. Insetti e Malattie delle piante : contenente rimedi e suggerimenti consigliati per l'adozione da parte degli agricoltori, frutta-dei coltivatori e giardinieri della provincia . Parassiti; le malattie fungine di piante; pesti di insetto. APPLP: ticchiolatura o macchia nera del frutto (Fusidadium dendriticum). Segnalato da tutte le parti della Provincia Inferiore, causando una grande perdita per la frutta-produttori rendendo il frutto inutile o non commerciabili. Vi è probabilmente non fungous malattia della frutta così familiare come la crosta di Apple o macchia nera della frutta. Il fungo che produce il ben noto macchie nere o croste sul frutto di attacchi anche le foglie

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. Insect pests and plant diseases : containing remedies and suggestions recommended for adoption by farmers, fruit-growers, and gardeners of the province . Pests; Fungal diseases of plants; Insect pests. APPLP: scab or black spot of the fruit (Fusidadium dendriticum). Reported from all parts of the Lower Province, causing great loss to fruit-growers by rendering the fruit useless or unsaleable. There is probably no fungous disease of fruit so familiar as the apple scab or black spot of the fruit. The fungus which produces the well-known black spots or scabs on the fruit also attacks the leaves and young shoots. It first appears on the leaves in Apple scab. the shape of smoky, greenish spots, more or less circular in outline. These gradually enlarge and run together, so as to form good sized blotches; as they grow older the colour darkens, finally becoming almost black. The young fruit is attacked almost as soon as formed, and sometimes shrivels up and drops off. The spores or reproductive bodies of the fungus are produced in immense numbers on the blackened spots on the leaf and fruit, forming most abundantly during cool, wet weather. They are disseminated by the wind, etc., and when they light upon a moist leaf or fruit they germinate, sending out a little tube or root, and thus form a new centre of disease. The spores pass the winter on the bark, twigs, and stored fruit, as well as on the fallen leaves and fruit. The mycelium or vegetative portion of the scab fungus develops just beneath the skin of the leaf or fruit, but as a rule does not penetrate deeply into the tissues. After a while it pushes outwards, rupturing the skin and developing fresh spores.. 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 work.. British Columbia. Provincial Board of Horticulture. Victoria, B. C. : Dept. of Agriculture

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1890
• booksubjectinsectpests
• bookyear