絲瓜園扁蝸牛之發生與防治研究
Other Title
Seasonal Occurrence and Chemical Control of Bradybaena similaris on Sponge Gourd
Journal
中華農業研究
Journal Volume
39
Journal Issue
3
Pages
228-23
Date Issued
1990-09-08
Date
1990-09-08
Author(s)
溫宏治
Hung-Chich Wen
Abstract
扁蝸牛（Bradybena similaris（Férussac））為南部絲瓜園主要有害動物，食性雜、分佈廣。絲瓜園內主要分佈於支柱、地面及植株上。成蝸產卵於淺土內，約20～30粒為一堆。初孵化幼蝸為3螺層，成熟蝸為5～6螺層，蝸牛之體重受環境、氣候及食物之影響，以夏季最重，春、秋季次之，冬季最輕，扁蝸牛整年均可發生，其棲群密度由5月逐增，7月中旬達最高峰，10月後驟減，於絲瓜主幹及支柱地際部環施6％聚乙醛粒劑，可有效誘殺及阻斷扁蝸牛爬到植株上為害，且殘效持至21天。
Flate snail (Bradybaena similaris (Férussac)) is a destructive animal on sponge grourd in southern Taiwan. Being polyphagous, its host range is wide and the population is distributed mainly on holders, ground and plant in the field of sponge gourd. After hatching, there were 3 whorls on the room of young snail and 5-6 whorls on mature snail. The weight of snail was affected by environmental conditions and foods, and was heaviest in summer, followed by autumn and spring next and lightest in winter. This snail occurred all year-round in southern Taiwan. Its population increased in raining season (May. -Sep.) and decreased in dry season (Oct. -Apr.). It was obviously affected by preciptation. Two snailicides were tested for the control of this snail in field. Application of Metaldehyde 6% G. on the bottom of trunk of plant and holders gave the best control on this snail in the field and could last 21 days.
Subjects
絲瓜
扁蝸牛
棲群密度
6％聚乙醛粒劑
Sponge gourd
Flate snail
population
Metaldehyde 6% G.
Publisher
農業試驗所
Type
journal article
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