N. Adgaba1*, A. A. Al-Ghamdi1, A. Getachew1, Y. Tadesse1, A. Almaktary1, M. J. Ansari1, M. Al-Madani2 and D. Sharma1
1Eng. Abdullah Baqshan Chair for Bee Research, Department of Plant Protection, Faculty of Food and Agricultural Science, King Saud University, P.O. Box 2460 Riyadh 11451, Saudi Arabia.
2Northern Highlands Regional Research Station, Agricultural Research & Extension Authority, Sa`adah, P.O Box 90225, Republic of Yemen