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Pests and Diseases

Information on private forest pests and diseases, including spiders, worms, scale, caterpillars, weevils, mites, spotted lantern fly, knotweed, multiflora rose and other invasive weeds.
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Invasive Forest Insects
Invasive Forest Insects - Webinars Webinars
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Updates on emerald ash borer and other invasive forest pests, as well as the spotted lanternfly More
Tree of Heaven: Native Look-alikes
Tree of Heaven: Native Look-alikes - Videos Videos

Tree of Heaven: Native Look-alikes

David R. Jackson

5:06

Learn the identification characteristics of the invasive tree-of-heaven and be able to distinguish it from the native look-alikes, black walnut and staghorn sumac. More
Photo: Emelie Swackhamer, Penn State
Spotted Lanternfly Management and Pesticide Safety - Articles Articles
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. More
Photo: Emelie Swackhamer, Penn State
Fewer Spotted Lanternfly in Areas This Year as Compared to Last Year - News News
Many people in areas where there were high populations of SLF in previous years have observed fewer SLF this year. More
Spotted Lanternfly Management in Vineyards
Spotted Lanternfly Management in Vineyards - Articles Articles

Spotted Lanternfly Management in Vineyards

Heather L Leach, Dave Biddinger, Ph.D., Grzegorz (Greg) Krawczyk, Ph.D., Michela Centinari, Ph.D.

This fact sheet provides identification, damage, quarantine, and management information for the spotted lanternfly, an invasive sap-feeding planthopper that feeds on the vine trunk, shoots, and leaves of grape plants, among other crops. More
Free Meetings to Get Spotted Lanternfly Permits
Free Meetings to Get Spotted Lanternfly Permits - News News
For anyone who wishes to attend a face-to-face meeting to obtain a spotted lanternfly permit, 31 sessions have been scheduled by PDA across the quarantined area. More
Departamento de Agricultura de Pensilvania
¿Cómo Cumplir con la Normativa de la Cuarentena por la Mosca Linterna de Puntos? - Articles Articles
Una guía que reúne información sobre la identificación, el ciclo de vida, la distribución geográfica y las técnicas de manejo y control de la mosca linterna de puntos en su propiedad. More
Photo: PA Department of Agriculture
Spotted Lanternfly Management for Landscape Professionals - Articles Articles

Spotted Lanternfly Management for Landscape Professionals

Heather L Leach, Emelie Swackhamer, Amy Korman

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. More
New Resources Available on Identifying and Controlling Tree-of-Heaven
New Resources Available on Identifying and Controlling Tree-of-Heaven - News News
With recent efforts to combat the threat of spotted lanternfly Penn State Extension has recently completed several useful resources to help with the identification and control of tree-of-heaven, commonly referred to as Ailanthus. More
Tree of Heaven: Control Strategies
Tree of Heaven: Control Strategies - Videos Videos

Tree of Heaven: Control Strategies

David R. Jackson

6:37

Tree-of-heaven is especially difficult to eliminate. Learn when and how to apply control measures, including herbicides, to eradicate this prolific tree. More
Using Traps for Spotted Lanternfly Management
Using Traps for Spotted Lanternfly Management - Articles Articles

Using Traps for Spotted Lanternfly Management

Heather L Leach, Taya Etters

If you have spotted lanternflies, you can wrap sticky bands around tree trunks to stop them. This fact sheet will tell you how to make or where to purchase sticky traps, how to install them, and ways to avoid bycatch. More
Does Your Business Need a Spotted Lanternfly Permit?
Does Your Business Need a Spotted Lanternfly Permit? - Articles Articles
Find out if your business or organization is required to have a Spotted Lanternfly permit in Pennsylvania. More
Adult spotted lanternflies. Photo Credit: E. Smyers
Spotted Lanternfly Management for Homeowners - Articles Articles

Spotted Lanternfly Management for Homeowners

Heather L Leach, Dave Biddinger, Ph.D., Grzegorz (Greg) Krawczyk, Ph.D.

