University of Khartoum

The Effects of Fungi and Insects on Ecosystem Functioning

The Effects of Fungi and Insects on Ecosystem Functioning

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Title: The Effects of Fungi and Insects on Ecosystem Functioning
Author: Ahmed, Ahmed Hashim; Safi, Ahmed Suleman; Mohamed, Elnair Akasha
Abstract: Turf grasses (Lawns) are cultivated in private and public gardens, courts, athletics and green land entertainments are gaining importance in Khartoum State. Cynodon dactylon (Bermuda species) is the most common grass species grown in the State. To study the fungus infection on these gardens, fifteen locations (gardens) were investigated and four fungi species were isolated. These fungi species included Fusarium nivale, Drechslera spicifera, Rhizoctonia solani and Curviularia lunata. Complex infection with these fungi resulted in severe blight and death of the grasses leading to desertification of the severely infection areas. The symptoms of the branch wilt disease in the susceptible tree hosts include leaf yellowing, defoliation and formation of masses of black spores under the bark and the stem and finally death of the host trees. For the economically tree species (like A. Senegal) and the biological control technique proposed by Huwida (2014) should be applied. Farmers should use electronic swards instead of axes for pruning the branches and/or stems infected trees to reduce and amount of liberating air-borne spores.
URI: http://khartoumspace.uofk.edu/123456789/27014


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