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島根大学農学部研究報告 Volume 5
published_at 1971-12-15
殺虫剤によるダニの防除に関する野外試験(3)
Field Studies on the Control of Ticks with Insecticides(3)
Chikaki Hideya
Uzuta Yoshihiro
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Two kinds of test were made to make sure of the effects of carbamate(2-sec-buthyl-phenyl-N-methylcarbamate) on ticks(nymph of Haemaphysalis bispinosa NEUMlMAN) which carry piroplasmosis of cattle, at Koyahara pasture in Sambe, Shimane Prefecture, in early Summer 1971.
In Test 1, three kinds of carbamate emulsion(0.1%, 0.5% and 1.0% in concentration) were applied to the skin of cattle. After 24 hours, the number of ticks on the cattle treated with carbamate grew much fewer than those on untreated cattle, but after 7 days, there was no difference in number of ticks between treated and untreated.
Test 2 was to make certain of the after-effect of carbamate. The emulsion(0.05%, 0.1% and 0.5%) was directly tested on ticks. The after-effect of it was recognized during twenty days at least after carbamate was prepared, and the mortality of ticks by carbamate was 100 per cent in this test.
In Test 1, three kinds of carbamate emulsion(0.1%, 0.5% and 1.0% in concentration) were applied to the skin of cattle. After 24 hours, the number of ticks on the cattle treated with carbamate grew much fewer than those on untreated cattle, but after 7 days, there was no difference in number of ticks between treated and untreated.
Test 2 was to make certain of the after-effect of carbamate. The emulsion(0.05%, 0.1% and 0.5%) was directly tested on ticks. The after-effect of it was recognized during twenty days at least after carbamate was prepared, and the mortality of ticks by carbamate was 100 per cent in this test.
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