TY - GEN AU - Howitt,A.J.,Painter,R.H. TI - Field and greenhouse studies regarding the sources and nature of resistance of sorghums, sorghum vulgare pers., to the corn leaf aphid, rhopalosiphum maidis (Fitch) PY - 1956/// CY - Manhattan KW - Greenhouse KW - Sorghums KW - Corn Leaf Aphid ER -