West Indian Bulletin; The Journal of the Imperial Agricultural Department for the West Indies Volume 3-4

West Indian Bulletin; The Journal of the Imperial Agricultural Department for the West Indies Volume 3-4

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ...the roots of which may serve to divide the attention of the grubs. In this connexion it may be noted that orange scale insects are not likely to prove seriously troublesome, for in the moister regions at least they are quickly destroyed by fungoid parasites. The orange rust mite occurs on the island, but it only seems troublesome on certain wet heavy soils. CACAO STEM CANKER. This trouble was only observed in the neighbourhood of Port Maria, but it probably occurs in other parts of the island. Slightly swollen areas occur on the trunk or larger branches. The tissues in the central part of the swellings soon die and the yellow perithecia of some Nectriaceous fungus develop on the bark. The swelling continues to grow at the margin till finally it often girdles and kills the tree. Keeping the trunks and larger branches painted or sprayed with Bordeaux mixture should be a complete protection from this disease. It would also destroy moss and lichens and keep the trunks in a clean healthy condition. Promptly cutting out the diseased areas and painting the cut surfaces with sulphate of copper or sulphate of iron.solution and then coating with tar or paint would probably in most cases save trees that are already attacked. Cacao Pod Rot. Examples of rotting cacao pods were seen at various places. Apparently more than one species of fungus is concerned in this rotting. This point will be reported on later. This rotting is not attracting much attention, but with the Creola variety at low altitudes it is certainly very serious and under certain conditions it is liable to prove destructive to other kinds. Whether or not the blasting of the young pods is due to the growth of a fungus could not be certainly determined. This blasting occasions a very...show more

Product details

  • Paperback | 336 pages
  • 189 x 246 x 18mm | 599g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236560191
  • 9781236560193