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  • Some Observations on the Breeding Habits of the Common House-FIy, Musca domestica, Linnaeus.

    Author(s) : EVANS, A. T.

    Journal article : Journal of Economic Entomology 1916 Vol.9 No.3 pp.354-362 pp.

    Abstract : Musca domestica was found to breed readily in fresh horse manure, rarely in cow manure, and in one instance only in garbage. The migration of the larvae to the outer layers of manure heaps was observed. Failure to oviposit in garbage was shown to be due to the acid nature of this substance. Manure, when tested, was found to be alkaline; samples which had been standing for 30 minutes contained 0.647 per cent. of ammonia, but this quantity decreased as the exposure became more prolonged. The percentage of acid in garbage varied, but on an average was sufficient to neutralize an equal quantity of ammonia of a strength of 0.653 per cent. Eggs and larvae were able to develop normally in manure soaked with ammonia up to a strength of 0.7 per cent., but practically no development took place in the presence of hydrochloric acid, even When very dilute. Pupae placed in earth moistened with distilled water, 0.75 per cent. acid, or 2.1 per cent. ammonia, completed their metamorphosis in a normal manner. Oviposition took place on old rags which had been previously moistened; the larvae hatching from these eggs migrated from the rags in the absence of a food supply. Attempts to induce egg-laying in manure moistened with liquid from garbage met with negative results. In all the experiments it was noted that the larvae were sensitive to excess of moisture, while in manure heaps and bins they were always present in the drier portions only. The scarcity of larvae in cow dung may be attributed to the saturated nature of this substance. Adult flies which occurred abundantly near garbage seemed to visit it for feeding purposes only.
    The larvicidal properties of hydrochloric acid at a strength of from 0.75 to 1.0 per cent. suggest its value as a spray for use against the breeding places of flies.

    ISSN : 0022-0493

    DOI : 10.1093/jee/9.3.354

    Record Number : 19161000300

    Publisher : Concord

    Language of text : not specified

    Language of summary : not specified