Commercial Rose Culture, Under Glass and Outdoors: A Practical Guide to Modern Methods of Growing the Rose for Market Purposes

by Eber Holmes

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... good, strong, healthy plants, united to cleanliness and careful watching as to detail in cultivation. Avoid overwatering in dark weather, syringe carefully and not too often in the Winter time. Keep a little sulphur painted on the pipes all the time when firing, and dust a little dry sulphur on tlic ... Read More

This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1911 edition. Excerpt: ... good, strong, healthy plants, united to cleanliness and careful watching as to detail in cultivation. Avoid overwatering in dark weather, syringe carefully and not too often in the Winter time. Keep a little sulphur painted on the pipes all the time when firing, and dust a little dry sulphur on tlic iulmg: in Midsummer when there is no fire. Let this remain on the bushes, with one or two days of hot sun on it, before washing it off. Renew the application as soon as the bushes are dry, if necessary. When the first spots of mildew show in a house, the affected leaves should be picked off and burned. If this is persisted in for a few days the disease may be kept from spreading, if the sulphur remedy is kept up. A muggy atmosphere in a house, induced by too much damping down and too little air, will cause mildew to spread rapidly. When mildew reaches the fruiting stage, the white powder is carried by the wind and spread, or it may be carried on the clothing from one house to another. At this time it may be drowned out by continuous syringings which wash off and beat down the spores, destroying a great many of them before they can get a chance to alight on a favorable place to reproduce themselves. If mildew has been present in the Fall, all the leaves that were affected, which show signs of its presence, should be removed and destroyed, or an outbreak is certain in the Spring. When syringing to destroy mildew, always work to drive it away from (instead of on to) benches that are clean. Black spot is a disease confined to the foliage, and mostly troublesome in the Fall and Winter under glass, particularly on American Beauty and Richmond Roses. It appears in the form of black or purplish spots, sometimes almost circular and about... Read Less