Environmental Behavior of Fenitrothion Aerially Sprayed over Forest for Control of Pine Sawyer Beetles (<i>Monochamus alternatus</i>)
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- HIRAMATSU Reiji
- Yamaguchi Agricultural Experiment Station
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- FURUTANI Fumie
- Yamaguchi Agricultural Experiment Station Present address: Agriculture and Forestry Department of Yamaguchi Prefecture
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- NAGIRA Minoru
- Yamaguchi Agricultural Experiment Station Present address: Agriculture and Forestry Department of Yamaguchi Prefecture
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- OKA Hideo
- Yamaguchi Prefectural Research Institute of Health
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- TASAKA Miwako
- Yamaguchi Prefectural Research Institute of Health
Bibliographic Information
- Other Title
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- 松くい虫防除のために空中散布されたMEPの自然環境における動態
- マツクイムシ ボウジョ ノ タメ ニ クウチュウ サンプサレタ MEP ノ シ
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Abstract
With an aim to evaluate ecological effects of fenitrothion (MEP) sprayed aerially over a forest for control of pine sawyer beetles, residues of MEP in soil and aquatic systems (water, sediment, fish) were investigated. In soil, MEP concentration was 2.87-56.3ppm in the organic horizon on the 2nd day after application, and decreased to 0.164-0.546ppm after one year, which was 178-1060 times as high as that in the mineral horizon. MEP residues after one year were estimated to be 0.16-0.25% of the applied dosage. In water, maximum MEP concentrations were 93.9ppb in streams on the application day, 24.4ppb at the first rainfall after application, 2.31ppb in estuaries, 508ppb in a pond. MEP dropped in the streams ran off rapidly, and the remaining MEP in the forest ran off with the first rainfall after application. MEP effusions were estimated to be 0.71% and 0.0092% of the applied dosage with an 89mm rainfall on the 2nd day and with a 36mm rainfall on the 5th day after another application, respectively. MEP concentration in the small pond was relatively high, decreasing exponentially with a half-life of 1.1-2.4 days. Little MEP remained in sediments. MEP in carp changed in proportion to the concentration in the water, maximum concentrations being 2.33ppm in the carp in the streams and 20.6ppm in the carp in the pond. The ratios of MEP concentration in the carp to the water were 5.2-2000 in the streams and 70-690 in the pond.
Journal
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- Journal of Pesticide Science
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Journal of Pesticide Science 15 (1), 23-30, 1990
Pesticide Science Society of Japan
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Details 詳細情報について
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- CRID
- 1390282680185896832
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- NII Article ID
- 110001712319
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- NII Book ID
- AN00196227
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- ISSN
- 03851559
- 13490923
- 1348589X
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- NDL BIB ID
- 3656680
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed