Control of

• Invasive Plants of the Eastern United States: Identification and Control
      
• Weed Control Methods Handbook: Tools and Techniques for Use in Natural Areas, The Nature Conservancy


• Plant Invaders of Mid-Atlantic Natural Areas, National Park Service
  

Costs of

• Environmental and Economic Costs associated with Non-indigenous Species in the United States, David Pimentel et al. 1999
  www.news.cornell.edu/releases/Jan99/species_costs.html

Brandywine Conservancy Invasive Species Information Sheets

• Multiflora Rose (Rosa multiflora)
  
• Oriental Bittersweet (Celastrus orbiculatus
  
• Russian Olive (Elaeagnus angustifolia)
  
• Japanese Stilt Grass (Microstegium vimineum)
  
• Mile-A-Minute (Persicaria perfoliata)
  
• Tree-of-Heaven (Ailanthus altissima)
  

Programs

• Invasive Species Initiative, The Nature Conservancy
  http://tncinvasives.ucdavis.edu
     
• Federal and State Invasive Species Activities and Programs
  www.invasivespecies.gov/    

Overview articles and information on specific invasives

• Fact Sheets (by species), Plant Conservation Alliance
  www.nps.gov/plants/alien/factmain.htm     

• Invasive and Exotic Species of North America, University of Georgia
  www.invasive.org/
     
• Weeds Gone Wild, Plant Conservation Alliance
  www.nps.gov/plants/alien/index.htm

In Pennsylvania

• The Pennsylvania Flora Project, Morris Arboretum
  www.paflora.org
• Pennsylvania Field Guide: Common Invasive Plants in Riparian Areas, Alliance for the Chesapeake Bay
  www.acb-online.org/pubs/projects/deliverables-145-1-2004.pdf
• The Dirty Dozen: PA's 12 Worst Invasives, Western Pennsylvania Conservancy
  www.paconserve.org/rc/ls-12.html

In New Jersey

• An Overview of Nonindigenous Plant Species in New Jersey, NJ DEP (112 pgs.) (includes fact sheets on individual species)
  www.nj.gov/dep/parksandforests/natural/heritage/InvasiveReport.pdf

Noxious weed lists

• Federal Noxious Weed Database
  www.invasivespecies.org/fedweeds.html

Species Information    

• Ailanthus or Tree-of-heaven (Ailanthus altissima)
  Tree-of-heaven, Morris Arboretum
  www.paflora.org/Ailanthus altissima.PDF
• Barberry, Japanese (Berberis thunbergii)
  Japanese Barberry, Morris Arboretum
  www.paflora.org/Berberis thunbergii.pdf
• Bittersweet, Asian/Oriental (Celastrus orbiculatus)
  Oriental Bittersweet, Morris Arboretum
  www.paflora.org/Celastrus orbiculatus.pdf
• Canary-grass, Reed (Phalaris arundinacea)
  Reed Canary-grass, Morris Arboretum
  www.paflora.org/Phalaris arundinacea.pdf
• Honeysuckle, Bush (Morrow's and Amur Honeysuckles (Lonicera morrowii and maackii))
  www.paflora.org/Lonicera spp.pdf
• Johnson Grass (Sorghum halepense)
  Johnson Grass and Shattercane Control, PSU Extension
  pubs.cas.psu.edu/FreePubs/pdfs/uc039.pdf
• Knotweed, Japanese (Polygonum cuspidatum)
  Japanese Knotweed, Morris Arboretum
  www.paflora.org/Polygonum spp.pdf
• Loosestrife, Purple (Lythrum salicaria)
  Purple Loosestrife, Morris Arboretum
  www.paflora.org/Lythrum salicaria.pdf
• Mile-a-minute (Polygonum perfoliatum)
  Mile-a-minute fact sheet, Connecticut Invasive Plant Working Group, USDA
  www.hort.uconn.edu/cipwg/art_pubs/docs/mile_a_minute.pdf
• Mile-a-minute background and management, Plant Conservation Alliance
  www.nps.gov/plants/alien/fact/pope1.htm
• Maple, Norway (Acer platanoides)
  Norway maple, Morris Arboretum
  www.paflora.org/Acer platanoides.PDF
• Mustard, Garlic (Alliaria petiolata)
  Garlic Mustard, Morris Arboretum
  www.paflora.org/Alliaria petiolata.PDF
• Olive, Autumn and Russian (Eleagnus umbellata and Eleagnus angustifolia)
  Autumn olive and Russian olive, Morris Arboretum
  www.paflora.org/Elaeagnus spp.pdf
  
• Paulownia (Paulownia tomentosa)
  Empress-tree, Princess-tree, Morris Arboretum
  www.paflora.org/Paulownia tomentosa.pdf
• Phragmites (Phragmites australis) 
  Common Reed, Morris Arboretum
  www.paflora.org/Phragmites australis.pdf 
• Rose, Multiflora (Rosa multiflora)
  Multiflora Rose, Morris Arboretum
  www.paflora.org/Rosa multiflora.pdf 
• Multiflora Rose management in Grass Pastures, PSU Extension
  pubs.cas.psu.edu/FreePubs/pdfs/uc117.pdf
• Shattercane (Sorghum bicolor)
  Johnson Grass and Shattercane Control, PSU Extension
  pubs.cas.psu.edu/FreePubs/pdfs/uc039.pdf
• Stilt Grass (or stiltgrass), Japanese (Microstegium vimineum)
  Japanese Stiltgrass, Morris Arboretum
  www.paflora.org/Microstegium vimineum.pdf