PROTECTION OF GRAIN
NEW DUST DISCOVERED COMBATING WEEVIL 111 a.m.) LONDON. Jan. 3. Dr. J. A. Kitchener, a scientist in the Department of Physical Chemistry at tlie Imperial College of Science and Technology. London, lias discovered a method bv which the world's grain may be protected from the ravages of weevil. Dr. Kitchener, who, early in 1940. began experiments on different dusts, found one which makes insects die from lack of water. The method is not new. The Egyptians used silica dust 4000 years ago. but it was injurious to tlie grain. Dr. Kitchener has discovered a form of non-poisonous alumina, only 21b. of which is needed per ton of grain. Large-scale utilisation of tlie process is awaiting adequate quantities of alumina at a com-
nercial price.
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Bibliographic details
Gisborne Herald, Volume LXXII, Issue 21603, 4 January 1945, Page 6
Word Count
127PROTECTION OF GRAIN Gisborne Herald, Volume LXXII, Issue 21603, 4 January 1945, Page 6
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