頁籤選單縮合
題 名 | 原料甘蔗之螟害=Borer Infestation of Millable Cane |
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作 者 | 鄭文義; | 書刊名 | 臺灣糖業公司研究所研究彙報 |
卷 期 | 165 1999.09[民88.09] |
頁 次 | 頁1-14 |
分類號 | 434.718 |
關鍵詞 | 秋植甘蔗; 春植甘蔗; 原料甘蔗; 節間螟害率; 黃螟; 條螟; 二點螟; Autumn cane; Spring cane; Millable cane; Internode infestation; Argyroploce schistaceana; Proceras venosatus; Chilotraea infuscatella; |
語 文 | 中文(Chinese) |
中文摘要 | 本所在64/65至72/73共設置9個年期秋植F160調查田,又在73/74至82/83再設置10 個年期春植 F160 調查田,調查秋、春植蔗田內蔗螟與其天敵之發生消長。各年期之調查田在採收前,均逢機選取 200-260 支原料甘蔗檢查各種蔗螟為害節間之情形。合計選取1,880 支秋植及 2,000 支春植原料甘蔗檢查,發現一支秋植原料莖最多曾出現過 35 個節間,最多 14 個被害;而春植原料莖最多有 29 個節間,被害 9 個節間,螟害支率則分別為 74.0 土 3.3% 與 68.5 土 4.2%。 檢查之 41,691 個秋植節間及 41,245 個春植節間中,分別有 10.22 土 1.22% 與 7.42 士 0. 65% 被蔗螟食害,並且均以黃螟之為害節間率最高,分別為 8.20 士 1.25% 與 4.42 土 0.55%,其次為條螟之 0.87 土 0.17% 與 1.40 土 0.25 %,及二點螟之 0.78 士 0.29% 與 1.55 士 0.46%,而紫螟與白螟則甚少為害原料甘蔗。自 4,386 個被害之秋植節間採獲 35 隻 5 種蔗螟之幼蟲與 5 隻蛹,自 3,085 個被害之春植節間採獲 30 隻幼蟲與 5 隻蛹。 |
英文摘要 | Survey fields were established at the Taiwan Sugar Research Institute to study the seasonal occurrence of cane borers and their important natural enemies in the 1975/76 tc 1983/84 F160 autumn cane and again in the 1984/85 to 1993/94 F160 spring cane. Before the harvest of each field, 200-260 millable canes were sampled to determine the internode infestation by each borer species. At most, 35 internodes with 14 borer-damaged ones per stem were found in the autumn cane, while 29 internodes with 9 damaged ones pel stem were observed in the spring cane. From the 1,880 autumn stems and 2,000 spring stems examined, 74.0 ± 3.3% and 68.5 ± 4.2% were, respectively, damaged by the five moth borer species occurring in Taiwan. Also, 10.22 ± 1.22% of the 41,691 internodes of autumn cane sampled and 7.42 ± 0.65% of the 41,245 internodes of spring cane sampled were infested by the borers. The greatest damage was caused by Argyroploce schis- taceana, which infested 8.20 ± 1.25% internodes of the autumn cane and 4.42 ± 0.55% internodes of the spring cane. Proceras venosatus was the next important one, which caused 0.87 ± 0.17% internode infestation in the autumn cane and 1.40 ± 0.25% in spring cane. This was followed by Chilotraea infuscatella, which damaged 0.78 ± 0.29% intern- odes of the autumn cane and 1.55 ± 0.46% of the spring cane. Both Sesamia inferens and Scirpophaga nivella rarely damaged the millable canes. In addition, 35 larvae and 5 pupae were collected from the 4,386 damaged internodes of the autumn cane, and 30 larvae and 5 pupae from the 3,085 infested internodes of the spring cane. |
本系統中英文摘要資訊取自各篇刊載內容。