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Fusarium wilt disease of strawbrry caused by Fusarium oxysporum f. sp. Fragariae in Iraq and its control

Kamil S Juber*, Hurria H.Al-Juboory and Saba B. Al- Juboory

Department of plant protection, college of Agriculture, University of Baghdad

Corresponding Author's Email: kamil_s_juber@yahoo.com (Kamil S juber)

Page No: 419 427

Keywords: Fusarium Wilt, Fusarium oxysporum f. sp. Fragariae, Strawberry, Disease management and Iraq

Received June 03, 2014; Revision July 17, 2014, Accepted August 15, 2014 Available Online August 21, 2014


Study was conducted to isolate, identify and test the pathogenicity of the pathogen of Strawberry wilt disease. The efficiency of Azotobacter chroococcum , Pseudomonas fluorescens , Tchigarine and PreservePro was tested for managing the disease. Results of isolation and identification revealed the presence of Fusarium oxysporum f. sp. fragariae. The frequency of occurrence ranged from 40 - 60 %. Results of pathogenicity revealed that isolated isolates of F. oxysporum f. sp. fragariae was highly pathogenic to Strawberry plants. The percentage of disease index was recorded 75.0 87.5 % in all the treated samples as compared with control treatment. The disease management potential of tested control agents i.e. Tchigarine, A. chroococcum and P. fluorescens, have shown high efficiency against F. oxysporum f. sp. Fragariae on culture media (PDA). These treatments shows a significant inhibition in the pathogen multiplication and it reach to 100 %. All the tested treatments are not only showing in-vitro efficacy but were equally affective under green house conditions. The disease severity on root systems was recorded highest in untreated check (100%), among treatments Tchigarine and A. chroococcum were showing lowest disease severity (20%). Highest fresh weighs of shoot (9.9g) and root systems (10.47g) have been reported from A. chroococcum and Tchigarine respectively. Similar types of trends were reported in case of dry shoot and root weight. This is the first report of the occurrence of Fusarium wilt caused by Fusarium oxysporum f. sp. Fragariae on strawberry plants in Iraq.

Journal of Experimental Biology and Agricultural Sciences COPYRIGHT 2014 ALL RIGHTS RESERVED