Effects of Selected Leaf Extracts and their Repellency Activities against Aedes Aegypti (Mosquito)

Abstract

Mosquito repellents play a crucial role in public health by protecting individuals from the bites of disease-carrying mosquitoes. This  research aims to evaluate the repellent efficacy of selected plants; Azadirachta indica, Eucalyptus citriodora and Allium sativum, against  Aedes mosquitoes. The procedure describe by were adopted to assess Repellency bioassay this involves the use of four volunteer arms  for test concentration at 2.0, 3.0 and 4.0 mg/L with control. Both the control arms and treated arms were introduced simultaneously into  the experimental cages. Results shows at 20ml serial dilution Azadirachta indica, Eucalyptus citriodora, and Allium sativum showed a very  high rate of repellency to the mosquitoes, while at 30ml Azadirachta indica and Eucalyptus citriodora were able to repel mosquitoes with  lower Repellency rate shown for Allium sativum. Also at 40ml Azadirachta indica exhibited high level of repellency when compare with  control with CPT (10, 20, 30, 40 sec) respectively. There is significant different between extracts and mosquito species repelled at P>0.05.  Thus, it can be concluded that repellency of mosquitocidal agent is effective against female Aedes mosquitoes having recorded complete  protection time.