Investigation on Effect of Populus alba Stands Distance on Density of Pests and Their Natural Enemies Population under Poplar/Alfalfa Agroforestry System

Z.H. Khabir, S.E. Sadeghi, S. Hanifeh and A. Eivazi

Pakistan Journal of Biological Sciences 12 ( 2 ): 192 - 194 , 2009