. Agricultural botany, theoretical and practical. Botany, Economic; Botany. 752 FUNGI being at the same time forcibly ejected into the air and carried to the young bines and leaves growing near the ground. AVe thus see why it is that 'hop-mould generally commences close to the ground and spreads upwards, and why there are ' mouldy places' in gardens where the disease begins almost every year. Prevention and Remedy.—(a) Although the complete de- struction of ' hop-mould' is unattainable, every effort should be made to diminish its prevalence by burning all badly affected bines and leaves. This
. Agricultural botany, theoretical and practical. Botany, Economic; Botany. 752 FUNGI being at the same time forcibly ejected into the air and carried to the young bines and leaves growing near the ground. AVe thus see why it is that 'hop-mould generally commences close to the ground and spreads upwards, and why there are ' mouldy places' in gardens where the disease begins almost every year. Prevention and Remedy.—(a) Although the complete de- struction of ' hop-mould' is unattainable, every effort should be made to diminish its prevalence by burning all badly affected bines and leaves. This practice should especially be carried out. Fig. 255.—A, Perithecia (/) with appendages (//) of hop-mould (enlarged 12 diameters). ^, A single perithecium which has been burst; a ascus; j ascospores (enlarged 80 diameters;. C, A single free ascus (a) with ascospores (s) within (enL-u-ged go diameters). in cases after a bad attack where the hops have been not worth picking on account of ' mouldiness.' The bines should on no account be left lying about, as the spore cases are produced in thousands and fall upon the ground only to remain a certain source of infection for succeeding years. The application of gypsum to the soil is said to be beneficial in such circumstances, but no trustworthy experiments upon. 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 Percival, John, 1863-1949. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1910
