. Mon jardin, son plan et la culture en collaboration avec une description générale de sa géologie, de la botanique, et l'histoire naturelle. Le jardinage. 478 mon jardin. dont la cochenille insecte, le coccus qui vit sur les cactus, est un exemple. Les coques sont surtout les fléaux de serres, et si on les laisse se multiplier feront rapidement détruire une précieuse collection. Ces créatures, comme les aphides ou usine-poux, ont une tribune par laquelle ils percent la cuticule de la plante,et sucer son jus. Il existe de nombreuses espèces, mais tous sont tout aussi destructeurs. La vigne est parfois attaquée par la vigne Cochenille {

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. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. 478 MY GARDEN. of which the Cochineal insect, the coccus which lives on the cactus, is an example. Cocci are especially the plagues of greenhouses, and if allowed to multiply will speedily destroy a valuable collection. These creatures, like the aphides or plant-lice, have a rostrum by means of which they pierce the, cuticle of the plant and suck its juices. There are many species, but all are equally destructive. The vine is sometimes attacked by the Vine Scale Insect {Coccus vitis, fig. 1054a). The orange is pretty constantly attacked by the C. hesperidum: in fact, it requires continual care to keep this tree from their ravages. The pine-apple is attacked by the C. BromelicB (fig. o^b The Mealy Bug {C. adonidum, fig. 1055) is very troublesome in the hot-house. There is a group of these creatures which live under a shield, as the Aspidiotus nerii, or Oleander Scale Insect. In the year 1871, some of the lemons imported to London were spotted over with green, as though. Fig. 1054a.âCoccus Fig. 1054*.âCoccus vitis. Bromeliae. Fig. 1055.âCoccus adonidum, nat. size and magnified. Fig. 1056.âLemon coccus, magnified. at certain parts they had not thoroughly â ripened: in the centre of each of these spots there was a white covering, under which a coccus (fig. 1056) resided. The lemons attacked were bitter and unfit for use. The best plan to destroy cocci is to wash the plant. Of late years a formidable creature, allied to the aphis and coccus, called the Phylloxera, has attacked the vine. It commenced in America, passed to Ireland, has visited the neighbourhood of London, and threatens most extensive damage in France. It has two formsâone which lives on the leaves and stems, and another which lives on the roots (plate 24, figs. 1â7.) Up to this time I have not seen this pest.. Please note that these images are extracted from scanned page im

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