. An encyclopædia of gardening; . furnished a remarkable insect, which assists man in the destruction of the caterpillar, theIchneumon nuinifestator, L. {jig. 466.) ITie insects of this genus, Samouelle observes, lay their eggs in the bodiesof caterpillars or pupae, whichare there hatched ; the larvae,have no feet; they are softand cylindrical, and feed onthe substance of the caterpil-lar, which never turns to aperfect insect, while the larvaeof the ichneumon spin them-selves a silky web, and changeinto a jwpa incompleta, andin a few days the fly ap-pears. {Entomologists Com-j)anioii) 6^3.) An
. An encyclopædia of gardening; . furnished a remarkable insect, which assists man in the destruction of the caterpillar, theIchneumon nuinifestator, L. {jig. 466.) ITie insects of this genus, Samouelle observes, lay their eggs in the bodiesof caterpillars or pupae, whichare there hatched ; the larvae,have no feet; they are softand cylindrical, and feed onthe substance of the caterpil-lar, which never turns to aperfect insect, while the larvaeof the ichneumon spin them-selves a silky web, and changeinto a jwpa incompleta, andin a few days the fly ap-pears. {Entomologists Com-j)anioii) 6^3.) Ante, 618 PRACTICE OF GARDEJ^ING. Pakt III. 3594. Preventive device. If in a patch of ground where cabbages are to be plantedsome hemp-seed be sown all round the edge, in the spring, the strong smell which thatplant gives in vapor, will prevent the butterfly from infesting the cabbages. TheRussian peasantry, in those provinces where hemp is cultivated, have their cabbageswithin those fields, by which they are free from caterpillars. (/. Busch, in Hort. Trans^vol. iv. 569.) 3595. The principal disease to ivhich the cabbage is liable, is the clu!) in the root. Thecause is doubtful, but most probably it proceeds from the puncture of an insect indepositing Its eggs. The part swells and becomes a tubercle as large as a gooseberry,and sometimes the size of a hens egg. When it has attacked plants before transplant-ation, the root on which it appears should be cut off before planting ; in the case oftransplanted crops there is no remedy but taking up, cutting oft, and in plant
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Keywords: ., bookcentury1800, bookdecade18, booksubjectgardening, bookyear1826
