. Fig. i2,.—Sphaerella tabijica, causing heart-rot of orange-globe mangold. Conidial form. Perithecia subglobose, conidia elliptical, hyaline, 5-7 x 35 f, escaping as a gelatinous tendril. As the disease appears somewhat late in the season, it is advisable to lift the crop when it is first observed, before the fungus passes from the leaves into the root. Diseased ' tops' should be collected and buried. It is important not to include diseased roots when storing, and if diseased roots are found when the pits are opened they should not be thrown on the manure heap or into the pig-stye, but buried
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. Fig. i2, .—Sphaerella tabijica, causing heart-rot of orange-globe mangold. Conidial form. Perithecia subglobose, conidia elliptical, hyaline, 5-7 x 35 f, escaping as a gelatinous tendril. As the disease appears somewhat late in the season, it is advisable to lift the crop when it is first observed, before the fungus passes from the leaves into the root. Diseased ' tops' should be collected and buried. It is important not to include diseased roots when storing, and if diseased roots are found when the pits are opened they should not be thrown on the manure heap or into the pig-stye, but buried, otherwise the disease will find its way back to the land. Frank, Zeitschr. Ziic/ierr., 1892, p. 904. M'N'eeney, /ourtt. Roy. Agric. Soc, Ser. 3, 6, pt. 3 (1895). Prillieux, Malad. des Plantes Agric, 2, p. 263 (1897).