Invasive Species QuickSheets
Knotweed is a rhizomatous forb that grows in dense, towering, monocultures, particularly in riparian corridors. This sheet provides the management approach and prescriptions to control Japanese knotweed and its congeners giant knotweed (Fallopia sachalinense) and Bohemian knotweed (Fallopia x bohemica).
This sheet describes the management approach and prescriptions to manage common reed, more commonly known as phragmites. Phragmites is a tall (8+ feet), rhizomatous, cool-season grass that grows in monocultures in wetland areas. The species is native to the northern hemisphere, including North America. However, exotic genotypes native to Europe and Asia are highly invasive in the eastern and central U.S.
The term 'exotic shrub' covers dozens of invasive species, including such notables as multiflora rose, autumn olive, shrub honeysuckles, Japanese barberry, privets, and the buckthorns. This sheet describes a general management approach and specific prescriptions to control most any of these exotic species.
Stiltgrass is an annual, warm-season, shade tolerant grass native to East Asia that is highly problematic in forest and other natural settings. This sheet describes the management approach and prescriptions for control.
Tree-of-heaven, or ailanthus, is a highly invasive, suckering tree species native to east Asia. Ailanthus is fast-growing, and will grow in sidewalk cracks, sun-baked subsoil, as well as verdant sites. This sheet describes the management approach and prescriptions to keep this pest in check.
Purple loosestrife is an herbaceous perennial that chokes wetlands and shores. It has prominent lavender blooms, and was introduced as an ornamental as well as accidentally through ship's ballast. This sheet describes the management approach and prescriptions for control.
Mile-a-minute is a spiny, annual vine native to east Asia that can reach lengths of 20 feet. Since its introduction in York County in the late 30's, its spread covers North Carolina to Ohio to Massachusetts. This sheet details the management approach and prescriptions to control mile-a-minute.
There are a number of invasive biennial species, including garlic mustard (Alliaria petiolata), poison hemlock (Conium maculatum), and common teasel (Dipsacus fullonum). This sheet covers the management approach and prescriptions to control weedy biennials in natural area settings.
The label 'woody vines' covers a number of invasive species, including Oriental bittersweet (Celastrus orbiculatus), kudzu (Pueraria montana), porcelainberry (Ampelopsis brevipedunculata), and Chinese wisteria (Wisteria sinensis). This advisory outlines the management approach and prescriptions to control any invasive woody vine.
Natural Resource Management Factsheets
Focusing on enhancing early successional habitat, or 'young forest', is a useful framework to maintain the natural resources of Pennsylvania State Parks. Young Forest and the wildlife species that need it are threatened by development, invasive species, and changing land use. This fact sheet describes the benefits and introduces the management approaches to enhance and maintain young forest.
Herbicides are an important tool in habitat management, and a lot of work can be accomplished with simple equipment and a limited number of products. This advisory provides an overview of the herbicides and application methods most useful for natural resource management.
Mowing lawn areas of a park can easily become a 'black hole' that devours staff time at the expense of other operations. By following simple guidelines that accommodate how grass grows, the operational aspects of mowing, and desires of park visitors, you can provide a pleasing landscape with less effort.
Working Lands Factsheets
This sheet provides a quick overview of what makes Canada thistle (Cirsium arvense) such a troublesome weed, and control prescriptions suitable for sites enrolled in conservation programs.
This sheet reviews the characteristics and control methods for multiflora rose (Rosa multiflora) in conservation reserve settings.
A concise review of the biology of purple loosestrife (Lythrum salicaria) and methods to control it in conservation reserve settings.
A brief review of the growth habits of Japanese knotweed (Fallopia japonica) and its kin, giant knotweed (Fallopia sachalinense) and the hybrid Bohemian knotweed (Fallopia bohemica).
This factsheet provides an overview of the biology and control of the troublesome biennial weed common teasel (Dipsacus fullonum).
Weed control in riparian forest buffers is critical to successful establishment. This factsheet reviews timings and prescriptions to suppress undesirable vegetation in newly planted buffers.
This booklet describes basic and specific characteristics of herbicides used for non-crop sites, site and environmental considerations, and application technology.
This document describes a reduced-arithmetic calibration method known as "ounces to gallons", or using a test area of 1/128 acre so that collected spray measured in ounces translates directly to gallons sprayed per acre.