University of Kentucky
 

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College publications are given 2-part "pub numbers" that are used to identify them. The first part (the prefix) is a set of letters that indicates which series the document belongs to. A series is a grouping of documents that share similar content.

The second part of the pub number is just a sequential number.

Series: Small Fruit Disease: Plant Pathology Factsheet



PPFS-FR-S-3
Blackberry Rosette (Double Blossom)
12/1/2017 (major revision)

 UK Authors: Michele Stanton, Nicole Ward Gauthier
 Departments: Horticulture, Kenton County, Plant Pathology<
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags:

Rosette disease, caused by the fungus Cercosporella rubi, is a serious and destructive disease of blackberries in most parts of Kentucky. In some locations, growers have been forced out of growing blackberries because of rosette disease.

web only | 3 pages | - | 18 downloads | PDF: 637 kb



PPFS-FR-S-17
Cane Diseases of Brambles
11/1/2017 (major revision)

 UK Authors: Daniel Becker, Nicole Ward Gauthier
 Departments: Horticulture, Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Anthracnose can cause severe damage to blackberries, purple and black raspberries, and to a much lesser extent, red raspberries in Kentucky. When left unchecked, anthracnose can significantly reduce overall yields, as well as limit the longevity of bramble plantings. Disease also causes loss of winter hardiness.

web only | 5 pages | 800 words | 13 downloads | PDF: 299 kb



PPFS-FR-S-26
Commercial Strawberry Fungicide Spray Schedule Worksheet and Sample Spray Guide
8/1/2017 (new)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

A fungicide spray guide and worksheet for commercial strawberry growers.

web only | 2 pages | 419 words | 11 downloads | PDF: 230 kb



PPFS-FR-S-25
Backyard Berry Disease and Disease Management Using Cultural Practices (with Low Spray, No Spray and Organic Options)
6/1/2016 (new)

 UK Authors: Ric Bessin, Kimberly Leonberger,
 Departments: Entomology, Horticulture, Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, organic produ

Backyard berry (blueberry, raspberry, blackberry, and strawberry) production requires a proactive approach to disease, insect, and weed management. Preventative practices are recommended to minimize inputs. While intensive culture may result in the highest quality fruit, reduced inputs can result in acceptable fruit with minor crop losses or aesthetic maladies. This guide focuses on preventative cultural practices with options of low-input pesticide applications. Refer to the homeowner fruit spray guide (ID-21) for a more complete pesticide spray schedule.

web only | 4 pages | 1,260 words | 41 downloads | PDF: 1,037 kb



PPFS-FR-S-24
Backyard Grape Disease and Pest Management Using Cultural Practices (with Low Spray, No Spray and Organic Options)
6/1/2016 (new)

 UK Authors: Ric Bessin, Kimberly Leonberger,
 Departments: Entomology, Horticulture, Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, organic produ

Backyard grape production requires a proactive approach to disease, insect, and weed management. Preventative practices are recommended to minimize inputs. While intensive culture may result in the highest quality fruit, reduced inputs can result in acceptable fruit with minor crop losses or aesthetic maladies. This guide focuses on preventative cultural practices with options of low-input pesticide applications. Refer to the homeowner fruit spray guide (ID-21) for a more complete pesticide spray schedule.

web only | 4 pages | 1,263 words | 25 downloads | PDF: 1,213 kb



PPFS-FR-S-23
Simplified Backyard Grape Spray Guide
4/1/2016 (reviewed)

 UK Authors: Ric Bessin, John Strang,
 Departments: Entomology, Horticulture, Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

A simplified backyard grape spray guide (table).

web only | 1 pages | 323 words | 21 downloads | PDF: 351 kb



PPFS-FR-S-22
Sample Fungicide Spray Schedule for Commercial Bramble
4/1/2016 (reviewed)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

A sample fungicide spray schedule for commercial bramble (table).

web only | 1 pages | 152 words | 7 downloads | PDF: 236 kb



PPFS-FR-S-21
Sample Fungicide Spray Schedule for Commercial Blueberry
4/1/2016 (reviewed)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

