The Cultivation of Silkworms; A Guide to Their Rational Treatment, with Notes on Every Species Grown in Ceylon

The Cultivation of Silkworms; A Guide to Their Rational Treatment, with Notes on Every Species Grown in Ceylon

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...years would be still better. The manuring of the trees, advocated by many writers, is not only unnecessary but injurious to the worms, as it produces leaf of inferior quality as regards silk production. Pruning, too, for the same reason, must be done lightly, only double branches, injured stems and cross-growing branches being removed to keep the trees in good shape. Beyond this and the forking of the soil three or four feet away from the stem no cultivation is necessary; the forking should be done either justafter the dry weather (in April or May), or in September or October. Experiments made many years ago proved that the feeding of the worms on leaf gathered from young trees, and from older trees heavily pruned and manured, not only resulted in their spinning worthless cocoons, but a large proportion of them died a week before they should have spun. If on sloping ground, the nursery-beds should be laid out ob1iquely, 'not straight up and down the slope. This will prevent 'wash' from heavy rams; the beds will retain moisture much longer, and less watering will be required. As it is by no means unlikely that with the extension of cultivation 'some insect or fungoid pest will develop on the mulberry, efforts should be made to discover some other plants which might be used as substitutes for it. Attempts have frequently been made in England whenever mulberry leaves have been unprocurable, to feed silkworms on other leaves, such as lettuce and currant, but the results have invariably been disappointing. It must, however, be remembered that' the silkworms bred in Great Britain have generally been of very degenerate stock, and that in almost every instance they have been handicapped by misguided methods of...
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Product details

  • Paperback | 28 pages
  • 189 x 246 x 2mm | 68g
  • United States
  • English
  • black & white illustrations
  • 1236941187
  • 9781236941183
  • 2,431,981