On the effects of pyroligneous liquors on flies and slugs

Abstract

The repellency fo the commercial pyroligneous liquors was observed against the flies gathered on meat and the slugs. Also the toxicity of commercial pyroligneous liquors was examined against the slugs. The results obtained were summarized as follows. (1) Flies averted odours of neutral, basic and phenolic fractions of the pyroligneous liquor set aside fish meat. The repellency of mixture of these three fractions is more effective than each single fraction. The sun-drying fish treated with the above mixture is tested the repellency to flies. (2) The pyroligneous liquors and the liquors adjusted pH with alkaline showed both marked toxicity on the Japanese native slug, Incilaria confusa Cockerell in contact tests. Organic acid and carbonyl fractions of the above liquors showed more effective to kill slug than basic, neutral and phenolic fractions. (3) Slugs averted odours of the pyroligneous liquor.