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Evaluation of mosquito larvicidal activity of Azolla pinnata leaf extracts against the filarial vector Culex quinquefasciatus

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Title Evaluation of mosquito larvicidal activity of Azolla pinnata leaf extracts against the filarial vector Culex quinquefasciatus
 
Creator Bhattacharjee, Indranil
Mandal, Biplab
Chakravorty, Partha Pratim
 
Subject Azolla pinnata
Culex quinquefasciatus
Larvicide
Leaf extract
Non-target organisms
 
Description 52-59
Vector control is a major challenge now-a-days when they became resistance against commonly available insecticides.
As an alternative, preliminary laboratory evaluation of Azolla pinnata crude and chloroform: methanol solvent extract was
carried out under laboratory trials for control of Culex quinquefasciatus. Crude and solvent extract (chloroform: methanol)
extracts of A. pinnata leaves were examined for the larvicidal activity against all the larval instars (1st to 4th) of
C. quinquefasciatus. Dose-dependent mortality assays were performed using the extracts. Further, determinations of LC50
and LC95 values were accomplished through log-probit analyses and regression analyses. The larvicidal activity was
statistically justified through ANOVA analyses. Effects of the extracts were examined on non-target water fauna. Exposure
to A. pinnata crude and chloroform: methanol extract increased the mortality of first to fourth-instar C. quinquefasciatus. All
the graded concentrations showed significant (P
 
Date 2022-05-12T09:02:59Z
2022-05-12T09:02:59Z
2022-03
 
Type Article
 
Identifier 0976-0512 (Online); 0976-0504 (Print)
http://nopr.niscair.res.in/handle/123456789/59697
 
Language en
 
Relation Int. cl. (2021.01)-A61K 36/00, A61K 36/11, A61K 127/00, A61P 33/00
 
Publisher NIScPR-CSIR, India
 
Source IJNPR Vol.13(1) [March 2022]