Larvicidal effect of some natural products on mosquito and some aquatic predators in Gezira State, Sudan: Field assessment

Abdelmonem Eltiyab Houmida Ali Abdelmonem Eltiyab Houmida Ali,Mutaman Ali A Kehail Mutaman Ali A Kehail

doi:10.30574/ijsra.2021.3.2.0134

Abdelmonem Eltiyab Houmida Ali Abdelmonem Eltiyab Houmida Ali, Mutaman Ali A Kehail Mutaman Ali A Kehail

Open Access

https://doi.org/10.30574/ijsra.2021.3.2.0134

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Abstract

There are many methods used for mosquito control. Depending on the situation, source reduction (removing stagnant water), bio-control (importing natural predators), trapping, and insecticides to kill larvae or adults may be used. Some aquatic predators were reputed as biological control agents for mosquito larvae. Hence they have to be considered when experimenting on the lethal effects of any material on mosquito larvae. The objectives of this study were to study the effects of neem leaves and usher latex against Anopheles and Culex larvae and some of their aquatic predators (hemipteran boatman (HB), tadpole (T), swimming beetle larvae (SBL) and adult (SBA) and mayfly naiad (MF)) in some breeding sites around Wad Medani Town. Gezira State, Sudan. Two villages were selected for conducting this study. The count of the mosquito larvae and the aquatic predators continued for four days from applying natural products. The results showed that, mosquito’s larvae were affected more than the aquatic by Neem leaves and Ushar latex. The study of the microclimates in the breeding sites will help to correlate toxicity to any level of any environmental factor.

Highlights

Mosquitoes are small insects belong to the family Culicidae; order Diptera
This study aims to evaluate the effects ofneem (A. indica) leaves and usher (C. procera) latex against mosquito’s (Anopheles and Culex) larvae and some of their aquatic predators in some breeding sites around Wad Medani City (Karkoug and Barakat villages), Gezira State, Sudan
The breeding sites of Barakat and Karkoug villages were selected for testing the potentiality of the some natural products and sampling mosquitoes (Anopheles and Culex) larvae and aquatic predators

Summary

Introduction

Mosquitoes are small insects belong to the family Culicidae; order Diptera. Mosquitoes have one pair of wings, three pairs of long hair-like legs, slender segmented body, feathery antennae, and elongated mouthparts (called a proboscis) that can pierce the skin of a host and feed on blood. Mosquitoes go through four stages in their life cycle: egg, larva, pupa, and adult or imago [1]. The first three stages are aquatic and last for 5–14 days, depending on the species and the ambient temperature. Mosquito species feeds on the blood of various hosts, including most vertebrates and some invertebrates, primarily other arthropods [2, 3]

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