BREEDING POPULATIONS OF CULICINES WITHIN THE PERI-DOMESTIC ENVIRONMENT OF SOME COMMUNITIES IN ANAMBRA STATE, SOUTHEAST, NIGERIA
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Abstract
A longitudinal study was carried out from September 2017 to August 2018 to investigate the breeding populations of culicines in peri-domestic environments at Okija, Ukpor and Orsumoghu communities of Anambra State. A bi-weekly mosquito larval collection was done. All water storage and discarded water-holding containers were sampled. For standardization, ten dips were made on each large container while smaller containers were pooled together to get representative samples. Disposable plastic pipettes of 1.5ml capacity were used to aspirate immature stages of mosquitoes from plant axils. Data was analyzed using SPSS version 21.0. A total of 3,225 mosquito larvae/pupae were collected during the study. Aedes albopictus 573 (17.77%), Aedes aegypti 372 (11.53 %), Aedes simpsoni 798 (24.74 %), Culex quinquefasciatus 1,374 (42.6 %), Culex tigripes, 99 (3.07 %) and Eretmapodites quinquevittatus 9 (0.28 %), emerged from the collections. A significantly higher number of larvae, 2,421 (75.07%), were collected from artificial containers than in the plant axils, 804 (24.93%) (P < 0.05). Aedes simpsoni was only recovered from the plant axils. The abundance of Culicine mosquitoes was significantly more in the rainy season than in the dry season (P < 0.05). Keeping the surroundings free from discarded water-holding containers, properly covering water storage containers and practicising subsistence agriculture for the implicated plants well away from our immediate living environment are sure ways of controlling these mosquitoes, as several of the mosquitoes collected are vectors of major public health diseases.
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