The biology and control of the sorghum midge Walter, E.V. creator text xx Washington, D.C USDA 1941 monographic und
print
27 by E.V. Walter Encuadernado con: Orhard insects of the pacific northwest and their control / by E.J. Newcomer Contarina sorghicola Sorgo enfermedades Sorgo plagas PA-C 634 N4 1933 Technical bulletin; 778 200801 220125 Para_2218