Fungicide Sprays Affect Leaf Condition and Tree Appearance of Southern Magnolia
Reference Type
Journal, Research (Article)
Journal, Research (Article)
"Several fungicides and chemical combinations were sprayed on southern magnolia trees to improve leaf condition and tree appearance. Leaf spot and leaf scorch symptoms, induced by the fungus Glomerella cingulata, were reduced significantly by sprays with benomyl, chlorothalonil, propiconazole, myclobutanil, or copper hydroxide. Addition of a non-ionic surfactant in sprays resulted in phytotoxicity, visible as a ring spot or faded brown patch on leaves. Tank mixing of copper hydroxide with other fungicides also increased phytotoxicity and did not improve disease control or leaf condition. Benomyl and propiconazole treatments were among the best in improving overall tree appearance."
Authors
W.D. Goff, R.L. Shumack, K.M. Tilt, A.K. Hagan
W.D. Goff, R.L. Shumack, K.M. Tilt, A.K. Hagan
Date Published
2004
2004
Journal/Conference
Journal of Arboriculture
Journal of Arboriculture
Publisher
International Society of Arboriculture
International Society of Arboriculture
Publisher Location
Champaign, IL (US)
Champaign, IL (US)
ISBN/ISSN
0278-5226
0278-5226
Volume/Issue/Number
22//5
22//5
Sub-Topics
Aesthetics, Diagnosis and Treatment, Disease
Aesthetics, Diagnosis and Treatment, Disease
Keywords
Appearance, Leaf scorch, Leaf spot, Phytotoxicity
Appearance, Leaf scorch, Leaf spot, Phytotoxicity
