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Whitney Cranshaw, Colorado State University, Bugwood.org
Snailcase Bagworm - Articles Articles
The snailcase bagworm is a moth (family Psychidae) that was accidentally introduced into the United States from Europe in the 1940s. 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
Black Knot Of Prunus in the Home Landscape
Black Knot Of Prunus in the Home Landscape - Articles Articles
The fungus Plowrightia morbosa (Apiosporina) causes the formation of dark brown to black, long, swollen galls or knots on the branches of most types of cultivated plums, prunes and cherries. More
Spotted Wing Drosophila, Part 3: Monitoring
Spotted Wing Drosophila, Part 3: Monitoring - Articles Articles
This article explains how to monitor for spotted wing drosophila, an invasive vinegar (fruit) fly first detected in Pennsylvania in 2011, using traps. More
Figure 1
Spotted Wing Drosophila, Part 2: Natural History - Articles Articles
This article provides information on the environmental, host plant, and feeding preferences and life cycle of the spotted wing drosophila. More
Spotted Wing Drosophila Part 1: Overview and Identification
Spotted Wing Drosophila Part 1: Overview and Identification - Articles Articles
This article provides information and photos to aid in identifying spotted wing drosophila, an invasive vinegar fly that was found in the Northeast in 2011. More
Spotted Wing Drosophila Part 4: Management
Spotted Wing Drosophila Part 4: Management - Articles Articles
This article provides information on managing spotted wing drosophila with cultural and chemical management practices. 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 Cherry
Plum Pox Virus on Cherry - Articles Articles
PPV symptoms on cherry. 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
Cytospora Canker of Stone Fruits in the Home Fruit Planting
Cytospora Canker of Stone Fruits in the Home Fruit Planting - Articles Articles
Cytospora canker, also known as perennial canker, peach canker, Valsa canker, and Leucostoma canker, can cause trees in young orchards to die. Infected trees in older orchards slowly decline. More
Cherry Leaf Spot in Home Fruit Plantings
Cherry Leaf Spot in Home Fruit Plantings - Articles Articles
Cherry leaf spot, caused by the fungus Blumeriella jaapii, attacks the leaves, leaf stems, fruit, and fruit stems of tart, sweet, and English Morello cherries. More
Brown Rot of Stone Fruit in the Home Fruit Planting
Brown Rot of Stone Fruit in the Home Fruit Planting - Articles Articles
Brown rot can cause a blossom and twig blight, a canker, a leaf infection, and a fruit rot. More
Bacterial Spot of Stone Fruit in Home Fruit Plantings
Bacterial Spot of Stone Fruit in Home Fruit Plantings - Articles Articles
Bacterial spot occurs in most countries where stone fruits are grown. Common hosts include peach, nectarine, prune, plum, and apricot. Other hosts are sweet and tart cherry, almond, and wild peach. 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
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