Connecticut Invasive Plant Working Group – The Connecticut Invasive Plant Working Group (CIPWG) is a consortium of individuals, members of environmental organizations, and affiliates of municipal and state agencies whose mission is to promote awareness of invasive plants and their non-invasive exotic and native alternatives. Since 2002, CIPWG has hosted biennial invasive plant symposia. Their website houses a large collection of resources related to Connecticut’s invasive plants, including criteria for listing, CT’s invasive plant laws, current lists including early detection and research lists, a plant photo notebook, management calendar, factsheets, control methods and symposia archives.
Top 10 Invasives Remediation Calendar, This calendar serves as a guide to the timing of the management of the top 10 invasive plants identified by the Connecticut Invasive Plant Working Group.
Invasive Plants in Your Backyard, a guide to identification and control published by the Connecticut River Coastal Conservation District, 3rd edition, 2016.
Invasive Plants and Their Native Look-Alikes – an identification guide for the mid-Atlantic,
NEW! BEST MANAGEMENT PRACTICES FOR PRIORITY INVASIVE PLANTS IN THE LOWER HUDSON VALLEY (Feb 2025). A revised and expanded edition of the original 2016 report. This is a rigorous compendium of published science on the selected species for land/habitat managers, focusing on NON-CHEMICAL methods of control and including long-term management considerations.
Nix the Knotweed – A non-chemical method of control where patience & persistence pay off
Guidelines for Disposal of Terrestrial Invasive Plant, published by the Connecticut Invasive Plant Working Group.
Asian Long-Horned Beetle – A new potential threat to many of Connecticut’s native trees. This fact sheet helps you identify the Asian Long-Horned Beetle, explains it’s life cycle, compares look-alikes, identifies the trees it targets, and explains what to do if you find an Asian Long-Horned Beetle.
Jumping Worm Fact Sheet – How to identify the jumping worm, why they are a problem and how to control the spread of these invasive worms. A must read for anyone buying or selling plants.
Spotted Lanternfly – The spotted lanternfly Lycorma delicatula, (SLF) is an exotic, invasive sap-feeding planthopper that has the potential to severely impact Connecticut’s agricultural crops, particularly apples, grapes, and hops, and ornamental trees.
Elimination of Ailanthus altissima (Chinese Tree of Heaven) – Ailanthus altissima (Tree-of-Heaven, ToH) is listed as invasive in Connecticut. In addition to forming large clonal colonies that crowd out native trees and understory plants, ToH produces allelopathic chemicals that inhibit the germination of most native plants. This is a summary of a workshop led by Peter Picone (CT DEEP) in June 2024.
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