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Plant pathologists believe the iisease is flaring because the fungus has developed a new and itronger race to which most com varieties are highly susceptible,” idvised Pristou. “The science of :om development will marshal its energies and resources to breed lybrids with resistance to the lew race. This will take at least :wo years,” he added. Where the old race attacked inly the com leaves, the new race it tacks the ear as well. Southern com leaf blight is not lew to Virginia. It was first noted in the early 1940’s when it reached almost epidemic proportions before com breeders developed resistant hybrids. Severity of damage to the crop seems to depend upon the time of its infection,-'. Grain ; aad farage yields could be materially reduced in fields infected early, before the plants ha<f set their ears and were still producing leaves to convert plant nutrients
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