. The American fruit culturist. leaf somewhat distorted at the placeof attack. The fruit is often attacked just as it is passing outof the flower stage, and may cause a dwarfing of the speci-men, and giving it a blotched and misshapen appearance (seeFig. 280). Unlike the rust, the scab fungus is not a deep feeder;but growing close beneath the skin of leaf or fruit producesvast numbers of brown spores, thus giving the dirty discolor-ation to the affected parts. The spores are disseminated bywinds and water and germinate quickly when the conditionsare favorable, all of which is a full explanatio
. The American fruit culturist. leaf somewhat distorted at the placeof attack. The fruit is often attacked just as it is passing outof the flower stage, and may cause a dwarfing of the speci-men, and giving it a blotched and misshapen appearance (seeFig. 280). Unlike the rust, the scab fungus is not a deep feeder;but growing close beneath the skin of leaf or fruit producesvast numbers of brown spores, thus giving the dirty discolor-ation to the affected parts. The spores are disseminated bywinds and water and germinate quickly when the conditionsare favorable, all of which is a full explanation of the rapiddevelopment of the scab at certain times. THE DISEASES OF FRUITS. 215 Remedies. Several of the Experiment Stations have beenmaking extensive tests of remedies for the apple scab, per-haps none more satisfactorily than the one at Geneva, NewYork. Three sprayings with the Bordeaux mixture are rec-ommended : the first between the breaking of the bud and theopening of the blossom, followed by the second shortly after. Fig. 280.—An Apple, showing the blotches and distortions produced by the Apple Scab. the petals have fallen, and the last about two weeks is seen by this that the attack of the fungus, upon the fruitat least, is chiefly while it is young. Later on the skin be-comes smooth and tough, and a foothold is not likely to beobtained. The Bordeaux mixture now generally employed, after ex-tensive experiments extending over several years, is as fol-lows : Copper sulphate (bluestone), . . 6 poundsQuicklime, . . . . 4 Water, . . . .60 gallons Slake the lime with hot water and strain through coarsecloth or sacking. Place the copper sulphate in a bag of sim-ilar material and suspend it over night near the surface of a 2l6 THE DISEASES OF FRUITS. tub or other v/ooden vessel filled with water. Hot water willgreatly hasten the solution if it is desired. In preparing thefull formula of sixty gallons, slowly pour a ten-gallon solutionof the copper sulphate into t
Size: 1539px × 1624px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectfruitculture, bookyea
