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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
Atracción de feromonas para la interrupción de apareamiento.
MIP – Uso de Feromonas para Controlar y Contrarrestar el Apareamiento - Articles Articles
Una feromona es un mensajero químico producido naturalmente por un organismo. Cuando es detectado por un segundo individuo de la misma especie, afecta el comportamiento de ese individuo. More
Tree Fruit Insect and Mite Control Toolbox - Pesticide Resistance Management
Tree Fruit Insect and Mite Control Toolbox - Pesticide Resistance Management - Articles Articles
A number of insect and mite pests have developed varying levels of resistance to some insecticidal chemistries over the years, including the organophosphates, carbamates, and pyrethroids. More
Female spotted lanternfly and her egg mass. Photo: Emelie Swackhamer, Penn State
Tree Fruit Insect Pest - Spotted Lanternfly - Articles Articles

Tree Fruit Insect Pest - Spotted Lanternfly

Grzegorz (Greg) Krawczyk, Ph.D.

The spotted lanternfly, Lycorma delicatula, an invasive plant hopper was first detected in Pennsylvania in the fall of 2014. More
Everybody Walk PA Miles and Comments
Everybody Walk PA Miles and Comments - Articles Articles
Check here each week for updated miles and comments. Listing are Individuals by county followed by teams by county. More
Everybody Walk PA Program Information 2018
Everybody Walk PA Program Information 2018 - Articles Articles
Join Penn State Extension in a FREE virtual walking program exploring the counties of PA. Walking will be reported April 2nd - May 27th More
Source: Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org
Tree Fruit Insect Pest - Lesser Peachtree Borer - Articles Articles

Tree Fruit Insect Pest - Lesser Peachtree Borer

Grzegorz (Greg) Krawczyk, Ph.D.

Lesser peachtree borer, Synanthedon pictipes, is an important pest in peach and cherry orchards throughout Pennsylvania and surrounding states. More
Source: Cheryl Moorehead, Bugwood.org
Tree Fruit Insect Pest - Pear Slug - Articles Articles

Tree Fruit Insect Pest - Pear Slug

Grzegorz (Greg) Krawczyk, Ph.D.

The pear slug, Caliroa cerasi, resembles a slug in appearance, but it is actually a sawfly. More
Source: Pennsylvania Department of Conservation and Natural Resources - Forestry, Bugwood.org
Tree Fruit Insect Pest - Pear Thrips - Articles Articles

Tree Fruit Insect Pest - Pear Thrips

Grzegorz (Greg) Krawczyk, Ph.D.

Pear thrips, Taeniothrips inconsequens, was introduced early this century, probably from Europe. More
Source: Ben Sale, available under creative commons license 2.0 creativecommons.org/licenses/by/2.0/legalcode
Tree Fruit Insect Pest - Spotted Tentiform Leafminer - Articles Articles

Tree Fruit Insect Pest - Spotted Tentiform Leafminer

Grzegorz (Greg) Krawczyk, Ph.D.

The spotted tentiform leafminer, Phyllonorycter blancardella, affects the leaves of apple trees throughout the growing season. More
Source: Natasha Wright, Cook's Pest Control, Bugwood.org
Tree Fruit Insect Pest - Shothole Borer - Articles Articles

Tree Fruit Insect Pest - Shothole Borer

Grzegorz (Greg) Krawczyk, Ph.D.

The shothole borer, Scolytus rugulosus, sometimes called the fruit tree bark beetle, is a native of Europe but now occurs throughout the United States. More
Scales on new growth and fruit produce deep purplish-red coloration in the tissue. Photo by G. Krawczyk.
Tree Fruit Insect Pest - San Jose Scale - Articles Articles

Tree Fruit Insect Pest - San Jose Scale

Grzegorz (Greg) Krawczyk, Ph.D.

The San Jose scale, Quadraspidiotus perniciosus, is a pest of fruit trees, but it attacks many other trees as well as shrubs. More
Young aphids congregate closely around the stem mother. This habit soon causes the death of the infested leaves and the consequent migration of the aphids. Photo by G. Krawczyk.
Tree Fruit Insect Pest - Rosy Apple Aphid - Articles Articles

Tree Fruit Insect Pest - Rosy Apple Aphid

Grzegorz (Greg) Krawczyk, Ph.D.

The rosy apple aphid, Dysaphis plantaginea, has been a major pest of apple trees since the end of the nineteenth century. More
Oriental fruit moth are gray, with a wing spread of ¼ inch; the wings are gray with dark markings. Photo by G. Krawczyk.
Tree Fruit Insect Pest - Oriental Fruit Moth - Articles Articles

Tree Fruit Insect Pest - Oriental Fruit Moth

Grzegorz (Greg) Krawczyk, Ph.D.

