JavaScript is disabled for your browser. Some features of this site may not work without it.
Refining and Validating a Fungicide Timing Model for Controlling Flyspeck on Apples in the Hudson Valley

Author
Rosenberger, David A.
Abstract
Flyspeck is caused by the fungus Zygophiala jamaicensis and appears during the late summer as superficial blemished on apple fruit. Development of flyspeck is favored by the hot and humid summer climate in the Hudson Valley, but this disease causes commercial losses throughout the Northeast in wet years. Inoculum for flyspeck infections on apples probably originates with host plants outside of the orchard. More than 100 plant species are hosts for this fungus. Researchers in Massachusetts have reported that disease incidence in unsprayed orchards was significantly higher in trees located within 90 meters of external inoculum sources. Disease incidence is also greater in orchards with poor air drainage because trees dry more slowly following rains and dews.
Description
NYS IPM Type: Project Report
Date Issued
1998Publisher
New York State Integrated Pest Management Program
Subject
Agricultural IPM; Fruits; Tree Fruit; Apples
Type
report