Plant Pathology, Disease Control of Fruit and Vegetables

Tomato Spotted Wilt Virus on Peanuts

In the last decade, tomato spotted wilt virus (TSWV) has become widely distributed across Alabama on many field, vegetable, and floral crops. About 300 plant species, mainly broadleafs, are hosts of TSWV. In addition to peanut, other important crops grown in the Southeast that are susceptible to...
Austin Hagan
Ron Weeks
Alabama Cooperative Extension System

Antifungal activity and ultrastructural alterations in Pseudocercospora griseola treated with essential oils

  Pseudocercospora griseola, the etiologic agent of angular leaf spot of common bean (Phaseolus vulgaris), is an important disease in all bean-producing regions worldwide and may cause extremely high yield losses. The control of this disease is made more difficult by the pathogen’s...
Julián Mauricio Ágredo Hoyos
Eduardo Alves
Luciane Cristina Rozwalka
Elaine Aparecida de Souza
Walmes Marques Zeviani
Ciência e Agrotecnologia

Resistance of several strawberry cultivars against three different pathogens

In addition to the agronomical characteristics of strawberries (Fragaria ×ananassa Duch.), strawberry breeding programs should take into account its resistance to pathogens. The main goal of this study was to evaluate the resistance of strawberry cultivars against crown and root rot caused...
R. M. Pérez-Jiménez
A. De Cal
P. Melgarejo
J. Cubero
C. Soria
T. Zea-Bonilla
I. Larena
Spanish Journal of Agricultural Research

Pseudomonas syringae pv. actinidiae on surfaces in the orchard

A kiwifruit orchard that had tested positive for virulent Pseudomonas syringae pv. actinidiae (Psa-V) ca 2 km from the incursion detected in November 2010 was sampled on 13 December 2011, when the weather was overcast with some showers. Surfaces on people (hands, soles of footwear, clothing),...
K.R. Everett
I.P.S. Pushparajah
M.J. Vergara
New Zealand Plant Protection Society

Florida Plant Disease Management Guide: Eggplant

Specific Common Diseases: Bacterial Wilt (Ralstonia solanacearum) Damping-Off (Fusarium spp., Pythium spp., Rhizoctonia solani) Early Blight (Alternaria solani) Phomopsis Blight (Phomopsis vexans) Phytophthora Blight (Phytophthora nicotianae and other Phytophthora spp.) Pythium...
Shouan Zhang
Ken Pernezny
Aaron Palmateer
University of Florida, IFAS

Guidelines for Developing an Effective Fungicide Spray Program for Wine Grapes in Maryland

The purpose of this fact sheet is to help wine grape growers in Maryland develop effective fungicide spray programs to manage a complex of five major fungal diseases affecting vines and fruit: powdery mildew, downy mildew, black rot, Botrytis bunch rot, and Phomopsis cane and leaf spot. The spray...
Anne DeMarsay
University of Maryland

Florida Plant Disease Management Guide: Crucifers

Specific Common Diseases Alternaria Leaf Spot (Alternaria brassicicola, Alternaria brassicae, and A. raphani) Anthracnose (Colletotrichum higginsianum ) Bacterial Leaf Spot (Pseudomonas cichorii) Black Rot (Xanthomonas campestris pv. campestris) Black Speck (unknown cause)...
Tim Momol
Richard Raid
Tom Kucharek
University of Florida, IFAS

Florida Plant Disease Management Guide: Celery

Specific Common Diseases: Bacterial Blight and Brown Stem (Pseudomonas cichorii) Cucumber Mosaic (Cucumber mosaic virus) Damping-off (Rhizoctonia spp., Pythium spp., Fusarium spp., and Sclerotinia spp.) Early Blight (Cercospora apii) Late Blight (Septoria apiicola) Pink Rot (...
Richard Raid
Tom Kucharek
University of Florida, IFAS

Florida Plant Disease Management Guide: Carrot (Daucus carota)

Specific Common Diseases: Alternaria Leaf Spot (Alternaria dauci) Bacterial Blight (Xanthomonas campestris pv. carotae) Cavity Spot: (Pythium spp.) Cercospora Leaf Spot (Cercospora carotae) Damping-Off (Rhizoctonia spp., Pythium spp., Sclerotium rolfsii, Fusarium spp., and...
R. N. Raid
University of Florida, IFAS

Damping-off and Root Rot of Beans

Root rots, damping-off before and after seedling emergence, and seed rots are destructive diseases of green, snap, lima, and dry beans. These diseases are caused primarily by soilborne fungi. Significant losses may occur to susceptible varieties, especially if cool, wet weather conditions prevail...
Sally A. Miller
Richard M. Riedel
Randall C. Rowe
The Ohio State University