Plant Pathology, Disease Control of Fruit and Vegetables

2012 Southeastern Peach, Nectarine and Plum Pest Management and Culture Guide

This guide is to be used only by commercial growers. Pest problems vary across the Southeast. This guide covers multiple states and production areas. Pesticide rates are a guideline. Contents: Effectiveness of disease control materials Peach insecticide and miticide classes, human...
Dan L. Horton
Phillip M. Brannen
University of Georgia

Downy Mildew Look-Alikes

Picture of symptoms similar to Downy Mildew in cucumber and squash.
Mary K. Hausbeck
Michigan State University

Downy Mildew Symptoms

Pictures of Downy Mildew symptoms in cucumber
Mary K. Hausbeck
Michigan State University

Concentrated, low-volume aerial sprays to improve spray distribution in large avocado trees

The avocado industry has comprehensive guidelines for ground-based spray application to avocado orchards, but there are no current guidelines for aerial spray applications. Helicopter-applied deposits from a dilute spray application (600 litres/ha) of copper on a commercial Hass avocado orchard (...
R.E. Gaskin
K.D. Steele
G.S. Elliott
New Zealand Plant Protection

Tomato Diseases: Fusarium Wilt (Fusarium oxysporum f.sp. lycopersici)

First symptoms are yellowing of the foliage, beginning with the lower leaves and working upward. Yellowing often begins on one side of the vine. Infected leaves later show downward curling, followed by browning and drying. The top of the vine wilts during the day and recovers at night, but wilting...
Ray Cerkauskas
AVRDC - The World Vegetable Center

Florida Plant Disease Management Guide: Apple (Malus domestica)

Content: Apple Scab Bitter Rot Black Rot Botryosphaeria Rot/White Rot Cercospora Leaf Spot Crown Gall Fabrea Leaf Spot Fire Blight Fly Speck Mushroom Root Rot Pink Limb Blight Powdery Mildew Rust Sooty Blotch Southern Blight
Mathews L. Paret
Tim Momol
Laura Ritchie
Hank Dankers
University of Florida IFAS Extension

Production of ancho chili graft on criollo de morelos 334 for the control of Phytophthora capsici

Phytophthora capsici is an oomycete that causes losses in the production of chili peppers (Capsicum annuum L.) worldwide. There are currently no varieties of chilies resistant to this pathogen and the chemical products used for its control promotes the development of resistent strains and...
Ma. Rocío García-Rodríguez
Elizabeth Chiquito-Almanza
P. Damián Loeza-Lara
Heriberto Godoy-Hernández
Emiliano Villordo-Pineda
J. Luis Pons-Hernández M.
Martín González-Chavira
J. Luis Anaya-López
Agrociencia

Producción de chile ancho injertado sobre criollo de morelos 334 para el control de Phytophthora capsici

Phytophthora capsici es un oomiceto que ocasiona pérdi­das en la producción de chile (Capsicum annuum L.) en el mundo. Actualmente no hay variedades comerciales de chile resistentes a este patógeno y los productos químicos usados para su control promueven el...
Ma. Rocío García-Rodríguez
Elizabeth Chiquito-Almanza
P. Damián Loeza-Lara
Heriberto Godoy-Hernández
Emiliano Villordo-Pineda
J. Luis Pons-Hernández M.
Martín González-Chavira
J. Luis Anaya-López
Agrociencia

Tomato Diseases: Early Blight (Alternaria solani)

The leaves, stems and fruit on the vine may be affected. Symptoms on leaves are most likely to appear on the older foliage. Small dark spots enlarge into circular lesions consisting of concentric rings. The tissue surrounding the lesions becomes yellow and the spots later become irregular in shape...
Ray Cerkauskas
AVRDC – The World Vegetable Center

Monitoring and Managing Cucurbit Downy Mildew

Historically, Michigan growers produce over 342,000 tons of cucurbits valued at about $99 million on 49,000 acres. Michigan is the number 1 producer of pickling cucumbers and fresh market/processing squash, number 3 producer of fresh market cucumbers, and number 6 producer of pumpkins in the...
Mary K. Hausbeck
Brian Cortright
Jarrod Morrice
Michigan State University Extension