Njuguna, M., Muriuki, M. and Karenga, S. 2022. Contact toxicity of Essential Oils from Tithonia diversifolia against Aphis gosypii, Thrips tabaci and Bemisia tabaci. International Journal of Advanced Research. 5, 1 (Jan. 2022), 10-20. DOI:https://doi.org/10.37284/ijar.5.1.534.