Microbial Inhibition to Water Hyacinth (Eichhornia Crassipes [Martius] Solms-Laubach) in Abu Zirk Marsh by Using Selected Fungi
Abstract
Native fungi associated with water hyacinth have been identified and evaluated the potential of biological control against waterhyacinth in Abu zirk marsh (south of Iraq). Twelve species of fungi associated with different parts of the waterhyacinth (leaf, petiole) were isolated under sterile conditions in the laboratory. These fungi belong to genera Ascomycota (Alternaria alternate, Stemphyllium sp, Aspergillus niger, A.flavus, A.ostianus, A.candidus, A.fumigatus, Penicillumfumiculosum. Trichodermharzianum, T. lignorum, Basidiomycota (Rhizoctonia solani) Zygomycota(Rhizopus stolinifer) environmental parameters such as temperature, relative humidity, pwere measured in field and in laboratory, the total occurrence of fungi reached to (146 colony )A. alternata and R.solani was more frequency R.solani showed the severity of disease 91.8%, and ability to change in the wet weight, number of leaves and the height of plant. Thus, evaluated R. solani more effective and severe plant death. And can be developed as an effective biological control.
Keywords
Mycoherbicide, water hyacinth, Native bioagent, Abu zirk marsh