Long Island Horticultural Society
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Welcome to LIHort.org

Long Island Horticultural Society -- Celebrating over 80 years of promoting gardening on Long Island through friendships and education



All meetings are held at Planting Fields Arboretum State Historic Park in Oyster Bay


Sunday, June 25, 2017 in The Conference Center

12:30 PM Doors open

1:00 PM Tutorial: Carol Samuels - "Jamaican Vegetables"

2:00 PM Margery Daughtrey, Ornamentals Plant Pathologist, Cornell University Plant Pathology and Plant-Microbe Biology Section and Dan Gilrein, Extension Entomologist, Cornell Cooperative Extension of Suffolk County

Topic: Southern Pine Beetle, Oak Wilt and Other New Plant Threats on Long Island

There are some new plant pests and diseases in our landscapes on Long Island. This presentation will talk about some of the latest threats in the region, such as Southern Pine Beetle, Oak Wilt, Boxwood Blight, Viburnum Leaf Beetle, and others affecting our ornamental plants. We will show what to look for and discuss what is being done about them.

Margery Daughtrey is the Senior Extension Associate / Ornamentals Plant Pathologist at Cornell University Plant Pathology and Plant-Microbe Biology Section. Her responsibilities include supporting the commercial horticulture industries by diagnosing and researching solutions of diseases on ornamentals. She is well known on the national and international speaking circuits. Daughtrey holds a B.S. degree in Biology from the College of William and Mary and an M.S. in Plant Pathology from the University of Massachusetts. Daughtrey is coauthor of several books, including Diseases of Herbaceous Perennials, published in 2009 by APS.

Dan Gilrein is the Extension Entomologist for Cornell University Cooperative Extension providing industry support through his applied research program, diagnostic services, and education programs concerning insect and mite pest management in agricultural production and landscape maintenance.

Both Margery and Dan work with the commercial landscape, nursery and greenhouse production industries and are based at the Long Island Horticultural Research and Extension Center, Riverhead.




some unique garden tips - click here


Please remember to bring non-perishable food for Long Island Cares.


"Come and visit me sometime. My flowers would like to meet you."


Invasive or Native Plants? Learn more here....


TELL YOUR FRIENDS ABOUT THE BENEFITS OF LIHS MEMBERSHIP Opportunities to learn from others, to go on wonderful trips, to volunteer your gardening knowledge and muscle to organizations, to meet new friends. Membership dues are a bargain at only $35 per year. Tell your friends about us and encourage them to join our wonderful organization. The membership form can be found on the website at www.lihort.org/membership/membership.pdf


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2017 Meeting Schedule


Threat Alerts on Long Island

Oak Wilt Information by NYSDEC

Oak Wilt Brochure by USDA


Bringing Nature Home

Doug Tallamy's list of what to plant


The Gardens of Amalfi 2016 video


Current Newsletter


Video of the Trip to Ireland


Not sure what needs to be done in your garden this month? Take a look at Irene Virag's garden calendar



Important announcements, last-minute changes, other news. Please send your contact information to Nanci Allen, our Membership Chair.



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Copyright 2017 Long Island Horticultural Society.