Invasive Species and Pest Control
Preventing the introduction and spread of harmful species is the most cost-effective approach to eliminating or reducing these threats. This area contains resources applicable to the maintenance of invasive species and appropriate measures for various aspects of pest control.
Spotted Lanternfly Management for Homeowners
PennState Extension
A guide that reviews the identification, life cycle, current distribution, and techniques for managing spotted lanternfly on your property.
Control Forest Pests by Becoming a Certified Pesticide Applicator
PennState Extension
Certified pesticide applicators are needed to assist with forest management activities. This article provides a step by step approach to become a certified forest pesticide applicator.
Buckthorn
PennState Extension
"This article describes common (Rhamnus cathartica) and glossy (Frangula alnus [syn. Rhamnus frangula]) buckthorns' size, flowers, fruit, leaves, and stem
Spotted Lanternfly Management and Pesticide Safety
PennState Extension
Lycorma delicatula, commonly known as the spotted lanternfly (SLF), is an invasive insect pest present in Pennsylvania and some other eastern states. SLF threatens grape production, tree health and it is a nuisance in landscapes.
Spotted Lanternfly Management for Landscape Professionals
PennState Extension
A guide that reviews the identification, life cycle, and techniques for managing SLF. While it can cause significant damage to plants, it is a nuisance pest in the ornamental and landscape industries.
Treating Black Walnuts with Insecticides for Spotted Lanternfly Control
PennState Extension
Recommendations for safe pesticide applications to control spotted lanternfly infestations.
Do Lichens Cause Harm to Trees?
PennState Extension
Lichens are often thought to be a pest or disease to trees and shrubs.
Why are My Spruce Trees Dying?
PennState Extension
Learn how to identify types of spruce trees, symptoms of two common fungal diseases, and what if any treatments are available.
White Pine Weevil
PennState Extension
The white pine weevil is considered the most destructive insect pest of eastern white pine in North America.
Western Conifer Seed Bug
PennState Extension
The western conifer seed bug feeds on Douglas-fir seeds and other species of pine. This bug can also become a nuisance to homeowners in the fall.
Tuliptree Scale
PennState Extension
The tuliptree scale is a pest of yellow poplar, or tuliptree, magnolia, and linden. This soft scale insect is so prolific that it can cover twigs and branches.
Spruce Spider Mite
PennState Extension
The spruce spider mite attacks spruce, arborvitae, juniper, hemlock, pine, Douglas-fir, and occasionally other conifers.
Fall Cankerworm
PennState Extension
The fall cankerworm is a native pest of hardwood trees in North America. It causes some defoliation in the forest every year, with larger outbreaks occasionally.
Elongate Hemlock Scale
PennState Extension
The elongate hemlock scale, sometimes known as the fiorinia scale, is a serious armored scale insect pest on ornamental and forest hemlock trees in Pennsylvania.
Elm Spanworm
PennState Extension
The elm spanworm is a serious defoliator of hardwood shade and forest trees in the eastern United States.
