The House Fly and How to Suppress It by F. C. Bishopp & L. O. Howard

Author:F. C. Bishopp & L. O. Howard [Bishopp, F. C. (Fred Corry)]
Language: eng
Format: epub
Tags: Pests -- Control, Housefly
Published: 2006-03-25T16:00:00+00:00

TREATMENT WITH CALCIUM CYANAMID AND ACID PHOSPHATE.

Many experiments with mixtures of commercial fertilizers were tried to determine whether fly larvæ would be killed by any substance the addition of which would increase the fertilizing value of the manure. A mixture of calcium cyanamid and acid phosphate was found to possess considerable larvicidal action. Several experiments showed that ½ pound of calcium cyanamid plus ½ pound of acid phosphate to each bushel of manure give an apparent larvicidal action of 98 per cent. The mixture in the form of a powder was scattered evenly over the surface and then wet down with water. The use of this mixture adds to the manure two important elements, nitrogen and phosphorus.

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