<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Deshmukh, Madhavi</style></author><author><style face="normal" font="default" size="100%">Pawar, Pushpa</style></author><author><style face="normal" font="default" size="100%">Joseph, Mary P.</style></author><author><style face="normal" font="default" size="100%">Phalgune, Usha</style></author><author><style face="normal" font="default" size="100%">Kashalkar, Rajashree</style></author><author><style face="normal" font="default" size="100%">Deshpande, Nirmala R.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Efficacy of 4-methyl-7-hydroxy coumarin derivatives against vectors aedes aegypti and culex quinquefasciatus</style></title><secondary-title><style face="normal" font="default" size="100%">Indian Journal of Experimental Biology</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">4-Methyl-7-hydroxy coumarin</style></keyword><keyword><style  face="normal" font="default" size="100%">Aedes aegypti</style></keyword><keyword><style  face="normal" font="default" size="100%">Culex quinquefasciatus</style></keyword><keyword><style  face="normal" font="default" size="100%">Larval mortality</style></keyword><keyword><style  face="normal" font="default" size="100%">Ovicidal activity</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2008</style></year><pub-dates><date><style  face="normal" font="default" size="100%">NOV</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">11</style></number><publisher><style face="normal" font="default" size="100%">NATL INST SCIENCE COMMUNICATION</style></publisher><pub-location><style face="normal" font="default" size="100%">DR K S KRISHNAN MARG, NEW DELHI 110 012, INDIA</style></pub-location><volume><style face="normal" font="default" size="100%">46</style></volume><pages><style face="normal" font="default" size="100%">788-792</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;4-Methyl-7-hydroxy coumarin is considered as a lead molecule as a biopesticide. Its mono bromo and tribromo derivatives were synthesized. Two more derivatives were synthesized by acylation. Compound 1 (3.6,8-tribromo-7-hydroxy-4-methyl-chromen-2-one) was found to be the most potent against IV(th) instar larvae of C. quinquefasciatus and A. aegypti the LC(50) being 1.49 and 2.23 ppm respectively. It showed 100% larval mortality at 25 ppm against A. aegypti and at 10 ppm against C. quinquefasciatus. Compounds 1 and 2 (3,6,8-tribromo-7-hydroxy-4-methyl-chromen-2'-oxo-2H-chromen-7-yl acetate) showed remarkable ovicidal activity. Significant reduction of 80-85%, hatching of eggs of both mosquito species was observed at the highest dose of 100 ppm. The hatched larvae showed 100% mortality in the successive instars. Compounds 3 and 4 (3-bromo-7-hydroxy-4-methyl-chromen-2-one and 3-bromo-4-methyl-2'-oxo-2H-chromen-7-yl acetate) showed moderate activity against both mosquito species.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">11</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">Indiain</style></custom3><custom4><style face="normal" font="default" size="100%">1.165</style></custom4></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Gurulingappa, Hallur</style></author><author><style face="normal" font="default" size="100%">Tare, Vrushali</style></author><author><style face="normal" font="default" size="100%">Pawar, Pushpa</style></author><author><style face="normal" font="default" size="100%">Tungikar, Vijay</style></author><author><style face="normal" font="default" size="100%">Jorapur, Yogesh R.</style></author><author><style face="normal" font="default" size="100%">Madhavi, Sriram</style></author><author><style face="normal" font="default" size="100%">Bhat, Sujata V.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Susceptibility of aedes aegypti and culex quinquefasciatus larvae to gedunin-related limonoids</style></title><secondary-title><style face="normal" font="default" size="100%">Chemistry &amp; Biodiversity</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2009</style></year><pub-dates><date><style  face="normal" font="default" size="100%">JUN</style></date></pub-dates></dates><number><style face="normal" font="default" size="100%">6</style></number><publisher><style face="normal" font="default" size="100%">WILEY-V C H VERLAG GMBH</style></publisher><pub-location><style face="normal" font="default" size="100%">PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY</style></pub-location><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">897-902</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;The major non-azadirachtin limonoids such as gedunin (1), epoxyazadiradione (3), nimbocinol (4), and nimolicinol (5) from Azadirachta indica A. Juss ('neem') and their derivatives were evaluated for their toxic action against fourth instar larvae of Aedes aegypti L. and Culex quinquefasciatus SAY. Gedunin exhibited 100% toxic action against both the mosquito larvae at 50 and 10 ppm. Epoxyazadiradione and epoxynimolicinol also showed significant toxicities (&amp;gt;= 50%) against larvae of both mosquito species at 50 ppm. These neem limonoids can have benefits in mosquito-control programs.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">6</style></issue><custom3><style face="normal" font="default" size="100%">Foreign</style></custom3><custom4><style face="normal" font="default" size="100%">1.586</style></custom4></record></records></xml>