Penn State Extension

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Photo by David Almquist on Bugguide.org, used with permission.
Camphor Shoot Borer (Cnestus mutilatus) - Articles Articles
Camphor shoot borers are an introduced species of ambrosia beetle that attack small-diameter branches and trunks of stressed, weakened, and dying trees. They also accidentally bore holes into plastic gasoline containers, hoses, and tanks. More
Insects on Real Christmas Trees
Insects on Real Christmas Trees - Articles Articles

Insects on Real Christmas Trees

Michael J. Skvarla

Most real Christmas trees are free of insects and other arthropods. However, it is possible that some trees may harbor one or more species. More
Asian longhorned ticks are can be found on deer and other wildlife, as well as livestock and companion animals.
Asian Longhorned Tick, Haemaphysalis longicornis - Articles Articles

Asian Longhorned Tick, Haemaphysalis longicornis

Erika Machtinger, Michael J. Skvarla

The Asian Longhorned tick is a recent invasive tick to Pennsylvania. This tick can be found on wildlife and on livestock. It is important to be aware of the presence of this tick and to implement prevention and control measures when necessary. More
Photo: Bill Lamont, Penn State
Pumpkin Cultivar Trial Results - Articles Articles

Pumpkin Cultivar Trial Results

Elsa Sanchez, Ph.D., Timothy Elkner, Robert Pollock, Tom Butzler, William Lamont, Jr., Ph.D.

We evaluated twenty-one pumpkin cultivars in 2016 and 2017. More
Sclerodermus Latreille
Sclerodermus Latreille - Articles Articles

Sclerodermus Latreille

Michael J. Skvarla

Sclerodermus are small wasps that can become pestiferous and sting people when they attack wood-boring beetle larvae that have infested wooden structures and furniture. More
Magnolia Leaf-Footed Bug
Magnolia Leaf-Footed Bug - Articles Articles

Magnolia Leaf-Footed Bug

Michael J. Skvarla

Magnolia leaf-footed bugs are brown bugs occasionally found on magnolia. They do not pose a risk to human health and do not cause damage to or reduce the vigor of infested trees, but may be nuisance pests. More
Jalysus wickhami. Photo © John Rosenfeld
Spined Stilt Bug - Articles Articles

Spined Stilt Bug

Michael J. Skvarla

Spined stilt bugs are an occasional pest of greenhouse tomatoes that can cause flower and fruit abortion and unsightly feeding damage in mature fruits. More
Yellowmargined leaf beetle (YMLB) adult. Photo: Michael Skvarla, Penn State
Yellowmargined Leaf Beetle Serious Pest in Pennsylvania - Articles Articles

Yellowmargined Leaf Beetle Serious Pest in Pennsylvania

Michael J. Skvarla, Shelby Fleischer, Ph.D.

Yellowmargined leaf beetle (YMLB) (Microtheca ochroloma) is a serious pest of cruciferous crops. More
Michael Skvarla, director of the Insect Identification Lab in Penn State's College of Agricultural Sciences, holds a walking stick. Photo by Amy Duke
Penn State Department of Entomology Offers Insect Identification Services - News News
Director of the Insect Identification Lab in Penn State's College of Agricultural Sciences knows his bugs More
Photo: T. Baugher, Penn State
A Brief Guide to Hand Lenses - Articles Articles

A Brief Guide to Hand Lenses

Michael J. Skvarla

Arthropods, including plant pests and biocontrol agents, are often difficult to identify with the naked eye. More
A Guide to Preserving Trees in Development Projects
A Guide to Preserving Trees in Development Projects - Articles Articles

A Guide to Preserving Trees in Development Projects

William Elmendorf, Ph.D., Henry Gerhold, Ph.D., Larry Kuhns

This publication explains tree health and environmental considerations and details how to preserve trees. More
On the Road: Huntsinger Farm – Potato Planting
On the Road: Huntsinger Farm – Potato Planting - Articles Articles

On the Road: Huntsinger Farm – Potato Planting

Elsa Sanchez, Ph.D., Tom Butzler, William Lamont, Jr., Ph.D.

Huntsinger Farm Inc. in Hegins, Pennsylvania specializes in potato production, packing, and wholesale marketing. More
Toigo Organic Farms sign. Photo: Bill Lamont
On the Road: Toigo Organic Farms - Articles Articles

On the Road: Toigo Organic Farms

Elsa Sanchez, Ph.D., Thomas Ford, William Lamont, Jr., Ph.D.

