. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . opjust beneath the skin ofthe leaf or fruit, but, as arule, do not penetratedeeply into the the fungus hasgrown in this way forsome time it pushes out-ward, rupturing the skin ;and on the exposed sur-face short vertical brownthreads ai^e developed, onthe tips of which thesmall oval spores are pro-duced (Fig. 14). Whenmature the spores sepa-rate, and are scattered by wind and rain in all directions. Treatment.—In spring, just before the leaf-
. Fungi and fungicides; a practical manual, concerning the fungous diseases of cultivated plants and the means of preventing their ravages . opjust beneath the skin ofthe leaf or fruit, but, as arule, do not penetratedeeply into the the fungus hasgrown in this way forsome time it pushes out-ward, rupturing the skin ;and on the exposed sur-face short vertical brownthreads ai^e developed, onthe tips of which thesmall oval spores are pro-duced (Fig. 14). Whenmature the spores sepa-rate, and are scattered by wind and rain in all directions. Treatment.—In spring, just before the leaf-budsopen, spray thoroughly with dilute Bordeaux mixture,or else sjiray before the leaf-buds begin to swell, with asimple solution of copper sulphate; repeat the applica-tion of Bordeaux mixture a little later, just before theblossoms open ; spray for tlie third time just after theblossoms have fallen, adding arsenites for the codlingmoth if desired; ten da3^s after this third applicationspray again with the combination of Bordeaux mixtureand Paris green or London purple. Do not aj^ply Bor-deaux mixture late to early ripening FIG. 13. SCABBY APPLE SHOWINGRUPTUKES IX THE SKIN. 30 FUiTGI AKD rCKGICIDES Literature.—Articles concerning apple scab maybe found in the following publications : Bulletin OhioExperiment Station, IV, No. 9; Report JJ. S. , 1887, pp. 341-347 ; First Eeport WisconsinExperiment Station, 1884, pp. 45-56; Cornell Univer-sity Experiment Station, Bulletin 48. The Powdery Mildew Podosphcera oxyacanthce About midsummer one may often find on the leayesand young shoots of apple, cherry, quince, j^each, and
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectpathoge, bookyear1896
