Abstract
Myiasis is a kind of parasitic disease originating from the invasion of tissues of domestic animals by dipteran larvae. Chrysomya albicebs is a type of screwworm fly spread in the tropical areas and known to cause myiasis among live human and animals leading to health problems and high economic losses to dairy producers. Management and control of this pest is needed to overcome these losses. Nowadays, natural botanical products have been increasingly investigated as controlling agents against insects of medical and veterinary importance. This research was designed to evaluate the larvicidal effect of the total extracts of three plants, Ficus palmate, Juniperus procera and Nerium oleander against screwworm fly Chrysomya albiceps. The plants leaves were extracted with organic solvents mixture methanol : chloroform (1:1) and were tested against the second larval instar of C. albiceps using feeding and dipping methods. The extracts caused larval mortalities in the order of F. palmate> N. oleander > J. procer with IC50 values of 15.97, 33.73 and 37.24, respectively using feeding method and in the order N. oleander > F. palmate > J. procera with IC50 values of 43.12, 47.41 and 73.39, respectively using dipping method. It is concluded that the F. palmate followed by N. oleander and J. procera are candidates to use in controlling the larvae of myiasis-caused fly C. albiceps.
Highlights
Myiasis is a kind of parasitic disease originating from the invasion of tissues of domestic animals by dipteran larvae
Chrysomya albicebs is a type of screwworm fly spread in the tropical areas and known to cause myiasis among live human and animals leading to health problems and high economic losses to dairy producers
It is concluded that the F. palmate followed by N. oleander and J. procera are candidates to use in controlling the larvae of myiasis-caused fly C. albiceps
Summary
Myiasis is a kind of parasitic disease originating from the invasion of tissues of domestic animals by dipteran larvae. Chrysomya albicebs is a type of screwworm fly spread in the tropical areas and known to cause myiasis among live human and animals leading to health problems and high economic losses to dairy producers. The worldwide dominant fly species Chrysomya bezziana and Chrysomya albiceps cause cutaneous myiasis These flies are mechanically transmit myiasis and pathogens for animal[4,5] as well as this fly reported that cause myiasis infection among humans live in developing countries[6]. Myiasis is common parasitic disease that infect animals and causes economic losses in livestock production worldwide[13]. Before the control plan of myiasis-caused screwworm fly, the economic loss in the USA was estimated to be 140 million US dollars per year in livestock industry[14]. This study aimed to test the larvicidal effect of three botanical extracts against screwworm fly Chrysomya albiceps using feeding and dipping methods under laboratory conditions
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