. Orchids: their culture and management. Orchids. H ORCHIDS Insect and other Pests. in colour. As the specific name suggests, it perforates the stems (Fig. 2), and, once inside, tunnels in various directions, causing the plant attacked to have an un- health)' look. The grub (Fig. 3) is white and footless. Plants exhibiting signs of decay, and \\'hose stems are found to be perforated in the \va}' shown in the portion of plant illustrated, should have such portions removed and burned. The check recei\-ed will be nothing to the damage that would ultimatel)- occur were the insects allowed free pla
. Orchids: their culture and management. Orchids. H ORCHIDS Insect and other Pests. in colour. As the specific name suggests, it perforates the stems (Fig. 2), and, once inside, tunnels in various directions, causing the plant attacked to have an un- health)' look. The grub (Fig. 3) is white and footless. Plants exhibiting signs of decay, and \\'hose stems are found to be perforated in the \va}' shown in the portion of plant illustrated, should have such portions removed and burned. The check recei\-ed will be nothing to the damage that would ultimatel)- occur were the insects allowed free play. In bad attacks Dendrobiums are some- times killed. This Beetle does not feed exclusivel}' upon. jfl' pcrmisiion of the Board of AgrUidturc. Fig. 2. Dendrobium Beetle {Xyleborusperfomns). I and 2, Beetle highly magnified ; 3, Insect, natural size ; 4, Infested stem, with hole made by Beetle. Fir,. 3. Grub of Dendrobium Beetle in Or- chid Stem. Orchids ; in the sugar-growing countries it is destructive to the canes. Outside the class lusecta we have the Woodlice, which are extremely partial to the young roots of Orchids. Like the Cockroaches they are nocturnal, and like them, too, they are best destroyed by means of phosphorus paste.' The Red Spider may be fought by fumigations of XL All insecticide, and by sponging the foliage. Slugs and Snails are at times troublesome, and especially the Garlic-scented Snail that is so commonly introduced with the sphagnum. These pests will gnaw through the flowers should they escape the vigilant ej-e of the gardener. 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 Watson, William, 1858-1925; Chapman, H. J. , ed. London, L. U. Gill; New York, C. Scribner's sons
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectorchids, bookyear1903