A guide that reviews the identification, life cycle, current distribution, and techniques for managing spotted lanternfly on your property. More
Photo: Holly Raguza, Pennsylvania Department of Agriculture
Spotted Lanternfly: Tips for Handling Yard Waste in Quarantined Areas - Articles Articles
To prevent the movement of this insect, avoid moving yard waste such as woody plant debris (fallen trees or branches and tree trimmings) outside the quarantine area. More
Updated Insecticide Recommendations for Spotted Lanternfly on Tree Fruit
Updated Insecticide Recommendations for Spotted Lanternfly on Tree Fruit - Articles Articles

Updated Insecticide Recommendations for Spotted Lanternfly on Tree Fruit

乐动体育注册 Dave Biddinger, Ph.D., Heather L Leach

Insecticide recommendations for spotted lanternfly in tree fruit, updated January 2019. More
Controlling Tree of Heaven: Why it Matters
Controlling Tree of Heaven: Why it Matters - Videos Videos

Controlling Tree of Heaven: Why it Matters

David R. Jackson

3:53

Learn about the invasive tree-of-heaven, commonly found in Pennsylvania, and how you can use it to help control another invasive species, spotted lanternfly. More
Tree of Heaven: Accurate Identification
Tree of Heaven: Accurate Identification - Videos Videos

Tree of Heaven: Accurate Identification

David R. Jackson

3:47

Learn the distinguishing characteristics of the invasive tree-of-heaven that you can use to accurately identify it. More
Araneus saevus male. Photo by Steven Jacobs, Penn State Extension
Fierce Orbweaver - Articles Articles

Fierce Orbweaver

乐动体育注册 Steve Jacobs

Araneus saevus is found from Canada into the northern United States. It can be seen in forested areas and suburbia with mature landscape plantings. More
How To Remove Spotted Lanternfly Eggs
How To Remove Spotted Lanternfly Eggs - Videos Videos

How To Remove Spotted Lanternfly Eggs

Donald Seifrit

1:14

Learn first-hand how to scrape and destroy spotted lanternfly egg masses, which are visible between October and July. More
Spotted Lanternfly: Research Update
Spotted Lanternfly: Research Update - Videos Videos

Spotted Lanternfly: Research Update

乐动体育注册 Julie Urban

22:39

A lot of scientific research is being done to increase our understanding about how the spotted lanternfly behaves and what management methods might be effective. More
Tree of heaven leaves. Credit: Bigstock
Tree-of-Heaven - Articles Articles

Tree-of-Heaven

乐动体育注册 David R. Jackson, Art Gover

Tree-of-heaven (Ailanthus altissima) also known as ailanthus, is a rapidly growing deciduous tree native to both northeast and central China, as well as Taiwan. Spotted Lanternfly, an invasive pest, is particularly attracted to Tree-of-heaven. More
Photo: Holly Raguza, Pennsylvania Department of Agriculture
How You Can Comply with the Spotted Lanternfly Quarantine Regulations - Articles Articles
Some tips to help you avoid spreading Spotted Lanternfly (SLF) and be in compliance with the Pennsylvania Department of Agriculture (PDA) regulations. More
Dead spotted lanternfly at the base of a treated tree. Photo by Pennsylvania Department of Agriculture
Treating Black Walnuts with Insecticides for Spotted Lanternfly Control - Articles Articles
Recommendations for safe pesticide applications to control spotted lanternfly infestations. More
An adult spotted lanternfly. Photo by Pennsylvania Department of Agriculture
Avoid Home Remedies to Control Spotted Lanternfly - Articles Articles

Avoid Home Remedies to Control Spotted Lanternfly

乐动体育注册 Heather L Leach

Untested homemade solutions may harm people, pets and plants. Their use can be unsafe and illegal. More
Spotted Lanternfly Banding
Spotted Lanternfly Banding - Videos Videos

Spotted Lanternfly Banding

Elizabeth Finlay, Donald Seifrit

4:33

Banding trees with sticky tape can capture and kill spotted lanternfly nymphs and adults. This non-toxic, inexpensive technique can be used on any tree. More
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