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| 題 名 | 數種殺蟍劑和殺菌劑Triforine混合對玫瑰二點葉蟍毒效之影響 |
|---|---|
| 作 者 | 王文哲; 劉達修; | 書刊名 | 臺中區農業改良場研究彙報 |
| 卷 期 | 44 1994.09[民83.09] |
| 頁 次 | 頁1-11 |
| 分類號 | 433.85 |
| 關鍵詞 | 二點葉蟍; 混合藥劑; 毒效; Two-spotted spidermite; Mixtures of pesticides; Toxicity; |
| 語 文 | 中文(Chinese) |
| 中文摘要 | 在實驗室內,以常用之8種殺璊劑分別和殺菌劑18.6% triforine E.C. 1,000倍混合,比較單一殺璊劑和混合藥劑對玫瑰二點葉璊之毒效反應。測試結 果,2% abamectin E.C.、2.8% bifenthrin E.C、25% oxythioquinox W.P.、10% fenpropathrin E.C.及25% MNFA E.C.等5種殺璊劑和殺菌劑18.6% triforine混合 後,對玫瑰二點葉璊之毒效比使用單一殺璊劑為高;另20% benzomate E.C.和 68.1% propargite E.C. 2種殺璊劑在使用濃度提高,及25% bromopropylate E.C.在 使用濃度降低時,單一藥劑比混合藥劑對玫瑰二點葉璊之毒效為佳。再依據室內 測試結果,選取毒效較佳之4種混合劑,於玫瑰栽培區進行田間試驗,比較4種 混合劑對玫瑰二點葉璊之防治效果,結果以2% abamectin E.C.2,000倍和18.6% triforine E.C.1,000倍之混合劑對二點葉璊之成若璊、幼璊及卵之防治效果最佳, 防治率在95%左右,其次是10% fenpropathrin和18.6% triforine E.C.1,000倍之混 合劑,防治率都在77.9%以上,25% bromopropylate E.C.500倍及68.1% propargite E.C.1,000倍分別和18.6% triforine E.C.1,000倍之混合劑對成若璊及幼璊,防治 率也都在70.7%以上,但對卵之防治效果則較差。而4種混合劑除2% abamectin E.C.外,三種混合劑之防治效果只能維持到第二次施藥後7天,第二次施藥後14 天以後,防治效果降低,且呈不穩定現象。 |
| 英文摘要 | A laboratory study was carried out to determine the toxicity of eight miticides singly or in combination with fungicide triforine against the two-spotted spider mite, Tetranychus urticae Koch, on rose plants. The results showed that mixtures of abamectin (2% E.C.), bifenthrin (2.8% E.C.), oxythiquinox (25% W.P.), fenpropa-thrin (10% E.C.) and MNFA (25% E.C.)and triforine (18.6% E.C.), all at 1,000-fold dilution, were more toxic to the spider mites than the miticides applied singly. Benzomate (20% E.C.) and propargite (68.1% E.C.) at higher concentration, and bromopropylate (25% E.C.) at lower concentration were more effective when used singly than when used in combination with triforine. Subsequently four combinations of miticides with triforine were chosen for field test on their effectiveness for the control of the two-spotted spider mites on rose plants. Abamectin (2,000x) mixed with triforine (1,000x) were the best and gave 95% control of adults, nymphs, larvae and eggs of this spider mite. Fenpropathrin (1,000x) and triforine (1,000x) gave larger than 77.9% control. Bromopropylste (500x) and propargite (1,000x) mixed with triforine (1,000x) gave>70.7% control of adults, nymphs and larvae with less effect against the eggs. The control effect of mixtures of these miticides (except abamectin) and triforine lasted only up to 7 days after the second application; effectiveness decreased and was unstable after 14 days of the second application. |
本系統中英文摘要資訊取自各篇刊載內容。