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題 名 | 自動噴水防治玫瑰白粉病=Management of Rose Powdery Mildew with Automatic Water Sprays |
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作 者 | 劉興隆; | 書刊名 | 植物保護學會會刊 |
卷 期 | 43:1 2001.03[民90.03] |
頁 次 | 頁7-16 |
分類號 | 435.415 |
關鍵詞 | 玫瑰; 白粉病; 噴水; 防治; Rose; Powdery mildew; Water sprays; Control; |
語 文 | 中文(Chinese) |
中文摘要 | 利用自走式自動噴水系統進行噴水防治玫瑰白粉病試驗。首先於溫室進行,結果每天早上8時、中午12時或下午5時噴水處理者白粉病之發生率分別為21.6 %、14.3 %及25.4 %,皆顯著低於不噴水者(94.1 %),顯示每天噴水時間不會影響防治玫瑰白粉病的效果;而後試驗噴水時間設定在早上9時及下午2時每天二次;而每星期噴水1天、3天、5天及7天者白粉病之發生率分別為78.3 %、55.8 %、10.8 %及1.6 %,顯示每星期噴水5天以上者會有較佳的防病效果;又每天噴水者(12.6 %)明顯較每2天噴水者(60.9 %)有較佳的防病效果。進一步在田間進行二次噴水防治玫瑰白粉病試驗,經處理二個月後,噴水區白粉病之發生率分別為10.8 %及1.9 %,而不噴水區分別為99.7 %及100 %,顯示每天噴水處理能有效防治玫瑰白粉病發生。 |
英文摘要 | Management efficacies of rose powdery mildew were examined by a self-propelled automatic sprays system in this study. Tests were studied in the greenhouse, and disease incidence were 21.6, 14.3, or 25.4 % for water sprays at 08: 00, 12: 00, or 17: 00, respectively. Results not only show that disease incidence of sprayed rose were significantly lower than that of unsprayed (94.1 %), but also show the disease incidence does not rely on sprays time during a day. Later tests, water sprays twice every day at 09: 00 and 14: 00. Disease incidence for water sprays a day, three days, five days, and seven days in a week were 78.3 %, 55.8 %, 10.8 %, and 1.6 %, respectively. Disease incidence decreased with increasing sprays days indicates that better disease control for water sprays at least 5-7 days a week. Disease incidence for water sprays every day (12.6 %) was significantly lower than water sprays every two days (60.9 %). Two field experiments were further studied for 2 months of water sprays every day, and the disease incidence were 10.8 and 1.9 %. The results of water sprayed area were significantly lower than that of unsprayed area (99.7 and 100 %) indicate that water sprays could effectively control rose powdery mildew. |
本系統中英文摘要資訊取自各篇刊載內容。