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"Week Old Chicks" by Jack Berry
Respiratory Diseases in Small Poultry Flocks - Articles Articles

Respiratory Diseases in Small Poultry Flocks

Eva Wallner-Pendleton, DVM, MS, ACPV

Poultry respiratory symptoms have many potential causes, some more serious than others. More
Diferentes tamaños de plantas inactivas. Foto: K. Demchak, Penn State
Establecimiento de Fresas - Principios Básicos - Articles Articles
Una plantación de fresa exitosa depende de que los principios básicos se apliquen correctamente en el momento de la siembra. Prestar atención a lo básico, lo llevará por el mejor camino para tener una plantación vigorosa. More
photo: AAAP
Marek's Disease in Chickens - Articles Articles

Marek's Disease in Chickens

Eva Wallner-Pendleton, DVM, MS, ACPV, Gregory P Martin, Ph.D., PAS

Marek’s Disease is by far one of the most common illnesses in small flocks and not treatable once the clinical signs have begun. Yet, it is one of the most preventable illnesses using vaccination. More
Orchard IPM - Apple Scab Scouting and Management
Orchard IPM - Apple Scab Scouting and Management - Articles Articles

Orchard IPM - Apple Scab Scouting and Management

Kari A. Peter, Ph.D., Tianna DuPont

Make sure you know where apple scab overwinters, how to monitor, and when it is most likely to appear. More
Predator mite attacking European red mite. Photo courtesy of Dr. David Biddinger
Orchard IPM - European Red Mite Biological Control - Articles Articles

Orchard IPM - European Red Mite Biological Control

Dave Biddinger, Ph.D., Tara Baugher, Tianna DuPont

Infestations of red mites can result in smaller fruit and a reduced fruit bloom the following season. More
Cold-injured primary blackberry bud (left) and uninjured secondary bud (right). Photo credit: Fumi Takeda, USDA-ARS-AFRS
Small Fruit Cold Hardiness - Winter Injury in Brambles - Articles Articles

Small Fruit Cold Hardiness - Winter Injury in Brambles

Rich Marini, Ph.D., Kathy Demchak

Weather is also becoming more variable resulting in early-winter cold snaps and winter thaws followed by extreme cold events. More
Different dormant plant sizes. Photo: K. Demchak, Penn State
Strawberry Establishment - Planting and Other Basics - Articles Articles
A successful strawberry planting hinges on getting the basics right at planting time. If you can pay attention to the basics, you are well on your way to having a vigorous planting. More
Strawberry Nutrition - Sampling Leaves for Nutrient Analysis
Strawberry Nutrition - Sampling Leaves for Nutrient Analysis - Articles Articles
When growers send in strawberry leaves for a nutrient analysis, should the petioles remain attached or be removed? 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
Symptoms typical of severe anthracnose infection on blackberry.
Blackberry Fruit Disorders - Effects on Fruit Quality - Articles Articles
This article discusses some common blackberry fruit issues, including whitening of drupelets, drupelet reddening, insect feeding injury, canker diseases and spotted wing drosophila. More
Small Fruit Mite - Broad Mites on Blackberries
Small Fruit Mite - Broad Mites on Blackberries - Articles Articles

Small Fruit Mite - Broad Mites on Blackberries

Kathy Demchak, Donn Johnson

Broad mite (Polyphagotarsonemus latus) has been problematic for pepper growers in PA for the last couple of years. Now we can add blackberries to the list of crops that they frequent. More
Source: SCRI-Dundee , Scottish Crop Research Institute, Bugwood.org
Bramble Diseases - Viruses - Articles Articles
Virus diseases can seriously damage brambles, especially raspberries, and can affect the lifetime of a planting. More
Raspberry Mosaic Virus. Photo by K. Demchak.
Bramble Diseases - Virus Control - Articles Articles
Control measures for virus diseases in brambles are aimed mainly at removing sources of the virus from within and around the planting. More
Strawberry Disease - Verticillium Wilt
Strawberry Disease - Verticillium Wilt - Articles Articles
Verticillium wilt of strawberry, caused by the soilborne fungus Verticillium albo-atrum, infects more than 300 kinds of cultivated plants. More
Bramble Disease - Verticillium Wilt
Bramble Disease - Verticillium Wilt - Articles Articles
Verticillium wilt is caused by two common soilborne fungi (Verticillium dahliae and Verticillium albo-atrum) that have a wide host range and attack more than 300 woody and herbaceous plants. More
Source: Mary Ann Hansen, Virginia Polytechnic Institute and State University, Bugwood.org
Bramble Disease - Spur Blight - Articles Articles
Red and purple raspberries are more affected by spur blight, Didymella applanata, than black raspberries. Blackberries appear to be immune. More
Source: SCRI-Dundee , Scottish Crop Research Institute, Bugwood.org
Strawberry Disease - Red Stele - Articles Articles
Red stele, or red core, Phytophthora fragariae, is the most serious disease of strawberry in areas with cool, moist soil conditions. More
Blueberry Disease - Powdery Mildew, Not Symptoms You’d Expect
Blueberry Disease - Powdery Mildew, Not Symptoms You’d Expect - Articles Articles
Powdery mildew, a warm-weather high-humidity disease, is present in some blueberry plantings. Lowbush, highbush, and rabbiteye blueberries are all affected. More
Photo by Kathy Demchak.
Strawberry Disease - Powdery Mildew - Articles Articles
Powdery mildew, Sphaerotheca macularis, occurs on a wide range of hosts and almost everywhere the strawberry is grown. More
Source: André Bolay, St. Fédér. de Recherches Agronomiques de Changins, Bugwood.org
Raspberry Disease - Phytophthora Root Rot - Articles Articles
Phytophthora root rot, Phytophthora species, is now regarded as a major cause of declining red raspberry plantings. More
Source: Edward Beasley, University of Georgia, Bugwood.org
Blueberry Disease - Mummy Berry - Articles Articles
Mummy berry, Monilinia vaccinii-corymbosi, is the most serious and widespread disease of highbush, lowbush, and rabbiteye blueberries. It is most serious following moist, spring weather conditions. More
Bramble Disease - Mosaic Virus
Bramble Disease - Mosaic Virus - Articles Articles
Mosaic affects all raspberries but seldom affects blackberries. The mosaic virus complex overwinters in infected plants and is spread by aphids. More
Photo 1. Early symptom of orange rust. Photo: K. Demchak
Bramble Disease - Managing Orange Rust - Articles Articles

Bramble Disease - Managing Orange Rust

Kathy Demchak, mahfuzur rahman

Orange rust, Gymnoconia nitens, is a systemic disease, any plants propagated from infected plants will also be infected. More
Source: Frank Louws, NCSU.
Strawberry Disease - Leather Rot - Articles Articles
Leather, or crown rot, Phytophthora cactorum, infection is favored by warm, wet weather and poorly drained soil. The fungus attacks berries in the field at all stages of growth. More
Source: Edward Sikora, Auburn University, Bugwood.org
Strawberry Disease - Leaf Spots - Articles Articles
A wide array of leaf spots infect strawberries, including birds-eye leaf spot, black leaf spot, septoria leaf spot, cercospora leaf spot, alternaria leaf spot, red spot, and angular leaf spot. More
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