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Symptoms of potassium deficiency.
Assessing and Managing Potassium Concentration in the Vineyard - Articles Articles
Potassium (K) plays a critical role in many plant physiology and biochemistry processes such as photosynthesis, osmoregulation, and enzyme activation. More
Spotted lanternfly feeding on grapevine. Image by Erica Smyers.
Updated Insecticide Recommendations for Spotted Lanternfly on Grape - Articles Articles
Insecticide recommendations for spotted lanternfly in grape, updated August 2018. More
Spotted Lanternfly Grape Pest Alert
Spotted Lanternfly Grape Pest Alert - Articles Articles

Spotted Lanternfly Grape Pest Alert

Heather L Leach, 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
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
Botrytis bunch rot. Photo by W.J. Moller
Botrytis Bunch Rot: Winemaking Implications and Considerations - Articles Articles
This article will review the implications of molds and fruit rots on wine composition and quality and discuss remedial actions in the winery. More
Freeze damage on Concord. Photo: Michela Centinari, Penn State
Understanding and Preventing Spring Frost and Freeze Damage - Articles Articles
When early spring warming is followed by below freezing temperatures, grape growers keep their fingers crossed hoping to escape freeze injury. More
Mowing the sudex cover crop at the blueberry site at Five Elements Farm. The sudex was sown to compete against weeds, and was incorporated to add organic matter to the soil. Photo by J. Bozzelli.
Adding Small Fruits to Your Small Farm - Articles Articles

Adding Small Fruits to Your Small Farm

Marley E Skinner, Robert Pollock, Mike Basedow

Consider diversifying your farm by adding small fruit like blueberries or strawberries. More
University of Georgia Plant Pathology, University of Georgia, Bugwood.org
Grape Disease - Black Rot Photo Gallery - Articles Articles
Slideshow depicting various stages of black rot on grapes. More
Pest Alert - Omnivorous Leafroller
Pest Alert - Omnivorous Leafroller - Articles Articles
The omnivorous leafroller has recently been confirmed in a greenhouse in Pennsylvania. Your assistance is needed in monitoring this pest indoors and outdoors in Pennsylvania. More
The Home Fruit Garden - Getting Started
The Home Fruit Garden - Getting Started - Articles Articles
Home fruit gardening offers many benefits—exercise, enjoyment, a supply of delicious fruits, enhancement of the home landscape, and a truly educational experience. More
Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
Home Orchards: Table 2.4. Plant Protection Materials - Articles Articles
Informational table showing pesticides available for home garden use on various fruit crops. More
Home Fruit Gardens: Table 6.4. Table and Juice Varieties
Home Fruit Gardens: Table 6.4. Table and Juice Varieties - Articles Articles
Informational table showing table and juice grape varieties in Pennsylvania. More
Home Fruit Gardens: Table 6.3. Wine Grape Varieties for Pennsylvania
Home Fruit Gardens: Table 6.3. Wine Grape Varieties for Pennsylvania - Articles Articles
Informational table showing wine grape varieties for Pennsylvania. More
Home Fruit Gardens: Table 6.6. Pesticide Recommendations for Grapes
Home Fruit Gardens: Table 6.6. Pesticide Recommendations for Grapes - Articles Articles
The sprays listed below will not provide adequate control of black rot. More
Home Fruit Gardens: Table 6.2. Relative Cold-hardiness of Grapevines
Home Fruit Gardens: Table 6.2. Relative Cold-hardiness of Grapevines - Articles Articles
Informational table showing cold-hardiness of grapevines grown in Pennsylvania. More
Home Fruit Gardens: Table 6.1. Site Criteria for Planting Grapes
Home Fruit Gardens: Table 6.1. Site Criteria for Planting Grapes - Articles Articles
Informational table showing minimum winter temperatures for growing grapes. More
University of Georgia Plant Pathology, University of Georgia, Bugwood.org
Home Fruit Gardens: Table 6.5. Efficacy of Pesticides for Grape Disease Control - Articles Articles
Informational table showing efficacy of pesticides for grape disease control. More
Home Fruit Gardens: Table 1.1. Fertilizer Equivalents
Home Fruit Gardens: Table 1.1. Fertilizer Equivalents - Articles Articles
Use this table to determine the equivalent amounts of nitrogen, phosphate, and potash of each fertilizer material. More
Backyard Grape Growing
Backyard Grape Growing - Articles Articles
This article provides information on selecting cultivars, purchasing and planting grapes, nutritional requirements, pruning, training/trellis systems, and pests. More
Home Fruit Gardens: Table 1.2. Monthly Maintenance
Home Fruit Gardens: Table 1.2. Monthly Maintenance - Articles Articles
Your schedule may vary from the one below by as much as 2 weeks (earlier or later) depending on the region of Pennsylvania in which you are located. More
Home Orchard: Table 2.3. Pesticide Application Amounts
Home Orchard: Table 2.3. Pesticide Application Amounts - Articles Articles
Informational table showing pesticide application amounts on fruit. 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
Building and Operating a Home Garden Irrigation System
Building and Operating a Home Garden Irrigation System - Articles Articles

Building and Operating a Home Garden Irrigation System

Tom Butzler, Thomas Maloney, Darryl Dressler

Have you ever wondered how commercial fruit and vegetable growers can consistently get such huge quantities of great produce even in dry years? More
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