. Fig. 24—Boil smut of corn. (Courtesy of the Illinois Agricultural Experiment Station; from Bui. 511.) in late-maturing corn, in seasons of early rain, or in fields heavily irri- gated late in the season. Any of several fungi may be responsible, espe- cially Diplodia zeae and Fusarium moniliforme. Early-maturing varieties are advisable in places where ear mold is likely to occur. Overirrigation should be avoided; harvesting and curing done as early as possible. Seed corn is best selected in the field, only sound ears being used; and it should be stored in a dry place. Each ear should be teste
. Fig. 24—Boil smut of corn. (Courtesy of the Illinois Agricultural Experiment Station; from Bui. 511.) in late-maturing corn, in seasons of early rain, or in fields heavily irri- gated late in the season. Any of several fungi may be responsible, espe- cially Diplodia zeae and Fusarium moniliforme. Early-maturing varieties are advisable in places where ear mold is likely to occur. Overirrigation should be avoided; harvesting and curing done as early as possible. Seed corn is best selected in the field, only sound ears being used; and it should be stored in a dry place. Each ear should be tested by germinating several kernels and all ears not showing good germination rejected. When the disease is very troublesome, seed may be treated with one of the mercury dusts like Semesan Jr., or Merko, with good results. Old debris of the preceding crop in the field should be burned or plowed under. Head Smut.—See "Smut" (p. 40).
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