Two indigenous aquatic weeds Lemna minor and Spirodella spp., gave promising biological control of mosquito larvae with rainbow fish on field level in Karachi, Sindh, Pakistan
2009
Tariq, R.M. (Karachi Univ. (Pakistan). M.A.H. Qadri Biological Research Centre) | Naqvi, S.N.H. (Karachi Univ. (Pakistan). Dept. of Zoology) | Zafar, S.M.N. (Karachi Univ. (Pakistan). Dept. of Zoology)
Two indigenous aquatic weeds Lemna minor (Fam: Lamnaceae) commonly called as common duckweed and Spirodella spp., commonly called as large duckweed were used for the biological control of mosquitoes with local guppy fish also called Rainbow fish Poecellia reticulata in stagnant and polluted dirty water containing commonly Culex spp., and in few cases Anopheles spp., and in very few cases the Aedes spp., where the water became clear after some time or in overhead flown water and/or in pipeline leakage water. Such type of cases has been recorded in Karachi University Campus at BRC building. The plant was used @ 1kg/100m2 and fishes @ one fish/m2 were released in experimental areas. The fishes started their work of predating the mosquito larvae just after few minutes of their release in water. The plants Lemna, Spirodella and fishes supported to each other in symbiotic condition. The plants Lemna and Spirodella covered the surface of water reducing the oviposition area for egg
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