Fungal pathogens associated with crown and collar rot of apple trees in southern Syria

Crown and collar rot of apple trees is a destructive and widespread disease in most areas of the world. Surveys have been done to describe disease symptoms, estimate the disease incidence, and identify the pathogens associated with this disease in southern Syria. Disease incidence was 0.08 – 10 % in...

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Main Authors: Walid Ghazi Naffaa, Abeer Rashid
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2017-01-01
Series:Acta Agriculturae Slovenica
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Online Access:https://journals.uni-lj.si/aas/article/view/12708
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author Walid Ghazi Naffaa
Abeer Rashid
author_facet Walid Ghazi Naffaa
Abeer Rashid
author_sort Walid Ghazi Naffaa
collection DOAJ
description Crown and collar rot of apple trees is a destructive and widespread disease in most areas of the world. Surveys have been done to describe disease symptoms, estimate the disease incidence, and identify the pathogens associated with this disease in southern Syria. Disease incidence was 0.08 – 10 % in most studied sites, only in Alroom location it was up to 14.7 % in 2014 and 17.8 % in 2015, with average of 11.8 %. Symptoms included small pale green leaves, sparse foliage, and a reddish-brown discoloration of inner bark of the infected area at the base of infected tree. The isolated fungi belonged to genera and form genera Phytophthora, Rosellinia, Rhizoctonia, Phialophora, Acremonium, Pestalotiopsis, Cylindrocarpon and Verticillium. Phytophthora was isolated from all infected trees, and was the most frequent pathogen (53.7 % of total isolates). Phytophthora isolates recovered from crown cankers of apple were identified as P. cactorum (91.5 %) and P. cambivora (8.5 %). The results of this study are the first report of crown and collar root rot of apple in Syria.
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spelling doaj-art-589003a758134ea3a2d3e0e4632a81212025-08-20T03:02:26ZengUniversity of Ljubljana Press (Založba Univerze v Ljubljani)Acta Agriculturae Slovenica1854-19412017-01-01109110310910.14720/aas.2017.109.1.1019100Fungal pathogens associated with crown and collar rot of apple trees in southern SyriaWalid Ghazi Naffaa0Abeer Rashid1Damascus University, SyriaMinistry of agriculture, SyriaCrown and collar rot of apple trees is a destructive and widespread disease in most areas of the world. Surveys have been done to describe disease symptoms, estimate the disease incidence, and identify the pathogens associated with this disease in southern Syria. Disease incidence was 0.08 – 10 % in most studied sites, only in Alroom location it was up to 14.7 % in 2014 and 17.8 % in 2015, with average of 11.8 %. Symptoms included small pale green leaves, sparse foliage, and a reddish-brown discoloration of inner bark of the infected area at the base of infected tree. The isolated fungi belonged to genera and form genera Phytophthora, Rosellinia, Rhizoctonia, Phialophora, Acremonium, Pestalotiopsis, Cylindrocarpon and Verticillium. Phytophthora was isolated from all infected trees, and was the most frequent pathogen (53.7 % of total isolates). Phytophthora isolates recovered from crown cankers of apple were identified as P. cactorum (91.5 %) and P. cambivora (8.5 %). The results of this study are the first report of crown and collar root rot of apple in Syria.https://journals.uni-lj.si/aas/article/view/12708crown and collar rotapple treeassociated fungiphytophthorasyria
spellingShingle Walid Ghazi Naffaa
Abeer Rashid
Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
Acta Agriculturae Slovenica
crown and collar rot
apple tree
associated fungi
phytophthora
syria
title Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
title_full Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
title_fullStr Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
title_full_unstemmed Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
title_short Fungal pathogens associated with crown and collar rot of apple trees in southern Syria
title_sort fungal pathogens associated with crown and collar rot of apple trees in southern syria
topic crown and collar rot
apple tree
associated fungi
phytophthora
syria
url https://journals.uni-lj.si/aas/article/view/12708
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