摘要
Objective:To observe the effect of two common organic acids on the larvae of Aedes aegypti (Ae.aegypti)(L),the natural vector of dengue fever/dengue hemorrhage fever,chikugunya and allergic skin reaction especially in children.Methods:Two common organic acids(lactic acid and orthophosporic acid of gradually increasing concentration) were used against laboratory reared third instars larvae of Ae.aegypti in order to observe the rate of mortality after 8.16 and 24 h of post exposure respectively in laboratory.Results:Larval mortality rates recorded were in the following sequences:orthophosphoric acid and lactic acid at 1:1 combination 】orthophosphoric acid】lactic acid.Conclusions:These two organic acids may be used perfectly in combination (1:1) along with other conventional vector control methods to reduce the Ae.aegypti population, especially in those areas where surveillance and supervisory mechanism are poor or insufficient.
Objective:To observe the effect of two common organic acids on the larvae of Aedes aegypti (Ae.aegypti)(L),the natural vector of dengue fever/dengue hemorrhage fever,chikugunya and allergic skin reaction especially in children.Methods:Two common organic acids(lactic acid and orthophosporic acid of gradually increasing concentration) were used against laboratory reared third instars larvae of Ae.aegypti in order to observe the rate of mortality after 8.16 and 24 h of post exposure respectively in laboratory.Results:Larval mortality rates recorded were in the following sequences:orthophosphoric acid and lactic acid at 1:1 combination >orthophosphoric acid>lactic acid.Conclusions:These two organic acids may be used perfectly in combination (1:1) along with other conventional vector control methods to reduce the Ae.aegypti population, especially in those areas where surveillance and supervisory mechanism are poor or insufficient.
基金
the financial support provided by The University of Burdwan,India
