أول تشخيص لمسبب مرض عفن جذور أومافاليا النخيل في العراق

الملخص EN

The results of isolation and identification from leaflets and root of date palm trees infected with root rot which collected from different regions of Baghdad showed that the disease caused by the fungus Omphalia sp.

which is registered for the first time on date palm trees in Iraq.

Results of the pathogenicity tests showed the ability of the fungus to infect the leaflets and root of date palm trees and the symptoms observed after 30 days of inoculation and it showed similar symptoms to the naturally infected leaves and root.

Cultures filtrate of the fungus at the concentration of 25,50,75,and 100% revealed complete death to the detached ieaves.The high concentration (50,75,and 100%)gave complete death to the detached leaves after 3 days of inoculation ,while it required 10 days in 25%concentration.