. Fii;. 41. — Plasmopara pygmaea on Anemone nemorosa. Conidiophores emerging from a stoma. Intercellular mycelium with haustoria. (v. Tubeuf del.) berries are well formed, and the sprayings are repeated every twelve to fifteen days, or oftener if there are heavy rains, till the grapes begin to colour. It must, however, be remembered that sprayings of this kind do not reach the mycelium inside the leaf, but only act superficiall}^ killing any developing conidiophores or conidia which may alight on the leaf. These fungicides are, at the same time, remedies for powdery mildew (Uncinula). " S
. Fii;. 41. — Plasmopara pygmaea on Anemone nemorosa. Conidiophores emerging from a stoma. Intercellular mycelium with haustoria. (v. Tubeuf del.) berries are well formed, and the sprayings are repeated every twelve to fifteen days, or oftener if there are heavy rains, till the grapes begin to colour. It must, however, be remembered that sprayings of this kind do not reach the mycelium inside the leaf, but only act superficiall}^ killing any developing conidiophores or conidia which may alight on the leaf. These fungicides are, at the same time, remedies for powdery mildew (Uncinula). " Sulphuring" as a remedy for this aiid the powdery mildew has been recommended by continental writers.^ The burning of all diseased vine-leaves is strongly recommended. Attention also sliould be given to the cultivation of disease-proof varieties.^ PI. pygmaea (Uiiger). On Rauuiiculaceae (Britain and Anuiiica). PI. pusilla (De Bary). On Geraniums. Uialloway, "Fungous diseases of the grape and their treatment," Dept. ofA</ric., farnierr Bulletin, No. 4, 1881. -Oesterr. Weinhaukongress, 1891. Reported in Oed. laudwirth. WochenhlaU, X., 1881. •'MiUardet (see Chap, vi.)
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