D.D.T. AND EARTHWORMS
Sir, —To-day I heard Mr Doull, Lincoln College entomologist, advising farmers to broadcast D.D.T. over their paddocks to control grass grub. I would like to ask if there would be any danger of the earth worms being affected. Their value as farm workers is pretty generally recognised. As the D.D.T. lasts for three years it would appear that the worms would take into their bodies some of the poison, which would remain in the humus. — Yours, etc., N. DEANS.
Darfield, August 28, 1951. [On the “Farm and Station” page of “The Press” of July 7, the concluding sentence in an article on grass grub control says: “Neither D.D.T. nor B.H.G. at tne above dosages will adversely affect stock, earthworms, or nitrefying bacteria, nor can harmful bacteria be benefited by their use.”]
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Press, Volume LXXXVII, Issue 26515, 1 September 1951, Page 3
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134D.D.T. AND EARTHWORMS Press, Volume LXXXVII, Issue 26515, 1 September 1951, Page 3
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