Munzer Tamouz*(1) Mahmoud Hasan(1) and Gamal Al-Ahmad(1)
(1). Plant Protection Department, Faculty of Agriculture, Tishreen University, Latakia, Syria.
(*Corresponding author: Eng. Munzer Tamouz. E-Mail: tmmouz.m@gmail.com).
Received: 24/07/2018 Accepted: 19/11/2018
Abstract
The objective of this study was to investigate the effect of the bacterial species Pseudomonas fluorescens by determining the efficacy of the water colony extract spraying in inhibiting Chocolate Spot Disease caused by Botrytis fabae on faba bean plant Vicia faba under normal infection conditions. Randomized Complete Block Design was used with three replications. The experiment included two factors the first was the sparing with colony extract, and the control which was sprayed with potato dextrose agar. The spraying was applied once before flowering, at the field of faba bean which was infected naturally in the governorate of Latakia, Syria, in spring of 2018. Results after 30 days of spraying showed good and significant efficacy of the P. fluorescens colony’s extract in inhibiting the studied disease, where the disease severity of treatment sprayed with bacterial extract 43.8% compared to 85.4% in the control, so the efficacy of the bacteria studied extract to inhibit the disease after a month of treatment reached 48.8%, and this is a good efficiency led to the completion of research to confirm the ability of using extract of Pseudomonas fluorescens colonies to suppress the chocolate spot disease.
Key words: Syria, Faba bean, Chocolate Spot Disease, Botrytis fabae, Pseudomonas fluorescens.
Full Paper in Arabic: PDF