02739nas a2200241   4500008004100000022001400041245012800055210006900183260010200252300001400354490000700368520179400375653001802169653003402187653001402221653002902235100002002264700002802284700002202312700001802334700001902352856012602371       2010                        eng d  a0011-389100aEffect of sub-lethal concentrations of insect growth regulator, lufenuron on larval growth and development of Aedes aegypti0 aEffect of sublethal concentrations of insect growth regulator lu  aC V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIAbINDIAN ACAD SCIENCEScNOV  a1256-12590 v993 a<p>The effect of sub-lethal concentrations (LC20 = 0.0002 and 0.001 ppm, and LC40 = 0.002 and 0.02 ppm for II and IV instar larvae respectively) of a dispersible concentrate formulation of the insect growth regulator, lufenuron on larval growth and development of Aedes aegypti was studied. When II and IV instar larvae were subjected to the above-mentioned sub-lethal concentrations of lufenuron through the culture medium, there was a significant increase in the time taken for pupation (17.2 +/- 0.74 and 11.4 +/- 0.8 days for II and IV instar LC20-treated larvae respectively, and 19 +/- 0.89 and 14.6 +/- 1.0 days for II and IV instar LC40-treated larvae respectively). Also, there was increase in the time taken for adult emergence 3.8 +/- 0.83 and 5.4 +/- 0.83 days from pupation of LC40-treated II and IV instar larvae respectively). There was 28.1 +/- 2.06% and 43.59 +/- 0.87% reduction in pupation in LC20 of lufenuron-treated II and IV instar A. aegypti larvae respectively. Also, with LC20 of lufenuron-treated II and IV instar larvae there was 43.54 +/- 5.12% and 43.59 +/- 0.87% reduction in adult emergence respectively. Further, it was observed that II instar larvae treated with LC20 of lufenuron developed into 25.8 +/- 2.08% deformed adults. In LC40-treated II instar larvae there was 33.72 +/- 2.38% reduction in pupation and 63.44 +/- 4.76% reduction in adult emergence. Also, it was observed that there was 54.84 +/- 3.9% and 61.3 +/- 5.2% reduction in pupation and adult emergence respectively, in IV instar larvae treated with LC40 of lufenuron. The reduction in pupation of the IV instar larvae treated with LC40 of lufenuron was due to failure of the larvae to undergo pupation. These studies are fundamental to the use of lufenuron in A. aegypti management.</p>10aAedes aegypti10alarval growth and development10alufenuron10asub-lethal concentration1 aSalokhe, S., G.1 aMukherjee, Samindra, N.1 aDeshpande, S., G.1 aGhule, V., P.1 aMathad, J., R.  uhttps://library.ncl.res.in/content/effect-sub-lethal-concentrations-insect-growth-regulator-lufenuron-larval-growth-and-0