. Diseases of glasshouse plants. Greenhouse plants; Plant diseases. DISEASES DUE TO FUNGI 105 entire plant. Affected leaves turn yeUow round the diseased spots and ultimately curl and die. While few glasshouses are entirely free from rust it only becomes a serious trouble when the temperature is excessively high and the plants are over-watered. AVhen the leaves at the base of the plant are continually moist ideal condi- tions for spreading the disease are produced. Thus. FlQ. 27. (a) Ptust of the carnation, (b) iiredo-spore, (c) teleuto-apore, (d) spore mass, (e) stigmonose of the carnation. w
. Diseases of glasshouse plants. Greenhouse plants; Plant diseases. DISEASES DUE TO FUNGI 105 entire plant. Affected leaves turn yeUow round the diseased spots and ultimately curl and die. While few glasshouses are entirely free from rust it only becomes a serious trouble when the temperature is excessively high and the plants are over-watered. AVhen the leaves at the base of the plant are continually moist ideal condi- tions for spreading the disease are produced. Thus. FlQ. 27. (a) Ptust of the carnation, (b) iiredo-spore, (c) teleuto-apore, (d) spore mass, (e) stigmonose of the carnation. where rust is prevalent it is advisable to keep the lower fohage off the ground by wire netting supports, bent in the shape of an inverted V, placed between the rows. Rust is spread each year by means of cuttings taken from diseased plants, and in consequence it is necessary to propagate from healthy plants only. Sponging the leaves with a solution of potassium permanganate has been recommended as a means of checking the disease, while spraying with Uver of sulphur and flour paste solu- tion has proved useful in severe cases. Careful attention. 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 Bewley, W. F. (William Fleming). London, E. Benn
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectplantdi, bookyear1923
