. Citrus culture in Porto Rico / by Henry C. Henricksen. Citrus fruits Puerto Rico; Fruit-culture Puerto Rico. CITRUS CULTURE IX PORTO RICO 29 Bebudding which was done years ago has been the cause of much trouble. The large trunks were not always properly cut and the scars properly covered; as a result the trees started to rot and could be saved only by means of tree surgery. This consists in removing all dead wood and filling the cavity with some material such as Portland cement. Cement is not always satisfactory, because it usually shrinks away from the sides of the cavity. Once water gets b
. Citrus culture in Porto Rico / by Henry C. Henricksen. Citrus fruits Puerto Rico; Fruit-culture Puerto Rico. CITRUS CULTURE IX PORTO RICO 29 Bebudding which was done years ago has been the cause of much trouble. The large trunks were not always properly cut and the scars properly covered; as a result the trees started to rot and could be saved only by means of tree surgery. This consists in removing all dead wood and filling the cavity with some material such as Portland cement. Cement is not always satisfactory, because it usually shrinks away from the sides of the cavity. Once water gets between the cement and the tissue the decay proceeds more rapidly than ever. Asphalt has given better results than cement, but is satis- factory only when used by skilled workmen. The cavities may also be left open provided they are well cleaned out, waterproofed, and drained. Some growers plant three or four seedlings around an old dis- eased tree and inarch them into the trunk. By means of this treat-. Figure 16.—Tree which was planted on level ground. Crown roots are not visible and the trunk is infected with gum disease ment and the giving of proper attention to wounds, the life of the tree may be prolonged. Wounds should always be treated with Bordeaux paste, or some wood preservative that will not injure the live tissue. Of late years gas tar has been used by many growers. It is not always suitable, but the grade produced and sold in San Juan does not seem to injure the live tissue of the tree. In choosing a wound dressing it is well to keep in mind the fact that such mate- rials as Bordeaux paste and other similar antiseptics do not make the wound water and air tight. They must be followed by an appli- cation of tar, asphalt, or some other preparation that will form a perfect permanent seal. Wither tip or die-back of the small branches causes considerable loss in some of the groves. Like the various gum diseases of the trunk, wither tip is associated with fungi. Losses
Size: 1595px × 1566px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
