Tiger nut (Cyperus esculentus) as a potential phytoinsecticide: larvicidal activity of crude extracts on Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae)

2021 ◽  
Vol 38 (2) ◽  
pp. 186-191
Author(s):  
Avicor S.W.
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Culex Quinquefasciatus ◽  
Cyperus Esculentus ◽  
Crude Extracts

Larvicidal activity of some Euphorbiaceae plant extracts against Aedes aegypti and Culex quinquefasciatus (Diptera: Culicidae)

2007 ◽  
Vol 102 (5) ◽  
pp. 867-873 ◽  
Author(s):  
A. Abdul Rahuman ◽  
Geetha Gopalakrishnan ◽  
P. Venkatesan ◽  
Kannappan Geetha
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Plant Extracts ◽  
Culex Quinquefasciatus

scholarly journals Larvicidal Activity of Elytraria acaulis against Culex quinquefasciatus and Aedes aegypti (Diptera: Culicidae)

2020 ◽  
Author(s):  
Soorya Sukumaran ◽  
Rajan Maheswaran
Keyword(s):  
Aedes Aegypti ◽  
Larvicidal Activity ◽  
Culex Quinquefasciatus ◽  
Probit Analysis ◽  
Human Beings ◽  
Vector Borne Diseases ◽  
Blood Sucking ◽  
Leaf Powder ◽  
Vector Borne ◽  
Chemical Pesticides

Background: Mosquitoes are blood sucking arthropods and serve as vectors of many diseases causing serious health problems to human beings. Culex quinquefasciatus and Aedes aegypti were responsible for Filariasis and Dengue. Syn­thetic pesticides were effective against mosquitoes as well as main sources of environmental pollution and most of them are immunosuppressant. Botanicals were widely used as insecticides, growth disruptors, repellents, etc. The aim of this research was to determine larvicidal properties of powdered leaf, Elytraria acaulis against late third or early fourth in­star larvae of Cx. quinquefasciatus and Ae. aegypti. Methods: Larvae of Cx. quinquefasciatus and Ae. aegypti were tested at various concentrations of 100, 120, 140, 160, 180 and 200mg/100ml and mortality was recorded after 24h. The LC50 values of the E. acaulis leaf powder were calcu­lated by Probit analysis. Results: The plant powder exhibited strong larvicidal activity against Cx. quinquefasciatus with LC50 value of 116.07mg/100ml against Ae. aegypti 124.25mg/100ml respectively. The result indicated that the plant powder of E. acaulis showed potential larvicidal activity against Cx. quinquefasciatus and Ae. aegypti. Conclusion: The overall findings of the present investigation suggested that the E. acaulis highly effective against Cx. quinquefasciatus and Ae. aegypti larvae. Elytraria acaulis may be used as an alternative to synthetic chemical pesticides for control of vectors to reduce vector borne diseases and did not harm to total environment.

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