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Fundamental experiments to establish control of Chironomidae (Diptera) in advanced wastewater tanks of sophisticated sewage-treatment systems : Effect of ultrasonic shock on mortality rate of <i>Chironomus yoshimatsui</i> larvae, pupae, and egg mass
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- HIRABAYASHI Kimio
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University
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- TAKEDA Masaaki
- Department of Applied Biology, Faculty of Textile Science and Technology, Shinshu University
Bibliographic Information
- Other Title
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- 下水高度処理水貯槽内におけるユスリカ類の防除方法確立のための基礎実験―超音波刺激がセスジユスリカ幼虫・蛹・卵塊の死亡率に及ぼす影響―
- ゲスイ コウド ショリスイチョソウ ナイ ニ オケル ユスリカルイ ノ ボウジョ ホウホウ カクリツ ノ タメ ノ キソ ジッケン チョウオンパ シゲキ ガ セスジユスリカ ヨウチュウ サナギ ランカイ ノ シボウリツ ニ オヨボス エイキョウ
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Description
To establish a new method for physically controlling chironomid larvae, pupae and egg mass, we delivered an ultrasonic shock under laboratory conditions and calculated the mortality. Our findings were as follows. (1) When chironomid larvae are given an ultrasonic shock at 28 kHz for more than 15 seconds, the mortality ratio is approximately 90%. (2) When chironomid larvae are given an ultrasonic shock at 45 kHz for more than 30 seconds, a mortality ratio is approximately 90%. (3) At 100 kHz, the chironomid larval mortality rate is low under almost all experiment conditions, and an ultrasonic shock almost no effect. (4) Pupae tend to exhibit a higher mortality rate than chironomid larvae at 100 kHz. (5) When the ultrasonic shock lasts 5 seconds, the mortality rate is high, similar to those at 100, 45 and 28 kHz. However, when the time is 10 seconds or more, the correlation with the mortality rate becomes high at 100<45=28 kHz; and at 30 seconds or more, the mortality rate can be expected to climb to 90% or more at either 45 or 28 kHz. (6) The egg mass mortality rate is low under almost all experiment conditions, and almost no effect can be expected.
Journal
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- pestology(Pest Control Research)
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pestology(Pest Control Research) 25 (2), 53-58, 2010-10-31
The Japanese Society of Pestology
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Keywords
Details 詳細情報について
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- CRID
- 1390001288130248320
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- NII Article ID
- 110007811788
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- NII Book ID
- AA12402244
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- ISSN
- 24321540
- 18803415
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- NDL BIB ID
- 10884356
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- CiNii Articles
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- Abstract License Flag
- Disallowed