%0 Journal Article
%T Effects of plant latex based anti-termite formulations on Indian white termite <i>Odontotermes obesus</i> (Isoptera: Odontotermitidae) in sub-tropical high infestation areas
%A Ravi Kant Upadhyay
%J Open Journal of Animal Sciences
%P 281-294
%@ 2161-7627
%D 2013
%I Scientific Research Publishing
%R 10.4236/ojas.2013.34042
%X <span style=\"color:windowtext;font-size:10pt;\"><span style=\"font-family:Verdana;\">In the present investigation various bioassays were conducted to evaluate the anti-termite efficacy of plant latex based formulations to control population of Indian white termite in subtropical soil. Results reveal that crude latex, its fractions and combinatorial fractions have shown very high toxicity against </span><i><span style=\"font-family:Verdana;\">O. obesus. </span></i><span style=\"font-family:Verdana;\">The LD</span></span><span style=\"font-family:Verdana;color:windowtext;font-size:6.5pt;\">50 </span><span style=\"color:windowtext;font-size:10pt;\"><span style=\"font-family:Verdana;\">values for different latex fractions of 24 h were in a range of 5.0-17.613 ¦Ìg/mg while combined mixtures of </span><i><span style=\"font-family:Verdana;\">Calotropis procera </span></i><span style=\"font-family:Verdana;\">have shown synergistic activity against termites and caused comparably high mortality with LD</span></span><span style=\"font-family:Verdana;color:windowtext;font-size:6.5pt;\">50 </span><span style=\"color:windowtext;font-size:10pt;\"><span style=\"font-family:Verdana;\">1.987-6.016 ¦Ìg/mg. The mortality rate was found dose and time dependent as it was found to be increased with an increase in dose and exposure period. In olfactometry tests, </span><i><span style=\"font-family:Verdana;\">C</span></i><span style=\"font-family:Verdana;\">. </span><i><span style=\"font-family:Verdana;\">procera </span></i><span style=\"font-family:Verdana;\">latex solvent fractions have shown significant repellency at a very low dose 0.010-0.320 ¦Ìg/mg. Interestingly, solvent fractions have significantly repelled large numbers of worker termites due to volatile action of active components of latex and different additives. ED</span></span><span style=\"font-family:Verdana;color:windowtext;font-size:6.5pt;\">50 </span><span style=\"font-family:Verdana;color:windowtext;font-size:10pt;\">values obtained in crude latex were 0.121 ¦Ìg/mg body weights while combinatorial formulations have shown ED</span><span style=\"font-family:Verdana;color:windowtext;font-size:6.5pt;\">50 </span><span style=\"color:windowtext;font-size:10pt;\"><span style=\"font-family:Verdana;\">in between 0.015-0.036 ¦Ìg/mg. Statistical analysis of repelled and un-repelled termites gave a low Chi-square value (</span><i><span style=\"font-family:Verdana;\">X</span></i></span><span style=\"font-family:Verdana;color:windowtext;font-size:6.5pt;\">2 </span><span style=\"color:windowtext;font-size:10pt;\"><span
%K &lt
%K i&gt
%K Calotropis procera
%K Odontotermes obesus
%K &lt
%K /i&gt
%K Plant Latex
%K Toxic Effects
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=37983