The embodiments herein disclose a herbal oil based non-toxic insecticide composition comprises lemon grass oil, peppermint oil and liquid soap/soap solution. The herbal oil based non-toxic insecticide composition is tested on the insects/bugs. The predetermined amount of lemon grass oil is in a range of 3% v/v-45% v/v. The predetermined amount of peppermint oil is in a range of 0.05% v/v-25% v/v. The predetermined amount of liquid soap/soap solution is in a range of 0.01% v/v-20% v/v. The liquid soap/soap solution does not comprise chemical dyes, perfumes and phosphate composition. The soap solution/liquid soap is plant based and does not comprise animal derived products. The soap solution/liquid soap prevents separation of peppermint oil and lemon grass oil in the herbal oil based non-toxic insecticide composition. The bed bugs, roaches and hornets die after spraying the herbal oil based non-toxic insecticide composition.