Fig rust, fruit symptoms
Pustules of fig rust on the lower leaf surface
Cercospora leaf spot (Cercospora fici) Heald & F.A. Wolf Symptoms on Ficus carica
Caused by Cerotelium fici
The most common disease of fig in the southeastern United States is the fig rust (Cerotelium fici). Fig rust turn leaves brown, can cause defoliation and premature ripening of the fruit, and decreases cold tolerance. This disease can be controlled by a 5-5-50 Bordeaux spray (copper sulfate, lime and water) applied every two to three weeks. 1
Fig. 3. Rust of fig leaves in Hawaii (Manoa valley, island of Oahu) caused by the plant-pathogenic fungus, Cerotelium fici
Fig. 4,5. Fig rust. Pathogen: Cerotelium fici
Fig Rust in Hawai'i from the University of Hawai'i at Manoa pdf 5 pages
Cercospora leaf spot (Fig. 6)
Caused by Cercospora fici
Cercospora leaf spot fungus (Cercospora fici), causes branch terminals to turn black and die. 1
Fig. 7. Symptoms on leaf
Fig. 8. Symptoms on fruit
Cercospora Leaf Spot of Fig from the Florida Department of Agriculture & Consumer Services pdf
Other fig diseases include Botrytis cinerea (fungus) and Cercospora leaf spot fungus (Cercospora fici), which causes branch terminals to turn black and die. Thread blight (Pellicularia koleroga) results in necrosis of stems and matted foliage. Botryosphaeria dothidea (fungus) causes necrosis of leaves and stems. Rhyzopus stolonifer (smut) causes fruit drop of cultivars with an open eye. Fusarium spp. and Aspergillus niger are fungus that attack ripe fruit. 1
1 Andersen, Peter C. and Crocker, Timothy E. "The Fig". edis.ifas.ufl.edu. This document is HS27, one of a series of the Horticultural Sciences Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. Original publication date Mar. 1994. Revised Nov. 2009 and June 2016 Web. 4 Mar. 2017.
Fig. 1,3,4,5 Nelson, Scot, C. Rust of fig leaves in Hawaii (Manoa valley, island of Oahu) caused by the plant-pathogenic fungus, Cerotelium fici. 2012. flickr.com. Under (CC BY-SA 2.0). Web. 5 Mar. 2017.
Fig. 2 Ferrin, Don. Pustules of fig rust on the lower leaf surface. 2012. Louisiana State University Agricultural Center. bugwood.org. Under (CC BY 3.0 US). Web. 5 Mar. 2017.
Fig. 6,7,8 Hamann, Jonas Janner. Cercospora leaf spot (Cercospora fici) Heald & F.A. Wolf. 2012. Universidade Federal de Santa Maria. bugwood.org. Under (CC BY 3.0 US). Updated 2016.Web. 5 Mar. 2017.
Published 5 Mar. 2017 LR