Report No. 5:PF014
Apple: Malus X domestica 'Rome Beauty'
Powdery mildew, cedar apple rust: Podosphaeria leucotricha; Gymnosporangium juniperi-virginianae

Organic and reduced risk fungicide programs for apple powdery mildew and cedar apple rust on Rome Beauty, 2010.

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First Author: Noemi Halbrendt, Penn State University

Additional Authors: H. K. Ngugi; B. Jarjour

Section: Pome Fruits


Geographical location: Pennsylvania, United States

Products Tested: Captan; Cuprofix Ultra 40 Disperss; Kocide 3000; Lime Sulfur; Luna Sensation; Manzate Pro-Stick; Microthiol Disperss; Micro Sulf; Penncozeb 75DF; Rally; Topsin M 70WP

Active chemical(s): Captan; Copper sulfate; Copper hydroxide; Calcium polysulfide; Fluopyram + trifloxystrobin; Mancozeb; Sulfur; Sulfur; Zinc manganese; Myclobutanil; Thiophanate-methyl

Biological Control: 1. Cuprofix Ultra; Copper sulfate; United Phosphorus, Inc. 2. Lime sulfur; Calcium polysulfide; Miller Chemical. 3. Microthiol Disperss; Sulfur; United Phosphorus, Inc. 4. Microsulf WP; Sulfur; Nufarm Americas

Biorational Product:

Manufacturer(s): Arysta; United Phosphorus Inc.; DuPont; Miller Chemical and Fertilizer Company; Bayer CropScience; DuPont; United Phosphorus Inc.; Nufarm Americas Inc.; United Phosphorus Inc.; Dow AgroSciences LLC; United Phosphorus Inc.

Publication date: March 28, 2011

The American Phytopathological Society