Methyl benzoate (MB) is a natural compound in many plants and shows insecticidal toxicity against various insect pests. We determined contact, fumigant, and repellent activities of MB against the sweetpotato whitefly Bemisia tabaci and the greenhouse whitefly Trialeurodes vaporariorum (Hemiptera: Aleyrodidae). Complete contact mortality was obtained by 4% MB. Contact mortality at 2% MB into eggs, 4th instar nymphs and adults were 69.4%, 91.6% and 80%, respectively. Fumigation of 2% MB killed 95% of adults. In addition, treatment of 4% MB repelled 60% adults. There was no significant different between two species. Our results suggest that MB has high potential as an natural pesticide for sustainable pest management in crop production.

• Md. Munir Mostafiz(Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea, Department of Entomology, Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh)
• MS. Fatemna Khatun(Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea, Department of Entomology, Bangabandhu sheikh Mujibur Rahman Agricultural University, Bangladesh)
• Pijush Kanti Jhan(Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea, Department of Entomology, Patuakhali Science and Technology University, Patuakhali, Bangladesh)
• Kyeong-Yeoll Lee(Department of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea)