. Il libro del giardino. Il giardinaggio. Piante ACETARIACEOUS.-La lattuga. 157 i loro meriti liave, tuttavia, attratto poco a- funzione in Gran Bretagna. I francesi dichiarano di avere parecchi tipi nel seme-negozi, che essi ritengono adatti allo scopo di crescere e di essere giovani, come facciamo la senape e il crescione. Questi chiamano Laitue chicoree, Laitue h oou- per, Laitue epinard. Qualsiasi tipo di montante o cos varietà farà altrettanto bene. Le malattie e gli insetti.-tra questi ultimi sono la lattuga-fly {Anthomyia laetucm Bouch.), il larvte di cui, secondo Euricola, in " dei giardinieri di cronaca,&q

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. The book of the garden. Gardening. ACETARIACEOUS PLANTS.—THE LETTUCE. 157 Their merits liave, however, attracted little at- tention in Britain. The French profess to have several kinds in the seed-shops, which they consider adapted to the purpose of growing to be out young, as we do mustard and cress. These they call Laitue chicoree, Laitue h oou- per, Laitue epinard. Any sort of the upright or cos varieties will do equally well. Diseases and insects.—Among the latter are the lettuce-fly {Anthomyia laetucm Bouch.), the larvte of which, according to Euricola, in " Gardeners' Chronicle, " make their appearance in August, but more abundantly in September. They are not very readily distinguished from those of the cabbage and turnip, being of a yellowish-white colour, tapering towards the head, which is pointed, and armed with two short black claws at the nose. These maggots live in the involucra of different varieties of lettuce, feeding upon the seed and receptacle ; and when they have de- voured these, they push themselves out back- wards, either to enter another seed-vessel, or fall to the ground to become pupae. When the seed stems are gathered and dying, the larvK change to pupae, being bright chestnut coloured; oval cases, which are rough when examined under a lens, with two minute tubercles at the head, and two hooks and a few other tubercles at the tail. In May a few of the pupse hatch, although they are sometimes found as early as April and as late as July. The male fly is intense black, clothed with short hairs and bristles; the eyes reddish brown, and meeting above; face inclining to chestnut colour, with a bright spot of the same on the crown; the fore part of the trunk bears four varying whitish stripes; the body is ashy grey ; the segments blackish, at the base a deep black ; wings, two, stained with black and beautifully irridescent; the base and poisers ochreous; the nervures of the vrings pitchy. The female is entirely ashy grey, and less

Parole chiave associate all'immagine

• bookcentury1800
• bookdecade1850
• booksubjectgardening
• bookyear18