Fungal Gummosis in Peach
Peach limb with a severe fungal gummosis infection
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peach disease management
Botryosphaeria dothidea
peach fungal gummosis (PFG)

How to Cite

Mancero-Castillo, Daniel, Ali Sarkhosh, Sara Sherman, Mercy Olmstead, Philip Harmon, and Thomas Beckman. 2018. “Fungal Gummosis in Peach: HS1265, Rev. 7/2018”. EDIS 2018 (4). Gainesville, FL.


Peach fungal gummosis (PFG) is a vascular disease that limits the growth and yield of peach orchards in the southeastern United States. This 6-page document discusses the symptoms and management of PFG. Written by Daniel Mancero-Castillo, Ali Sarkhosh, Sara Sherman, Mercy Olmstead, Philip Harmon, and Thomas Beckham and published by the UF/IFAS Horticultural Sciences Department, July 2018.
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Beckman, T. G., J. X. Chaparro, and W. B. Sherman. 2012. "'MP-29', a Clonal Interspecific Hybrid Rootstock for Peach." HortScience. 47: 128-131.

Beckman, T. G. and C. C. Reilly. 2005. "Relative susceptibility of peach cultivars to fungal gummosis (Botryosphaeria dothidea)." J. Am. Pomol. Soc. 59: 111-116.

Beckman, T. G., P. L. Pusey, and P. F. Bertrand. 2003. "Impact of Fungal Gummosis on Peach Trees." HortScience. 38: 1141-1143.

Beckman, T. G., C. C. Reilly, P. L. Pusey, and M. Hotchkiss (2011). "Progress in the Management of Peach Fungal Gummosis (Botryosphaeria dothidea) in the Southeastern US Peach Industry." J. Am. Pomol. Soc. 65: 192-200.

Brooks, F. E. and D. M. Ferrin. 1994. "Branch dieback of southern California chaparral vegetation caused by Botryosphaeria dothidea." Phytopathology. 84: 78-83.

Biggs, A. and K. O. Britton. 1988. "Presymptom Histopathology of Peach Trees Inoculated with Botryosphaeria obtusa and B. dothidea." Phytopathology. 78: 1109-1118.

Ezra, D., M. Hershcovich, and D. Shtienberg. 2017. "Insights Into the Etiology of Gummosis Syndrome of Deciduous Fruit Trees in Israel and its Impact on Tree Productivity." Plant Dis. 101: 1354-1361.

Fawcett, H. S. and O. F. Burger. 1911. "A Gum-Inducing Diplodia of Peach and Orange." Mycologia. 3: 151.

Morrison, J. C. and V. S. Polito. 1985. "Gum Duct Development in Almond Fruit, Prunus dulcis (Mill.) D. A. Webb." Botanical Gazette. 146: 15-25.

Okie, W. R. and P. L. Pusey. 1996. "USDA Peach Breeding in Georgia: Current Status and Breeding for Resistance to Botryosphaeria." Acta Hortic. 151-158.

Polashock, J and M. Kramer. 2006. "Resistance of Blueberry Cultivars to Botryosphaeria Stem Blight and Phomopsis Twig Blight." HortScience. 41: 1457-1461.

Pusey, P. L. 1989. "Availability and Dispersal of Ascospores and Conidia of Botryosphaeria in Peach Orchards." Phytopathology. 79: 635-639.

Pusey, P. L., H. Kitajima, and Y. Wu. 1995. "Fungal gummosis." Compend. stone fruit Dis. 98.

Pusey, P. L. 1986. "Symptomatic responses of peach trees to various isolates of Botryosphaeria dothidea." Plant Dis. 70: 568-572.

Pusey, P. L. 1989. "Influence of water stress on susceptibility of nonwounded peach bark to Botryosphaeria dothidea." Plant Dis. 73: 1000-1003.

Reilly, W. D. and W. R. Okie. 1982. "Distribution in the southeastern United States of peach tree fungal gummosis by Botryosphaeria dothidea." Plant Dis. 158-161.

Simas, F. et al. 2008. "Comparison of structure of gum exudate polysaccharides from the trunk and fruit of the peach tree (Prunus persica)." Carbohydr. Polym. 71: 218-228.

Weaver, D. J. A. 1974. "Gummosis Disease of Peach Trees Caused by Botryosphaeria dothidea." Phytopathology. 64: 1429-1432.

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