Plant Pathology, Disease Control of Fruit and Vegetables

Angular Leaf Spot of Strawberries

Angular leaf spot (ALS) is a bacterial disease caused by Xanthomonas fragariae, a pathogen highly specific to both the wild and the cultivated strawberry, Fragaria x ananassa. ALS is an important disease on winter-produced strawberries worldwide, and it is considered a quarantine disease by the...
Natalia A. Peres
University of Florida, IFAS

Manejo integrado de enfermedades de tomate en invernadero

Existen varios factores que favorecen en gran medida el desarrollo de las enfermedades en cultivos realizados bajo cubiertas protectoras: El medio ambiente modificado, que se caracteriza por condiciones de temperatura, humedad relativa, fertilización elevadas, ausencia de viento, propician...
Alicia Bruna Vásquez
INIA Chile

Pepper Diseases: A Field Guide

This field guide contains illustration and description of many of the diseases and disease-like disorders that affect pepper throughout the world. The guide is not all-inclusive, but an attempt has been made to include as many of the economically important diseases as possible. The guide is...
Lowell L. Black
Sylvia K. Green
Glen l. Hartman
Jean M. Poulos
AVRDC – The World Vegetable Center

Manual Práctico de cadena productiva del cultivo de Quinua

Contenido: Cultivo de quinua Variedades Rotación de cultivos y requerimientos Preparación del terreno y siembra Sistema de preparación del terreno Densidad de siembra Desinfección de semilla Fertilización y abonamiento...
Juan P. Silva Castañeda
Tomás Guillén Valencia
Luis F. Córdova Meza
William Salazar Carhuamaca
Efraín Sedano Fernández
Santos H. Cajahuanca Camarena
Marleni Arrieta Jerí
Cáritas Huancavelica

Workbook for Developing an Effective Fungicide Spray Program for Wine Grapes in Virginia

The purpose of this workbook is to help wine grape growers in Virginia develop an effective fungicide spray program for their production. The targeted diseases are: powdery mildew (PM), downy mildew (DM), black rot (BR), Botrytis bunch rot, and Phomopsis cane and leaf spot (Ph). Any of these...
Mizuho Nita
Virginia Tech

Late Blight: A Serious Disease of Potatoes and Tomatoes

Late blight is a plant disease that mainly attacks potatoes and tomatoes, although it can sometimes be found on other crops, weeds and ornamentals in the same botanical family (Solanaceae). Other plants that late blight may infect include petunia, nightshades, and tomatillos. Late blight was a...
Abby Seaman
Rosemary Loria
William Fry
Thomas Zitter
Cornell University Cooperative Extension

Downy mildew “look-alike” symptoms on cucumber

Photos: Angular leaf spot Anthracnose Herbicide damage Heat stress Alternaria on Cucumber Anthracnose on Cucumber (Colletotrichum orbiculare) Phytophthora capsici on Cucumber Septoria on Cantaloupe
Mary K. Hausbeck
Michigan State University

Aplicación de los Sistemas Blitecast y Tomcast en el Manejo del Tizón Tardío, Phytophthora infestans (Mont.) de Bary, en Papa (Solanum tuberosum L.) y Tomate (Lycopersicon esculentumMill.) en el Norte de Sinaloa, México

En los ciclos agrícolas 1991-92 y 1992-93 se pronosticó el primer brote del tizón tardío mediante el sistema Blitecast, a partir de tubérculos artificialmente infectados con Phytophthora infestans. Posteriormente, el sistema se validó a nivel semicomercial...
Rubén Félix Gastélum
Carlos Alberto Gálvez Figueroa
Rodolfo Trinidad Correa
Revista Mexicana de Fitopatología

Disease Management in High Tunnels

In Minnesota, high tunnel use provides a simple and effective way of protecting crops from low temperatures in both spring and fall, thereby extending our relatively short growing season for an additional one to two months. Without question, the primary benefit of using high tunnels is earliness....
Janna L. Beckerman
University of Minnesota

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