. Fig. 142.—Spondylocladitim atrovircns. i, po- tato showing patches of the fungus and micro- sclerotia ; 2, fruiting condition of the fungus ; 3, micro-sclerotium. 2 and 3 mag. dingy olive or brownish, up to 400 /x high; conidia elongato- ovate, apex narrowed, 5-7-septate, arranged in whorls, coloured like the stem, 30-50X6-9 \i. Potatoes bearing sclerotia or showing the sunken areas characteristic of the disease, should not be used for sets. Land that has produced a diseased crop should not be again planted with potatoes for some years. Lime or kainit would probably assist in destroying scle
. Fig. 142.—Spondylocladitim atrovircns. i, po- tato showing patches of the fungus and micro- sclerotia ; 2, fruiting condition of the fungus ; 3, micro-sclerotium. 2 and 3 mag. dingy olive or brownish, up to 400 /x high; conidia elongato- ovate, apex narrowed, 5-7-septate, arranged in whorls, coloured like the stem, 30-50X6-9 \i. Potatoes bearing sclerotia or showing the sunken areas characteristic of the disease, should not be used for sets. Land that has produced a diseased crop should not be again planted with potatoes for some years. Lime or kainit would probably assist in destroying sclerotia present in the land.
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Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