Oriental fruit moth, Grapholita molesta, is a pest of most stone and pome fruits. In pome fruits, its appearance and injury is similar to that of the codling moth and lesser appleworm. More
Several narrow white stripes run longitudinally along the top of the body, while a slightly wider, more distinct white line runs along each side. Photo by Greg Krawczyk.
Tree Fruit Insect Pest - Green Fruitworm - Articles Articles

Tree Fruit Insect Pest - Green Fruitworm

Grzegorz (Greg) Krawczyk, Ph.D.

The speckled green fruitworm, Orthosia hibisci, is the most common of several green fruitworm pests occurring in commercial orchards. More
The first instar larvae tunnels just under the epidermis of the fruit, resulting in the typical ribbonlike scar (primary injury). Photo by G. Krawczyk.
Tree Fruit Insect Pest - European Apple Sawfly - Articles Articles

Tree Fruit Insect Pest - European Apple Sawfly

Grzegorz (Greg) Krawczyk, Ph.D.

Since 1985, European apple sawfly (Hoplocampa testudinea) has extended its range from the northeastern portion of Pennsylvania to the Maryland border. Now this pest is common throughout Pennsylvania. More
Apple rust mites. Photo: David Biddinger
Tree Fruit Mite Pest - Apple Rust Mite - Articles Articles

Tree Fruit Mite Pest - Apple Rust Mite

Grzegorz (Greg) Krawczyk, Ph.D.

Apple rust mite, Aculus schlechtendali, is commonly found, but is rarely an important pest of apple in Pennsylvania. More
Delta trap for monitoring insect pests.
Tree Fruit Insect Pests - Spring Monitoring and Management - Articles Articles
It cannot be overstated how important it is to aggressively monitor all insect pests in each orchard, especially with the additional pressure coming from brown marmorated stink bug. More
The adult is about 1.5 inches long, mostly black, with red eyes and other reddish markings. The wings are large and clear except for orange-red veins. Photo by G. Krawczyk.
Tree Fruit Insect Pest - Periodical Cicada - Articles Articles

Tree Fruit Insect Pest - Periodical Cicada

Grzegorz (Greg) Krawczyk, Ph.D.

The periodical cicada, Magicicada septemdecim, is a large flying insect with a unique life history. It lives most of its 17-year life underground. More
The codling moth wing is generally a darker shade of gray near the base, with a dark patch containing coppery scales near the inside wing tip. Photo by G. Krawczyk.
Tree Fruit Insect Pest - Codling Moth - Articles Articles

Tree Fruit Insect Pest - Codling Moth

Grzegorz (Greg) Krawczyk, Ph.D.

Codling moth, Cydia pomonella, was introduced from Europe in colonial times and now occurs throughout North America as well as most of the world, wherever apples are grown. More
Source: Whitney Cranshaw, Colorado State University, Bugwood.org
Tree Fruit Insect Pest - Black Cherry Aphid - Articles Articles

Tree Fruit Insect Pest - Black Cherry Aphid

Grzegorz (Greg) Krawczyk, Ph.D.

The black cherry aphid, Myzus cerasi, is the most common aphid attacking cherries, primarily sweet cherries, in most parts of North America. More
Source: James Solomon, USDA Forest Service, Bugwood.org
Tree Fruit Insect Pest - American Plum Borer - Articles Articles

Tree Fruit Insect Pest - American Plum Borer

Grzegorz (Greg) Krawczyk, Ph.D.

American plum borer, Euzophera semifuneralis, has become a major indirect pest of tart cherries. More
Source: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org
Tree Fruit Insect Pest - Spotted Wing Drosophila - Articles Articles

Tree Fruit Insect Pest - Spotted Wing Drosophila

Grzegorz (Greg) Krawczyk, Ph.D.

The spotted wing drosophila (SWD), Drosophila suzukii, is an invasive species originally from Asia. More
Blister mites become active at bud break, migrate to the tender, new leaves, and burrow beneath the epidermis of the undersides of leaves to feed. This results in a gall, or blister, in which the eggs are laid. Photo by G. Krawczyk.
Tree Fruit Mite Pests - Pear Blister Mite and Pear Rust Mite - Articles Articles
Pearleaf blister mite, Phytoptus pyri, and pear rust mite, Epitrimerus pyri, are similar species, virtually invisible to the naked eye, that often are common on unsprayed trees. More
Source: Bradley Higbee, Paramount Farming, Bugwood.org
Tree Fruit Insect Pest - Mullein Plant Bug - Articles Articles

Tree Fruit Insect Pest - Mullein Plant Bug

Grzegorz (Greg) Krawczyk, Ph.D.

Mullein plant bug, Campylomma verbasci, is a “two-edged sword” of the insect world. More
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