Some diseases of the cowpea . Fig. 1.—Plants of Iron Cowpea, October 26, Fig. 2.—Iron Cowpea vs. Black and Taylor, showing comparative Resistance to the Wilt and Root Knot. Jul. 17, Bureau of Plant Industry, U. S. Dept. of Agriculture. Plate IV.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagricul, bookyear1902