Ethrel
Latex is obtained from
the bark of the rubber tree by tapping. Tapping is a
process of wounding during which thin shavins of the
bark are removed to induce flow of latex.
A higher intensity of tapping
often leads to brown bast, physiological disorder. However
on older trees, intensive tappings are practised. Synthetic
hormones are also used to stimulate yield. A new yield
stimulant "Ethrel"
when applied almost doubles the yield of rubber.
Ropa Corp. is the only
supplier of Ethrel to West Africa. Ropa Copr. is determined
to see to it that the needs of the rubber industry are
met.
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