. Annals of applied biology. Biology, Economic; Biochemistry. 42 Investigation of Bulb Rot of Narcissus areas (Fig. 4). Owing to the large number of eelworms in such bulbs it usually happens that the disease spreads quickly, thus separating the scales from the plate; such plates bearing only roots are often found in beds in which the bulbs are very badly attacked. It seems piobable that in these cases the disease has started in the previous Fig. 5. Early growth of diseased bulb. August. General Considerations. Eelworm is well known in Europe because of the destruction it causes to vario
. Annals of applied biology. Biology, Economic; Biochemistry. 42 Investigation of Bulb Rot of Narcissus areas (Fig. 4). Owing to the large number of eelworms in such bulbs it usually happens that the disease spreads quickly, thus separating the scales from the plate; such plates bearing only roots are often found in beds in which the bulbs are very badly attacked. It seems piobable that in these cases the disease has started in the previous Fig. 5. Early growth of diseased bulb. August. General Considerations. Eelworm is well known in Europe because of the destruction it causes to various cultivated crops, especially to rye, hyacinth and onion. Kuhn(5,()) in 1867 and 1868 described a disease in rye and showed that it was due to the action of an eelworm, Anguillula devastatrix. In 1881 Prillieux(iO) investigated the "ring" disease of hyacinths and attributed it to an eelworm, Tylenchus hyacintki. Two years later the onion disease was shown by Beyerinck(i) to be due to Tylenchus Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Association of Applied Biologists; Association of Economic Biologists. [Wellesbourne, Warwick, etc. ] Association of Applied Biologists [etc. ]
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