10.22376/ijpbs.2019.10.1.p1-12 Volume 3 Issue 3 2012 (July - September) Field trials were laid in the farmer's holdings at Kaalipalayam, Coimbatore district during August, 2011 to November, 2011 to assess the efficacy of selected botanical insecticides against aphids, thrips, leaf miners and defoliators infesting lessThan i greaterThan Solanum nigrum lessThan /i greaterThan . The results of the experiments revealed that among the treatments, foliar spray of profenophos is found to be the best treatment for the management of sucking pests lessThan i greaterThan viz., lessThan /i greaterThan aphids and thrips as well as defoliators lessThan i greaterThan viz., lessThan /i greaterThan leaf miner and other defoliators and also recorded maximum leaf yield. Among the botanicals, 1% azadirachtin and 2 % aqueous extract of lessThan i greaterThan Andrographis paniculata lessThan /i greaterThan recorded maximum reduction in pest population and also conserved more number of natural enemies like predatory coccinellids. Regarding leaf yield, all the botanical pesticides were found to be statistically on par, while the leaf yield recorded from profenophos treated plot recorded its superiority with 21.75 kg leaf /12m lessThan sup greaterThan 2 lessThan /sup greaterThan / harvest lessThan i greaterThan . lessThan /i greaterThan M. Suganthy And P. Sakthivel Solanum nigrum, Aphis craccivora, Thrips tabaci, defoliators, botanicals 220-228