Abstract
A THOROUGH survey of cacao disease of Venezuela has confirmed and/or ascertained an interesting situation in regard to the most dangerous, epidemic, cryptogamic diseases of New World's cacao : 'witch broom', caused by Marasmius perniciosus Stahel and 'watery pod' disease, caused by Manilla Roreri Ciferri. The situation can be better understood from the following diagram showing the relative geographical position of cacao zones in Venezuela :
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Ciferri, R., Nature, 163, 953 (1949).
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CIFERRI, R. Geographic Distribution of the Great Epidemic Cacao Diseases of Venezuela. Nature 164, 1058 (1949). https://doi.org/10.1038/1641058a0
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DOI: https://doi.org/10.1038/1641058a0
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