. Better fruit. Fruit-culture. Spraj-ing on a steep hillside in Southern Ohio Spraying in the orchard of E. R. Pooley, at Hood River, Oregon Soulhcm |)clauai-c orcliaid, showing new type sjii ayer in foreground and an old- timer in rear, thougii still being used. coating of infected stems. Examination under a microscope shows these patches to consist of large numbers of curiously marked and spined, spherical bodies. These bodies, known technically as per- ithecia, each contain eight winter spores of the fungus. Protected under the thick coating of the perithecia, these winter spores are capabl
. Better fruit. Fruit-culture. Spraj-ing on a steep hillside in Southern Ohio Spraying in the orchard of E. R. Pooley, at Hood River, Oregon Soulhcm |)clauai-c orcliaid, showing new type sjii ayer in foreground and an old- timer in rear, thougii still being used. coating of infected stems. Examination under a microscope shows these patches to consist of large numbers of curiously marked and spined, spherical bodies. These bodies, known technically as per- ithecia, each contain eight winter spores of the fungus. Protected under the thick coating of the perithecia, these winter spores are capable consider- able exposure, and under favorable con- ditions will germinate in the spring. Of the two methods of wintering over, the one first described is apparently of most importance to the fungus under the climatic conditions of California, but in either case the process depends upon the mildewed twigs of the last season. During the winter these mildewed twigs are often very conspicuous, especially when the sunlight strikes them at the proper angle. Under proper conditions of illumination the whitened tips may be visible for several hundred feet. Mildews, like other fungus diseases, are dependent upon certain conditions of heat and moisture for their development, but in general are less affected by sea- sonal variations in. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hood River, Or. , Better fruit publishing company
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Keywords: ., bo, bookcontributorthelibraryofcongress, booksubjectfruitculture
