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Nonnative Invasive Plants of Southern Forests

A Field Guide for Identification and Control

James H. Miller, Research Ecologist, USDA Forest Service, Southern Research Station, Auburn University, AL 36849.

Gen. Tech. Rep. SRS–62. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. 93 p.

Introduction

Invasions of nonnative plants into southern forests continue to go unchecked and unmonitored. Invasive nonnative plants infest under and beside forest canopies and occupy small forest openings, increasingly eroding forest productivity, hindering forest use and management activities, and degrading diversity and wildlife habitat. Often called nonnative, exotic, nonindigenous, alien, or noxious weeds, they occur as trees, shrubs, vines, grasses, ferns, and forbs. Some have been introduced into this country accidentally, but most were brought here as ornamentals or for livestock forage. These robust plants arrived without their natural predators of insects and diseases that tend to keep native plants in natural balance. Now they increase across the landscape with little opposition, beyond the control and reclamation measures applied by landowners and managers on individual land holdings.

The objective of this book is to provide information on accurate identification and effective control of the 33 plants or groups that are invading the forests of the 13 Southern States at an alarming rate, showing both growing and dormant season traits. It lists other nonnative invasive plants of growing concern and explains control recommendations and selective application procedures. The text and photographs were originally developed to assist in the first region-wide survey and monitoring of these invading species, conducted by the USDA Forest Service’s Forest Inventory and Analysis Research Work Unit of the Southern Research Station in collaboration with State forestry management agencies. The four-number survey codes as well as the international plant codes are given for each species.

Integrated vegetation management programs are needed to combat invading nonnative plants. Strategies of surveillance and treatment of new arrivals will safeguard lands, and reclamation of existing infestations can be achieved by concerted control measures and reestablishment of native vegetation.

Contents

Trees
   Tree-of-Heaven
   Silktree, Mimosa
   Princesstree, Paulownia
   Chinaberrytree
   Tallowtree, Popcorntree
   Russian Olive

Shrubs
   Silverthorn, Thorny Olive
   Autumn Olive
   Winged Burning Bush
   Chinese / European Privet
   Japanese Privet
   Bush Honeysuckles
   Sacred Bamboo, Nandina
   Nonnative Roses

Vines
   Oriental Bittersweet
   Climbing Yams
   Winter Creeper
   English Ivy
   Japanese Honeysuckle
   Kudzu
   Vincas, Periwinkles
   Nonnative Wisterias

Grasses
   Giant Reed
   Tall Fescue
   Cogongrass
   Nepalese Browntop
   Chinese Silvergrass
   Bamboos

Ferns
   Japanese Climbing Fern

Forbs
   Garlic Mustard
   Shrubby Lespedeza
   Chinese Lespedeza
   Tropical Soda Apple

Other Nonnative Plants Invading Southern Forests and Their Margins

General Principles for Controlling Nonnative Invasive Plants

Prescriptions for Specific Nonnative Invasive Plants

Sources of Control Information

Glossary of Important Terms

Acknowledgments

The contributions of Erwin B. Chambliss, USDA Forest Service, Auburn, AL, have been invaluable in image management and layout. Kristine Johnson, Great Smoky Mountains National Park; Johnny Randall, North Carolina Botanical Gardens; Jack Ranney, University of Tennessee; and Fred Nations, Weeks Bay National Estuarine Research Reserve, made comprehensive reviews and provided invaluable recommendations for improvements. Reviews of control recommendations were made by Ron Cornish, Dow ArgroScience; Harry Quicke, BASF Corporation; Carroll Walls, UAP Timberlands; and Michael Link, DuPont Corporation. Their knowledgeable comments greatly strengthened content and clarity.

All Plant Images by the Author Except for the Contributions by:

  • Ted Bodner, Southern Weed Science Society, Champaign, IL
  • Patrick Breen, Department of Horticulture, Oregon State University, Corvallis, OR
  • Charles T. Bryson, USDA Agricultural Research Service, Southern Weed Science Research Unit, Stoneville, MS
  • Thomas Ellis, Jr., Baldwin County Forestry Planning Committee, Bay Minette, AL
  • John W. Everest, Department of Agronomy & Soils, Auburn University, Auburn, AL
  • Jerry Gibson, Deer Park, AL
  • Kristine Johnson, Great Smoky Mountains National Park, Gatlinburg, TN
  • Keith Langdon, Great Smoky Mountains National Park, Gatlinburg, TN
  • John Meade, Department of Plant Science, Rutgers, The State University of New Jersey, New Brunswick, NJ
  • Fred Nation, Weeks Bay National Estuarine Research Reserve, Fairhope, AL
  • John M. Randall, The Nature Conservancy, University of California, Davis, CA
  • Barry A. Rice, The Nature Conservancy, University of California, Davis, CA
  • Susan Ross, Great Smoky Mountains National Park, Gatlinburg, TN
  • John Schwegman, Illinois Department of Natural Resources, Springfield, IL
  • Jody Shimp, Illinois Department of Natural Resources, Springfield, IL
  • Warner Park Nature Center, Metropolitan Board of Parks and Recreation, Nashville, TN
  • Hugh Wilson, Texas A&M University, College Station, TX

Plant Names and Plant Distribution Maps from:

  • USDA Natural Resources Conservation Service’s Plants Database: http://plants.usda.gov.
  • Images by Ted Bodner copyrighted by the Southern Weed Science Society for “Forest Plants of the Southeast and Their Wildlife Uses” and used by permission.
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The University of Georgia - Warnell School of Forest Resources and
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Last updated on Sunday, June 29, 2003 at 10:07 PM
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