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Lower Thames Valley Conservation AuthorityLower Thames Valley Conservation Authority
  • Home
  • About Us
    • Column 1
      • About the LTVCA
      • Budget and Financial Statements
      • Vision / Mission Statement
      • Board Packages and Minutes
      • Employment
      • Events
    • Column 2
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      • Fees & Publications
      • What’s New?
      • Public Social Media Policy
  • Programs
    • Planning and Regs
      • Plan Input and Review
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      • Water Control Structures
      • The History of Flooding
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      • Flood Notice Types
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    • Education & Outreach
      • Education Programs and Field Trips
      • Inclass and Virtual Programs
      • Professional Development
      • Ska-Nah-Doht Village & Museum
      • Habitat Fact Resources
    • Conservation Areas
      • Camping
      • Parking Passes
      • All Conservation Areas
    • Conservation Services
      • Tree Planting
      • Imagine McGregor
      • Grants for Landowners
      • Feature Partnership & Restoration Projects
      • Livestock Health
      • Lower Thames Soil Health Program 2022
      • Pollinator Habitats
      • Species at Risk
      • Invasive Species
      • McGregor and Jeannettes Creek Phosphorus Reduction Program
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      • Carey Carolinian Arboretum and Trail
      • Lower Thames Valley Conservation Foundation Bursary
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      • Donate to Conservation
      • Volunteer Directors and Members
    • Column 3
      • Ontario Trillium Foundation Capital Grant for Wheelchair Accessible Boardwalk Replacement at Longwoods Road CA
      • Trillium ‘Seed’ Grant – Londwoods Feasibility Study 2018-2019
      • Conservation Foundation Privacy Policy
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  • Offices And Staff Have Returned to Regular Operations

Spring – A Great Time to Help Your Local Forests and Trails

Home EventsSpring – A Great Time to Help Your Local Forests and Trails
Removing Garlic Mustard

Spring – A Great Time to Help Your Local Forests and Trails

April 25, 2019

Garlic Mustard Alliaria petiolata is a non-native plant that is harming our forest environment. The roots release a toxic chemical called sinigin that acts to damage the roots of surrounding plants, shrubs and trees and also kill the fungal mat underlying the soil. The fungi are interconnected with the shrub and tree roots and if this mat is removed, forest trees can’t get the moisture they need to survive dry summers.

You can help!  Garlic Mustard (GM) takes 2 years to grow and produce seed. In spring you can find the 1st year’s growth, called a basal rosette. This rosette is green even under the snow so shows up early in spring, before other native spring plants emerge from the soil. By digging out this rosette, you can stop the plant flowering and making seed, which is the way it spreads.

Steps –

  1. Grasp the rosette from the bottom, gently lift and use a gardening trowel to dig down and around the rosette, leaving about an inch to 2 inches gap between the trowel and the outer leaves. This ensures all root stalks are removed.
  2. Gently shake the rosette to remove loose soil. As GM seed grows quickly in disturbed soil it is advised to tamp (push and flatten) the loose soil remaining and re-cover with dead leaves.
  3. Now you get to enjoy a nice salad! GM leaves, seeds and flowers are edible and can be eaten raw or used in cooking to add a garlic-mustard taste to your supper.
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What’s New?

  • Conservation Ontario Announces New General Manager
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