A sample fungicide spray schedule for commercial blueberry growers (table).

web only | 1 pages | 197 words | 7 downloads | PDF: 280 kb



PPFS-FR-S-20
Commercial Grape Fungicide Schedule Worksheet and Sample Spray Guides
4/1/2016 (new)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

A fungicide schedule worksheet and two sample spray guides for commercial grape growers.

web only | 3 pages | 599 words | 5 downloads | PDF: 427 kb



PPFS-FR-S-18
Effectiveness of Fungicides for Management of Grape Diseases
3/1/2016 (new)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

This guide is a decision-making tool to help growers select fungicides from different chemical classes (FRAC). Additional information can be found in a number of UK Cooperative Extension Service publications, including ID-232, or by contacting county Extension agents.

web only | 5 pages | 1,450 words | 4 downloads | PDF: 407 kb



PPFS-FR-S-15
Effectiveness of Fungicides for Management of Strawberry Diseases
3/1/2016 (new)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

This guide is a decision-making tool to help growers select fungicides from different chemical classes (FRAC). Additional information can be found in a number of UK Cooperative Extension Service publications, including ID-232, or by contacting county Extension agents.

web only | 3 pages | 885 words | 7 downloads | PDF: 398 kb



PPFS-FR-S-19
Blueberry Root Rot
5/1/2015 (new)

 UK Authors: Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Blueberry is considered one of the most disease-free fruit crops in Kentucky. Many of the diseases that affect blueberry result in minor damage. However, the most common disease of blueberry, Phytophthora root rot, can cause severe dieback and often results in plant death. The causal agent of blueberry root rot is Phytophthora cinnamomi, a soilborne water mold that occurs world-wide and can infect a wide range of hosts, including woody ornamentals. Under optimal conditions, the pathogen proliferates, and disease symptoms occur.

web only | 3 pages | 993 words | 1 download | PDF: 702 kb



PPFS-FR-S-16
Black Rot of Grape
10/1/2012 (new)

 UK Authors: Cheryl Kaiser, Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Black rot is the most prevalent and one of the most important grape diseases in Kentucky. While this disease can affect all young developing plant tissues above ground, fruit infections are the most destructive. Without an adequate disease management program, both home and commercial vineyards suffer significant yield losses.

web only | 4 pages | 1,272 words | 1 download | PDF: 555 kb



PPFS-FR-S-5
Strawberry Anthracnose
2/1/2012 (minor revision)

 UK Authors: John Hartman, Nicole Ward Gauthier
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Anthracnose can be a serious problem in Southern and Midwestern strawberry plantings. The disease may appear as a fruit or crown rot, both of which severely reduce plant stands and yields. Fruit rot, the most common form of anthracnose, appears as fruit begins to ripen in late spring. Crown rots, on the other hand, can develop in young plants soon after planting or when weather warms in spring.

web only | 3 pages | 815 words | 1 download | PDF: 293 kb



PPFS-FR-S-14
Fruit Rots of Grape
10/1/2008 (new)

 UK Authors: John Hartman, Cheryl Kaiser
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Kentucky's typically wet springs and warm, humid summers favor the development of several fruit rots of grape. These include anthracnose, bitter rot, black rot, Botrytis bunch rot, ripe rot, and sour rot.

web only | 7 pages | 2,467 words | 1 download | PDF: 358 kb



PPFS-FR-S-13
Downy Mildew of Grape
9/1/2008 (new)

 UK Authors: Julie Beale, John Hartman, C
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Downy mildew is an important disease of commercial and backyard grapes in Kentucky. This disease causes direct losses when flowers, clusters, and shoots decay and yields are reduced. Indirect losses result when premature defoliation predisposes grapevines to winter injury. It may take a vineyard several years to fully recover after severe winter injury.

web only | 3 pages | 987 words | 2 downloads | PDF: 282 kb



PPFS-FR-S-9
Poor Fruit Set in Brambles
9/1/2008 (new)

