First record for the fungus Fusarium proliferatum (Matsush.)Nirenberg on Date palm in Babylon governorate

	First record for the fungus Fusarium proliferatum (Matsush.)Nirenberg on Date palm in Babylon governorate
journal of kerbala university
Article 1, Volume 6, Issue 1, 2010, Pages 98-102 PDF (0 K)
Abstract
This study was carried out to detect the pathogen of Date palm decline and death phenomenon in the Jerfalsaker ,Al-mesaeb and Al-hashimea in the Babylon governorate which showed symptoms similar to that caused by the fungus Fusarium oxysporium the cause of wilt disease . Results of isolation and identification showed the existence of a single fungus in all the samples which is Fusarium proliferatum and this regard the first record of the species in Date palm in Iraq .Culture characteristic of the fungus revealed abundant floccose aerial mycelium ,initially is white but become purple –violet with age : Sporodochia present as discrete entities or nearly confluent over portions of the colony , the fungal morphology characterized by forming Macroconidia with curved apical cell and have 3-5 transverse septa, the Microconidia formed on the mycelium with 0-septate and found in chains or aggregates in false heads with a few Microconidia .Results of the pathogenicity test showed that the three isolates were pathogenic for the Date palm , they revealed 60-70 % disease severity in 60 days old Date palm seedlings compared with 0% in the control treatment. Results of treatment of the three isolates showed that two isolates F.p3 and F.p2 gave the highest disease severity in the 50,75, and 100% filtrate concentration ,the disease severity in their treatments was 60,73.3 and 93.3% for the two isolates respectively compared with the 0% in the control treatment.

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