Penn State Extension

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The Scholl Family
Twilight At-Market Workshop at Scholl Orchard - Workshops Workshops
The Scholl family will give a tour of their facility, give a history of their business and explain what makes their business successful. More
Orchard IPM - Field Guide to Tree Fruit Disorders, Pests, and Beneficials
Orchard IPM - Field Guide to Tree Fruit Disorders, Pests, and Beneficials - News News
This Penn State Extension publication, in Spanish and English, is designed for use by orchard employees - often the first individuals to detect a new occurrence of a fruit disease or insect pest. More
Spring Orchard Meetings
Spring Orchard Meetings - Workshops Workshops
Penn State Extension has planned ten educational meetings for commercial tree fruit growers this spring. More
Tyvek® tree guard. Photo: Rob Crassweller
Orchard Weed Control - Protection of Tree Trunks - Articles Articles
Some of the burn-down herbicides have been implicated as possible causes of damage to young tree trunks that have green tissue on portions of the lower trunk. More
Tips and tricks to mitigate 2018 disease problems this fall. Photo: K. Peter, Penn State.
Tree Fruit Disease Management: Final Touches on the 2017 Season - News News
Growers can get a jump on management for this fall to control fungal and bacterial disease in apples and stone fruit to mitigate problems in the 2018 season. More
Bacterial spot on peach fruit. Photo by S. Bardsley.
Stone Fruit Disease - Bacterial Spot, Refining Disease Management - Articles Articles
Bacterial spot, Xanthomonas arboricola pv. pruni, is a difficult disease to manage. More
Time to Download the 2018 Spray Record-Keeping Spreadsheet
Time to Download the 2018 Spray Record-Keeping Spreadsheet - News News
The updated Penn State Extension Spray Record-Keeping Spreadsheet for apples, pears, peaches, and cherries is now available from Penn State Extension. More
Photo by Tara Baugher
Spray Record-Keeping - Tools and Apps Tools and Apps
This spreadsheet should be used with a season-long Integrated Pest Management Plan. Talk to your Penn State Extension educator if you need help building one. More
Plum Pox Virus
Plum Pox Virus - Videos Videos
Part 3, 6 minutes. More
Fruit Tree Propagation - Grafting and Budding
Fruit Tree Propagation - Grafting and Budding - Articles Articles
This article provides information on a few successful propagation methods that can be used on fruit trees. More
Soil testing throughout the project helps determine if any soil amendments are needed. Photo: Kristi Kraft
Start Farming: Establishing Farmers Prepare Fields for Fruit Trees - Articles Articles
"Models for the Future" demonstration plots showcase best management practices for producers in the establishing years of developing their farm enterprises. More
Photo credit Mary Ann Frazier, Penn State Extension.
Who are Our Pollinators? - Articles Articles

Who are Our Pollinators?

Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Krishona Martinson

Approximately three quarters of our major food crops are pollinated. Here we will look at how wild bees provide insurance against ongoing honey bee losses. More
Small Striped Bee (Halictus). Photo USGS Bee Inventory.
What Can We Do to Encourage Native Bees? - Articles Articles

What Can We Do to Encourage Native Bees?

Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Tianna DuPont

Pollinators need a diverse, abundant food source and a place to build their nests and rear their young. If we keep these two elements in mind we can encourage native bee populations. More
Varroa mite parasitizing bee. Thought to be one of the major factors contributing to hive losses. Photo Alex Wild.
Pollinator Declines - Articles Articles

Pollinator Declines

Christina Grozinger, Ph.D., Shelby Fleischer, Ph.D., Tianna DuPont

Domestic honey bees hives are down by 59% compared to 60 years ago with rapid declines over the last forty years. The populations of some native bee species may also be declining. More
Orchard Wildlife Management - Birds
Orchard Wildlife Management - Birds - Articles Articles

Orchard Wildlife Management - Birds

Margaret C. Brittingham, Ph.D.

On many farms or orchards, bird damage is minimal while for others, problems from birds can be substantial. More
Photo credit: Steve Culman
Soil Quality Information - Articles Articles
Healthy soils yield healthy crops, But what is healthy soil and how do we achieve it? More
Soil Health: Soil Physical Properties
Soil Health: Soil Physical Properties - Videos Videos

Soil Health: Soil Physical Properties

Marley E Skinner, Megan Chawner, Tianna DuPont

5:23

Here we talk about some of the physical properties of soil including organic matter, aggregate stability, water infiltration and compaction. More
Guide to Farming: Tree Fruits
Guide to Farming: Tree Fruits - Articles Articles
Before planting your first fruit tree, you should conduct your own research regarding production, marketing, and financing the enterprise. More
Plum Pox Virus
Plum Pox Virus - Articles Articles

Plum Pox Virus

Kari A. Peter, Ph.D.

Plum pox virus (PPV), or Sharka, is a viral disease that infects not only plum but other economically important Prunus species. More
Plum Pox Virus on Plum
Plum Pox Virus on Plum - Articles Articles
PPV symptoms on plum. More
Young galls are light in color and with age become dark and hard, ½ inch to 3 or 4 inches in diameter. Photo by B. Butler.
Tree Fruit Disease - Crown Gall - Articles Articles

Tree Fruit Disease - Crown Gall

Kari A. Peter, Ph.D.

Crown gall is caused by a bacterium, Agrobacterium tumefaciens, and affects apples, pears, quince, peaches, nectarines, apricots, plums, and cherries. More
Source: Joseph OBrien, USDA Forest Service, Bugwood.org
Plum Disease - Plum Leaf Spot - Articles Articles

Plum Disease - Plum Leaf Spot

Kari A. Peter, Ph.D.

Leaf spot of plums and prune-type plums is caused by the fungus Coccomyces prunophorae. More
Source: Bruce Watt, University of Maine, Bugwood.org
Stone Fruit Disease - Powdery Mildew of Cherry and Plum - Articles Articles
The disease is caused by Podosphaeria oxyacanthae, one of the common species of the powdery mildew group of fungi. More
Source: Mike Schomaker, Colorado State Forest Service, Bugwood.org
Stone Fruit Disease - Plum Pockets - Articles Articles

Stone Fruit Disease - Plum Pockets

Kari A. Peter, Ph.D.

In the northeastern United States, the most important disease affecting American-type plums is known as plum pockets, or bladder plum. It is caused by Taphrina communis. More
Photo by G. Moorman
Plum Disease - Black Knot - Articles Articles

Plum Disease - Black Knot

Kari A. Peter, Ph.D.

Black knot of plum, caused by the fungus Dibotryon morbosum, is well-named because of the characteristic black, warty knots it forms on branches of infected trees. More
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