非農藥物質對番荔枝神澤氏葉蟎的殺蟎測試

Acaricidal Efficacy of Non-pesticide Materials to the Kanzawa Spider Mite, Tetranychus kanzawiai Kishida (Acari: Tetranychidae) on Annona squamosa L.

許育慈(Yu-Tzu Hsu)

《臺東區農業改良場研究彙報》 31輯 (2021/07) Pp. 47-61

摘要

為防治番荔枝園中發生的神澤氏葉蟎，選取礦物油、植物性油類、脂肪酸鹽類及其他類等合計14種非農藥物質，於室內進行源自番荔枝果園之神澤氏葉蟎雌成蟎致死效果測試。結果顯示，以礦物油2 ml/L、蓖麻油2、3.3及5 ml /L、蓖樟油3 ml/L與苦醋液5 ml/L，處理後72小時對神澤氏葉蟎的致死率超過65％。參考室內測試結果，選用蓖麻油3.3 ml/L、蓖樟油5 ml/L及苦醋液5 ml/L進行番荔枝果園田間試驗，結果以蓖樟油5 m/L處理組可達成70％之防治率，優於其他處理。具田間運用之實用性，尤其在果實採收前。

關鍵字

非農藥物質 ； 番荔枝 ； 神澤氏葉蟎

並列摘要

For the control of kanzawa spider mite (Tetranychus kanzawai Kishida) in custard apple field, effect of fourteen non-pesticide materials including mineral oil, plant essential oil, fatty acid salt, saponin, vinegar, urea, and diatomaccous earth on adult female of kanzawa spider mite were examined under laboratory conditions. Results revealed that the mortalities of kanzawa spider mite treated with mineral oil 2 ml/L and castor oil 2, 3.3, and 5 ml/L, castor-camphor oil mixture 3 ml/L, and neem oil-rice hull vinegar mixture 5 ml/L concentration were higher than 65% at 72 h after treatment. We selected castor oil 3.3 ml/L, castor-camphor oil mixture 5 ml/L and neem oil-rice hull vinegar mixture 5 ml/L for field trial. the treatment of castor-camphor oil mixture gave a control rate of around 70% to T. kanzawai, and showed promising to be applied in custard apple field to control T. kanzawai especially before harvest.

並列關鍵字

Non-pesticide materials ； Annona squamosa L. ； Tetrynuchus kanzawai