 UK Authors: John Hartman
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Poor fruit set and sterility commonly occur on bramble fruits (red raspberries, black raspberries, and blackberries) both in commercial and home plantings. Typically the fruit fails to develop or small misshapen berries form. When an insufficient number of drupelets fully develop, they tend to separate so that the fruit "crumbles" when picked. This symptom, referred to as "crumbly berry," is another common result of poor fruit set.

web only | 4 pages | 1,393 words | 1 download | PDF: 234 kb



PPFS-FR-S-7
Phytophthora Root Rot of Brambles
7/1/2008 (new)

 UK Authors: John Hartman
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Brambles that are subjected to wet soil conditions or periods of flooding are often predisposed to Phytophthora root rot. Excess water not only promotes susceptibility of roots to this disease, but also aids the fungus in moving to new infection sites. Phytophthora root rot is primarily a disease of raspberries; however, it can also occur on blackberries.

web only | 2 pages | 655 words | 1 download | PDF: 296 kb



PPFS-FR-S-8
Strawberry Fruit Rots
6/1/2008 (new)

 UK Authors: John Hartman, Cheryl Kaiser
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Strawberry fruit rot diseases often make it difficult to obtain high yields of quality berries. Kentucky's typically moist springtime growing conditions favor these diseases, which often begin with infections of flowers at bloom. Diseases causing the decay of developing and ripe strawberries include gray mold, leather rot, and anthracnose.

web only | 5 pages | 2,025 words | 2 downloads | PDF: 274 kb



PPFS-FR-S-10
Blueberry Diseases
1/1/2008 (new)

 UK Authors: Paul Bachi, Julie Beale, John H
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Kentucky blueberry growers sometimes experience plant and crop losses due to diseases. While most losses are due to root rot, or to stem and twig canker diseases, fruit rots and nutritional problems can also reduce yields. With good crop management, most blueberry diseases can be avoided.

web only | 4 pages | 1,107 words | 2 downloads | PDF: 292 kb



PPFS-FR-S-6
Orange Rust of Brambles
9/1/2006 (new)

 UK Authors: John Hartman, Chris Smigell
 Departments: Horticulture, Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Orange rust is a disease caused by one of two very similar fungi, Gymnoconia nitens in the Southeast, and Arthuriomyces peckianus in the Midwest. Both fungi, causing the same symptoms, may be active in Kentucky. In Kentucky, orange rust is severe on some wild and cultivated thorny blackberries. It infects black and purple raspberries and thornless blackberries somewhat, but is not known to infect red raspberries.

web only | 2 pages | 657 words | 2 downloads | PDF: 232 kb



PPFS-FR-S-1
Phomopsis Cane and Leaf Spot and Eutypa Dieback Diseases of Grape
11/1/2005 (minor revision)

 UK Authors: Paul Bachi, John Hartman
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

"Cane and leaf spot" and "Eutypa dieback" were once thought to be the same disease. However, it is now known that each is a distinct disease caused by a different fungus. Grapes grown in areas where a moist environment persists are especially vulnerable to these fungal diseases.

web only | 2 pages | 631 words | 1 download | PDF: 183 kb



PPFS-FR-S-4
Raspberry Fruit Rots
7/1/2004 (minor revision)

 UK Authors: John Hartman
 Departments: Plant Pathology
 Series: Small Fruit Disease: Plant Pathology Factsheet (PPFS-FR-S series)
 Tags: farm crops, fruits and nuts, plant diseases

Rainy summer and fall weather in Kentucky can provide ideal conditions for fruit decay diseases of raspberries. The most damaging are the fungal diseases gray mold (Botrytis cinerea) and soft rot, or leak (Rhizopus and Mucor spp.). Both diseases are favored by long periods of wet fruit and foliage, and by high humidity levels. During some parts of the season, fruit rots account for up to 50% loss of potential harvest, and additional losses after harvest.

web only | 2 pages | 446 words | 2 downloads | PDF: 181 kb