create some of the region’s most intimate, authentic, and accessible horticultural experiences.

        • History
        • Gardens
        • Staff
        • Arthur Hoyt Scott Medal & Award
        • Publications
MenuMenu
  • Visit
        • Visit Our “Garden of Ideas”

          Hours
          Dawn to Dusk, 365 days a year
          Office Hours
          Monday through Friday,
          8:30 am to noon and 1:00 to 4:30 pm.

        • Hours
        • Directions
        • Parking
        • Virtual Tour
  • Support
        • Support the Arboretum

          Your support helps us delight, inspire, and educate the public. Donations, membership, and proceeds from special events helps us to create beautiful horticultural displays and educational programming.

        • Donations
        • Membership
        • Dedicate a Gift
  • Education & Events
        • Programming & Events for All Ages

          We are proud to offer in-person and virtual programming for adults, students, families, and children. Whether you are looking for something recreational or educational, there is a program for you.

        • CalendarView our full calendar of upcoming events & search by category
        • Celebrations & SaleSupport the Arboretum by joining in our seasonal celebrations and holiday sale.
        • Group Tours & ProgramsBook a guided tour of the Arboretum for your group—adults & youth tours available.
        • Adult ProgramsAttend lectures, guided tours, wellness programs, and more in-person and virtual events available.
        • School & Youth ProgramsEngage young nature explorers through on-site and virtual programming for individuals and groups.
        • Swarthmore College EngagementImmerse yourself in the beauty of your unique campus with courses, programs, and events designed to enhance your experience.
  • Get Involved
        • Learn & Grow With Us

          Help us maintain our gardens and plant collections by getting involved with the Arboretum.

        • Community Gardening
        • Volunteer
        • Internships
  • About
        • A “Garden of Ideas”

          The Scott Arboretum cultivates a variety of plants that create some of the region’s most intimate, authentic, and accessible horticultural experiences.

        • History
        • Gardens
        • Staff
        • Arthur Hoyt Scott Medal & Award
        • Publications
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Pests & Diseases
Home > Pests & Diseases
April 25, 2021 in Gardener's Almanac, Pests & Diseases / 3 Comments
Gardener’s Almanac: April 19 – Major Spring Garden Pests
Spotted lanternsfly
December 9, 2019 in Pests & Diseases / 0 Comments
An FYI on the Spotted Lanternfly
August 9, 2019 in Pests & Diseases / 0 Comments
Update: Rose Rosette Disease
August 31, 2017 in Pests & Diseases / 0 Comments
Milkweed Bugs
Wool-sower gall
May 25, 2017 in Pests & Diseases / 5 Comments
Wool-sower gall
Cedar Quince Rust
May 18, 2017 in Pests & Diseases / 0 Comments
Cedar Quince Rust
April 6, 2017 in Garden Plants, Pests & Diseases / 0 Comments
Oh No! My Cherry Trees are Brown
December 16, 2015 in Garden Practices, Pests & Diseases, Sustainability Topics / 1 Comment
What is that smell?
August 20, 2015 in Garden Design, Garden Plants, Garden Practices, Pests & Diseases, Special Interest, Sustainability Topics / 7 Comments
Beyond Beauty: Why your Rose Garden needs more then Roses
July 22, 2015 in Garden Plants, Pests & Diseases, Sustainability Topics / 2 Comments
Gardening Best Friends: Allium and Roses
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