Hebbalkar, D SHebbalkar, G DSharma, R NJoshi, V SBhat, V S1992-07-012009-05-271992-07-012009-05-271992-07-01Hebbalkar DS, Hebbalkar GD, Sharma RN, Joshi VS, Bhat VS. Mosquito repellent activity of oils from Vitex negundo Linn. leaves. Indian Journal of Medical Research. 1992 Jul; 95(): 200-3http://imsear.searo.who.int/handle/123456789/19350Oil obtained from stream distillate of V. negundo leaves was fractionated by column chromatography. Mosquito repellence activity, as evaluated against Aedes aegypti was mainly confined to the most polar fractions. The protection period against mosquito bites by polar fractions ranged between 1-3 h. However, the mean protection period values of these fractions did not show significant increase in the subsequent subfractions.engAedesAnimalsFemaleHumansInsect Bites and Stings --prevention & controlInsect RepellentsMalePlant ExtractsPlant OilsJournal Article