Toigo Organic Farms is a 5 acre greenhouse farm that grows primarily tomatoes year-round, along with some eggplants and peppers. More
Photo: iStockphoto.com
Fertility Considerations for Potatoes - Articles Articles

Fertility Considerations for Potatoes

William Lamont, Jr., Ph.D.

The following should be considered when developing a fertilizer program for potato production. More
Brown marmorated stink bug
Brown Marmorated Stink Bug - Articles Articles

Brown Marmorated Stink Bug

Michael J. Skvarla

The brown marmorated stink bug (BMSB) was first collected in September of 1998 in Allentown, but probably arrived several years earlier. More
Ephraim by his tomatoes in his storage facility.
On the Road: Sunrise Acres Farm - Articles Articles

On the Road: Sunrise Acres Farm

Elsa Sanchez, Ph.D., Jeffrey Stoltzfus, William Lamont, Jr., Ph.D.

We visited with Ephraim Zook at his farm in Ephrata, PA. Ephraim has been farming vegetables on 60 acres since 2000. More
Potato Grower Interview
Potato Grower Interview - Videos Videos

Potato Grower Interview

Lynn Kime, Jayson K. Harper, Ph.D., William Lamont, Jr., Ph.D.

Potato Grower Interview More
Photo: William Lamont
On the Road: New Morning Farm - Articles Articles

On the Road: New Morning Farm

Elsa Sanchez, Ph.D., Thomas Ford, William Lamont, Jr., Ph.D.

New Morning Farm is a certified organic diversified vegetable farm on 95 acres of land in Hustontown in southern Huntingdon County. More
Vegetable Gardening
Vegetable Gardening - Guides and Publications Guides and Publications

Vegetable Gardening

Elsa Sanchez, Ph.D., Timothy Elkner, Shelby Fleischer, Ph.D., Beth K. Gugino, Ph.D., Peter Ferretti, Steve Bogash, William Lamont, Jr., Ph.D., Michael Orzolek, Ph.D.

60

$10.00
Select, grow, and harvest delicious vegetables from your home garden. More
Landscape Tree Factsheets
Landscape Tree Factsheets - Guides and Publications Guides and Publications

Landscape Tree Factsheets

Henry Gerhold, Ph.D.

456

$30.00
Select trees for planting in your towns and cities. More
On the Road: Plowshare Produce
On the Road: Plowshare Produce - Articles Articles

On the Road: Plowshare Produce

Elsa Sanchez, Ph.D., William Lamont, Jr., Ph.D.

We visited with Micah and Bethany Spicher Schonberg and Gabby Bedeian at Plowshare Produce, a certified organic farm located in McAlevys Fort in Huntingdon County. More
On the Road: Yarnick's Farm
On the Road: Yarnick's Farm - Articles Articles

On the Road: Yarnick's Farm

Elsa Sanchez, Ph.D., Robert Pollock, William Lamont, Jr., Ph.D.

Yarnick’s Farm in Indiana, PA includes 250 acres of outdoor production and 20 greenhouses of varying sizes and shapes. More
On the Road: Harvest Valley Farms
On the Road: Harvest Valley Farms - Articles Articles

On the Road: Harvest Valley Farms

Elsa Sanchez, Ph.D., William Lamont, Jr., Ph.D.

We recently spent an afternoon with Larry King of Harvest Valley Farms in Valencia, Pennsylvania. Larry grows vegetables on 160 acres with his brother Art and nephew Dave. More
On the Road: Raccoon Valley Farm
On the Road: Raccoon Valley Farm - Articles Articles

On the Road: Raccoon Valley Farm

Elsa Sanchez, Ph.D., Darryl Dressler, William Lamont, Jr., Ph.D.

We headed to Millerstown in Perry County to visit Raccoon Valley Farm and farmer Lester Brubaker. More
On the Road: 4 Seasons Farm Market
On the Road: 4 Seasons Farm Market - Articles Articles

On the Road: 4 Seasons Farm Market

Elsa Sanchez, Ph.D., William Lamont, Jr., Ph.D., Thomas Maloney

We headed up to Susquehanna county to visit 4 Seasons Farm Market. 4 Seasons Farm Market is a 143 acre farm owned and operated by Tina and Gerald Carlin. More
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