Penn State Extension

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Penn State Spray Record-Keeping Spreadsheet
Penn State Spray Record-Keeping Spreadsheet - News News
The downloadable Spray Record-Keeping Spreadsheet for tree fruit was updated for 2018, and it simplifies record-keeping for your packer and processor. More
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
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
Tree Fruit Disease Toolbox - Fungicide Resistance Management
Tree Fruit Disease Toolbox - Fungicide Resistance Management - Articles Articles
Resistance has sometimes resulted in pest-management-program failures. Below are presented tactics to help delay resistance to fungicides. 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
Ambrosia fruit. Photo: R. Crassweller, Penn State
Orchard Nutrition: Determining Orchard Fertility Needs - Articles Articles
The Mid-Atlantic region is blessed with an abundant supply of good fertile soils that can produce high quality deciduous fruit. More
Andrena on apple blossom. Photo: David Biddinger
Orchard Pollination: Wild Bees - Articles Articles

Orchard Pollination: Wild Bees

Dave Biddinger, Ph.D.

Managed pollinators like honey bees and mason bees are important pollinators for orchards, but research suggests that wild bees also contribute significantly to fruit tree pollination. More
Osmia cornifrons on an apple blossom. Photo: David Biddinger
Orchard Pollination: Solitary (Mason) Bees - Articles Articles
Growers of bee-pollinated crops, particularly apples, may be interested in the possible use of solitary bees as pollinators. More
Nitrogen deficiency symptoms on peach, which can be prevented by leaf analysis and block-specific fertilization.
Orchard Nutrition: An Overview - Articles Articles

Orchard Nutrition: An Overview

Robert Crassweller, Ph.D.

Nutritional requirements of fruit trees differ from those of agronomic crops, cover crops, and orchard sod. More
Collect mid-shoot leaves on current season’s growth.
Orchard Nutrition - Sample for Foliar Analysis Mid-July to August - Articles Articles
Plant tissue analysis is used to directly measure the amount of nutrients in fruit trees, and for established perennial crops, is usually a better indicator of nutrient status than a soil test. 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
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
Orchard Weed Control - Part of an IPM Plan
Orchard Weed Control - Part of an IPM Plan - Articles Articles

Orchard Weed Control - Part of an IPM Plan

Robert Crassweller, Ph.D.

Applying herbicides in the fall is key to successful weed management. The application can also be part of an integrated management approach for other orchard pests like cat facing insects and rodents. More
Tree Fruit Insect Pests - Yellow Jackets and Hornets
Tree Fruit Insect Pests - Yellow Jackets and Hornets - Articles Articles
While greater opportunities for biological control of some apple pests exist in today's orchards, we are seeing a greater diversity of generalist predators. More
Pine vole injury is found on the below-ground portions of a tree.
Orchard Wildlife Management: Preventing Vole Damage - Articles Articles

Orchard Wildlife Management: Preventing Vole Damage

Robert Crassweller, Ph.D., Tara Baugher

One of the last tasks in getting orchards ready for winter is planning your strategy to control voles and prevent their damage. More
Reentry and Preharvest Intervals - Antibiotics and Fungicides
Reentry and Preharvest Intervals - Antibiotics and Fungicides - Articles Articles
Listed below are pesticides used on tree fruits. Not all materials listed here are suggested in the spray schedules. More
Pesticidas y la Salud de los Polinizadores
Pesticidas y la Salud de los Polinizadores - Articles Articles

Pesticidas y la Salud de los Polinizadores

Sharon I Gripp, Héctor Núñez Contreras

Penn State está a la vanguardia en asuntos relacionados con la salud de los polinizadores. More
Large Plastic Delta trap with sticky liner baited with Oriental fruit moth sex pheromone lure
Orchard IPM - Insect Monitoring - Articles Articles

Orchard IPM - Insect Monitoring

Grzegorz (Greg) Krawczyk, Ph.D.

Monitoring insect pests continues to be one of the pillars of integrated pest management in Pennsylvania orchards. More
Orchard Production Systems - Transition to Higher Tree Densities
Orchard Production Systems - Transition to Higher Tree Densities - Articles Articles
Industry challenges have led to recent transitions of orchards to high density production systems. More
Fruit Production - Technical References
Fruit Production - Technical References - Articles Articles

Fruit Production - Technical References

Robert Crassweller, Ph.D.

There are a number of sources of fruit production information available depending upon the level of knowledge desired. More
Photo by M. Seetin.
Pollinators and Pesticide Sprays during Bloom in Fruit Plantings - Articles Articles

Pollinators and Pesticide Sprays during Bloom in Fruit Plantings

Dave Biddinger, Ph.D., Kathy Demchak, Ed Rajotte, Ph.D., Tara Baugher

Use of pesticides during bloom is a complicated problem with the solutions relying on understanding the detailed relationships among chemicals, pollinators and pest management needs. More
A wind machine mixes the warmer air from the upper portions of the inversion layer with the colder air near the ground, raising air temperatures around the trees by a few degrees. Photo: Tara Baugher
Orchard Frost - Protection with Wind Machines - Articles Articles
Susceptibility to frost damage depends on a tree’s stage of development, variety, and location, but certain preventative measures can be taken. More
Orchard Weed Control - Fall Herbicide Applications
Orchard Weed Control - Fall Herbicide Applications - Articles Articles
For years we have all heard the landscape green industry say that "fall is for planting". As orchardists, we should consider that fall is a very good time for applying weed control materials. More
The ground cover in an orchard must be managed just as the tree canopy is managed. The orchard floor can be divided into two distinct areas: the area between the tree rows, and the area directly underneath the trees.
Orchard Establishment - Row Middle and Tree Row - Articles Articles
The orchard floor can be divided into two distinct areas: the area between the tree rows (generally planted with a permanent cover crop), and the area directly underneath the trees. More
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