invasives

Pennsylvania Invasive Plant Information

Penn State Extension has released updated guides to the invasive plants of Pennsylvania — these are excellent free info for landowners struggling with non-native plants taking over their properties.  

A synopsis of the threats posed by these invasive plants, from the Invasive Plant Sheet Series announcement:

The term “invasive” is used to describe a plant which grows rapidly, spreads aggressively, and […] degrade native environments by causing a decline in native plant species diversity. They degrade wildlife habitats for native insects, birds, and other wildlife and threaten rare species. In addition, invasive plants have been shown to inhibit forest regeneration success, and slow or halt natural succession. Once well established, invasive plants require large amounts of time, labor, and money to control or eradicate.

Invasive Plants of Pennsylvania

Japanese Knotweed - Invasive Plant in Pennsylvania - photo by Dave Jackson
Japanese Knotweed - Invasive Plant in Pennsylvania - photo by Dave Jackson

Once Pennsylvania landowners learn how to ID these invasive plants, they can effectively “implement control measures to help prevent further spread and habitat degradation,” hopes David Jackson, Penn State Forest Resources Educator, and co-author on many of the species sheets.

Direct links to the species most problematic in the Cook Forest State Park area are in the bullet list above – or find an links to all the invasive plant species fact sheets via the button above.   

Even MORE information, including the most effective methods of control, are indexed at the Penn State Extension Invasive & Competing Plants page

HWA Treatment Seminar – 14 Sept 2019

2019-09-14 CFC BOF HWA Seminar Cook Forest

HWA kills trees - Protect your Hemlocks!

Learn more about the threat, and how to treat your own trees.  This event is free to all – held at 2 pm on Saturday, 14 September, 2019, at the new Cook Forest State Park office, 100 Route 36, Cooksburg, PA 16217.  It will follow the member’s picnic and history walk hosted by the Woodland Owners of Clarion-Allegheny Valley.

Join specialists on invasive insects from the PA Bureau of Forestry for information on at-home treatment for Hemlock Woolly Adelgid (HWA), including:

  • the importance of helmock
  • the reduced cost of treatment (far less than removing dead trees!)
  • different treatment methods, including:
    • overview of available pesticides;
    • which is best for a given situation; and
    • the best seasons for treatments

followed by an on-site session during which attendees can actually apply the treatment – this single application should protect each target hemlock for seven years!

We’ll be walking along Tom’s Run for the field work – please wear long pants and closed shoes; gloves will be provided.  Attendees may be able to loan equipment from the PA Bureau of Forestry for treating their private hemlock stands – more details at the event. 

Download a printable copy of the event PDF here

a WOCAV event: Herbicides for Invasives

Herbicides for Invasive Plants

FREE seminar & field workshop – Saturday, 24 August 2019 – nine to noon @ the Rimersburg Rod & Gun Club.  Join the WOCAV, with experienced forestry heribicide specialists Dave Jackson of Penn State Extension & Bryan Rose of ArborChem for information on how, when, and why to treat some of our most problematic plant species. Agenda:

  • Silvicultural Considerations: Competing vegetation impacts. Why do we have so much of it? When is treatment necessary? Why Herbicides?
  • Products and equipment, labels, & required PPE – How to protect yourself from exposure.
  • Overview of Application Methods – Broadcast applications (Band), spot treatments, hack and squirt, basal bark, and stump treatments, recommended rates, and calibration for band treatments
  • In woods demonstrations: competing and invasive plant control applications

442 E Rod and Gun Club Rd, Rimersburg, PA 16248