. The book of the garden. Gardening. much to be dreaded as the two first. Indeed, the aphides, thrip, and red-spider only appear upon them when something is wrong in the art of culture. Excessive heats, droughts, &c., are the cause, the appearance of the insects the effect. Not so with the two former, and espe- cially as regards the cockroach, for every addi- tional plant added to the collection may carry with it, if not the perfect insect, its eggs ; and this is very much the case when orchids are imported, it not unfrequently happening that whole cases of these plants are entirely devour
. The book of the garden. Gardening. much to be dreaded as the two first. Indeed, the aphides, thrip, and red-spider only appear upon them when something is wrong in the art of culture. Excessive heats, droughts, &c., are the cause, the appearance of the insects the effect. Not so with the two former, and espe- cially as regards the cockroach, for every addi- tional plant added to the collection may carry with it, if not the perfect insect, its eggs ; and this is very much the case when orchids are imported, it not unfrequently happening that whole cases of these plants are entirely devour- ed by these insects during their passage home. On the arrival of plants from abroad, the utmost vigUance should be exercised in searching for such dangerous enemies. We, in general, after examining the plants of orchids carefully, and after removing all dead or decaying matter attached to them, plunge them two or three times in water heated to 100°, and afterwards wash them thoroughly in tepid water, using a brush for the removal of their eggs, which water at any temperature less than would destroy the plant would not effect. Cases of imported plants should never be unpacked in or near any of the hothouses, but in some place distant from them in winter, and in summer the operation may be carried on even at a dis- tance from the garden. Amongst traps, we have used common hyacinth glasses, half-filled with sugar and water, or any sweet mucilage, a little of it being smeared round the mouth of the glass, set amongst the plants, but placing a narrow slip of wood as a bridge between the plants and the bottle. The cockroaches or beetles, attracted by the sweetness, fall into the water. Poison is also resorted to, and a mixture of lard, honey, and arsenic is formed into paste, and small pieces of it laid about on the shelving Fig. Thb Cockrcvch. Male and Female. or other parts of the house. Bell-glasses in- verted, plunged in sand to the rim, and half. Please note that these
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectgardening, bookyear18
