. Fruit farming: practical and scientific, for commercial fruit growers and others. Fruit-culture. and the apple, cherry, damson, apricot, currant and gooseberry are liable to infec- tion. It also occurs on such trees as labur- num and Portugal laurel. Sometimes the scions of recently grafted apple trees show silvered leaves one year and later become normal. It is advisable therefore, in such cases, not to destroy the scions immediately; if, however, they suc- cumb, they should be removed and burnt without delay. GoosEBEEEY Mildew. Gooseberry bushes are liable to infec- tion by two powdery mil
. Fruit farming: practical and scientific, for commercial fruit growers and others. Fruit-culture. and the apple, cherry, damson, apricot, currant and gooseberry are liable to infec- tion. It also occurs on such trees as labur- num and Portugal laurel. Sometimes the scions of recently grafted apple trees show silvered leaves one year and later become normal. It is advisable therefore, in such cases, not to destroy the scions immediately; if, however, they suc- cumb, they should be removed and burnt without delay. GoosEBEEEY Mildew. Gooseberry bushes are liable to infec- tion by two powdery mildews. One of these, known as the American Gooseberry Mildew {Sphaerotheca mors-uvae), is the most troublesome fungus pest that the gooseberry grower has to contend with. It makes its appearance in spring, often. Fig. 7.—The Silver Leaf Fungus, Stereum pur- pureum, on a dead branch oi a Victoria Plum Tree. Fig. 8.—Gooseberries, showing the brown winter stage of the American Mildew. in May, and even sometimes in April, as a whitish powder on the young leaves. As the shoots elongate the mildew grows over the tips and may extend downwards along the surface of the shoots for several inches. The fungus later becomes darker in colour, and eventually forms a dense, dark-brown, felted film, covering the affected parts. When the berries are formed they too become attacked; here again the fungus is first seen as white pow- dery patches, which later become brown and felted (Fig. 8). If the berries become infected when quite small they may become completely covered with the fungus, and in consequence are prevented. 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 Hooper, Cecil H. London, The Lockwood press
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfruitculture, bookyea
