Word: pathogenicity
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Dates: during 1971-1971
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...blight (Helminthosporium maydis), though not yet so severe as last year's attack, has now spread on its wind-borne spores to 31 states. Flourishing in warm, wet weather, the pathogen reduces the size of kernels, weakens the stalks and rots the ears. Because farmers have enough feed grain to last for nearly a year, however, the blight probably will not noticeably affect the price of such foods as meat, milk, cheese and poultry...