Battling Invasive Plants - Invasive Species.pdfFishbeck, Thompson, Carr & Huber, Inc. Battling...

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Fishbeck, Thompson, Carr & Huber, Inc.

Battling Invasive Plants: A Brief Overview and Case Study

2013 Michigan Watershed Summit

Elise Hansen Tripp

Invasive:

Alien Species: not native to a particular

ecosystem (non-native, exotic, introduced)

Cause Harm

Economy

Environment

Human Health

Executive Order 13112, 1999

Photo: USFS

Negative Effects of Invasives:

Environmental

Reduce biodiversity and displace rare species

Alter hydrologic conditions

Alter soil characteristics

Alter fire intensity and frequency

Interfere with natural succession

Compete with pollinators

Poison or repel native insects

Photo: USFS

Economy

Serve as a reservoir of plant pathogens

Difficult and costly to control

Impede industries (fisheries, forestry) and

threaten agriculture

Overall drain on the economy (estimated in

1998 at $13,000,000,000)

Human Health

Reservoirs for disease (insects, rodents,

birds)

Example: West Nile virus in non-native mosquito

Food security

Water depletion

Helpful Resources: Michigan Natural Features Inventory (MNFI)

MNFI Best Control Practice Guides

•Japanese Barberry

•Oriental Bittersweet

•Autumn Olive

•Glossy Buckthorn

•Japanese Knotweed

•Common Buckthorn

•Black Locust

•Swallow-Worts

Helpful Resources: MNFI

Helpful Resources: Midwest Invasive Species Information Network

•Training Modules:

The Battle Plan

Prevention

Surveillance

Control

©Merrily Harpur (harpur.org)

Michigan Natural Features Inventory

Surveillance:

Early Detection and Rapid Response

Identify high threat species

Monitor entry points

Map and report occurrences

Photo: MNFI

Photo: FTC&H

Photo: State of Washington

Photo: ODNR

Mapping Invasive Plants:

Surveillance:

Midwest Invasive Species Information Network

Accepts data from:

MISIN registered and trained citizens

Volunteer organizations and NGO’s

State and Federal agency partners

Control:

Know the species’ life cycle!!!

Mechanical

Pulling, Digging

Cutting, Mowing

Chemical (herbicide application)

On foliage

On cut stems or stumps

Photo: MDEQ

Control:

Prescribed Burns

Appropriate for prairie/meadow ecosystem to

remove woody vegetation

Need burn plan and burn permit

May stimulate some species

Photo: USFS

Control:

Biological Control

Species specific

Utilizes natural predators that are introduced

Photo: USFS

Case Study: Pigeon River Drainage Improvements

City of Caseville, Huron County, MI

Cut-off Channel:

View to the East View to the West

Cut-off Channel:

At the water’s edge

http://www.michigan.gov/documents/deq/deq-ogl-ais-guide-PhragBook-Email_212418_7.pdf

Phragmites Life Cycle:

Phragmites Control Plan - Permitting

Obtain Certificate of Coverage for a general

permit: Aquatic Nuisance Control Activities for

Certain Non-Native Invasive Emergent Plants

$75 fee

Treatment map

List of adjacent property owners

Must submit application no later than August

Notify the neighbors

Letters

Signage: Notice and

Treatment Map

Applied glyphosate and imazapyr in September 2012

Mowed\cleared dead vegetation in Nov/Dec 2012

Burned thatch

Stockpiled soil/roots in an upland location

January 17, 2013

September 8, 2011

Treatment Report, submitted no later than

November 30

Lessons Learned

A Great Lakes Shoreline Management

General Permit was not required for mowing

phragmites below the OHWM.

Don’t staple public notice signs to lathe

Aerial application, while expensive, is an

effective means of herbicide application

Questions? Elise Tripp

616-464-3738

ehtripp@ftch.com

Battling Invasive Plants - Invasive Species.pdfFishbeck, Thompson, Carr & Huber, Inc. Battling...

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