na INLIS000000000019962 Ind 0010-1218001800 Index of plant disease in the United States AMERIKA SERIKAT. DEPARTMENT OF AGRICULTURE Crops Research Division Agricultural Research Service Washington D.C. United States Department of Agriculture 1960 ii, 531 p. ii, 531 p. ills. 581.2(73)(083.86) PLANT DISEASES UNITED STATES 3476/84