島根大学農学部
ISSN:0370-940X
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島根大学農学部研究報告 2
1968-12-15 発行
昆虫不妊剤のイエバエに対する野外試験(2)
Field Experiment on the Control of House Fly with the Chemosterilant(2)
近木 英哉
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内容記述（抄録等）
Experiments were made to examine the effect of HEMPA in field on house-flies (Musca domestica). Experiments were carried out at three sections in Amamura of Oki Islands from July 19 to November 1, 1967.
HEMPA-baits were renewed once a week for 49 consecutive days by so called bait-stationing method. Used bait contained 49 % sugar, 30 % skim milk, 20% honey and 1 % HEMPA by weight.
By application of HEMPA-baits, house-fly population was reduced from 5.4 per tape per day to 1.4 at Hinotsu and from 6.4 to 2.7 at Saitoji within 15 days. Even after the application wan discontinued, house-fly population remained at the reduced level until the end of experiment (Nov. 1)
In Toyota, however, it increased from 3.8 to 4.4, probably because this section was not so well isolated as the other two.
In Nakazato and Higashi as the control, it increased from 4.1 to 4.8.
HEMPA-baits were renewed once a week for 49 consecutive days by so called bait-stationing method. Used bait contained 49 % sugar, 30 % skim milk, 20% honey and 1 % HEMPA by weight.
By application of HEMPA-baits, house-fly population was reduced from 5.4 per tape per day to 1.4 at Hinotsu and from 6.4 to 2.7 at Saitoji within 15 days. Even after the application wan discontinued, house-fly population remained at the reduced level until the end of experiment (Nov. 1)
In Toyota, however, it increased from 3.8 to 4.4, probably because this section was not so well isolated as the other two.
In Nakazato and Higashi as the control, it increased from 4.1 to 4.8.
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