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Onion diseases and Onion seed production

Onion diseases and Onion seed production

Louisiana Agric. Exper. Stat, Bull. 182, 20

Onion diseases, especially black stalk rot (Macrosporium parasiticum), have been very prevalent for some years in the Bayou Lafourche region, the most important onion-growing district of Louisiana. Almost every year the seed crop has been reduced at a moderate estimate by at least 50 per cent., chiefly from M. parasiticum, while considerable damage is done to the bulb crop by various diseases. The seed almost exclusively used is a local variety known as the Creole onion.

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