頁籤選單縮合
題 名 | 春植蔗田內黑細姬蜂之發生消長=Occurrence of Meloboris Sinicus (Holmgren) in Spring Cane |
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作 者 | 鄭文義; 陳先明; 王瑞圖; | 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15-28 |
分類號 | 434.718 |
關鍵詞 | 黑細姬蜂; 發生消長; 春植甘蔗; 黃螟; 條螟; 二點螟; 紫螟; Meloboris sinicus; Seasonal occurrence; Spring cane; Argyroploce schistaceana; Procera venosatus; Chilotraea infuscatella; Sesamia inferens; |
語 文 | 中文(Chinese) |
中文摘要 | 在73/74至82/83共10個年期之春植F160調查田,自甘蔗萌芽整齊至採收前,每兩週一次在208m²面積内割取枯心,又在104m²面積内逢機選取30支蔗莖均予縱剖,採獲黃螟、條螟、二點螟與紫螟等4種寄主幼蟲共計1,600隻及15隻黑細姬蜂之繭。844隻未被割傷之寄主幼蟲攜回室内飼養後,再採獲24隻本蜂之繭。經校正可能寄生於被割傷寄主體内之數隻後,得知二點螟幼蟲之被寄生率為4.7%、條螟為2.1%,但83隻黃螟與39隻紫螟幼蟲則未被寄生。不同年期採獲與飼獲之黑細姬蜂,以80/81年期之平均每次採獲0.86隻最多,但74/75、76/77與77/78三個年期均未採獲。本蜂主要發生於三月上半月至五月上半月之幼蔗期,平均每次採獲0.33-1.89隻本蜂之繭,其次為七月上半月至八月上半月,平均採獲0.22-0.44隻,然後是十月中,平均採獲0.13-0.25隻,採獲之繭數雖隨寄主數之大幅降低而進一步減少,但寄生率反而略昇為4.5-8.0%。不定期不定點調查顯示:本蜂出現時期與隻數,主要隨寄主蔗螟之發生而異。 |
英文摘要 | Seasonal occurrence of an important larval parasitoid, Meloboris sirncus (Holmgren), of the sugarcane moth borers was studied by collecting the host larvae from dead hearts taken in a 208 m ² area and also from 30 stems sampled in a 104 m ² area once every 2 weeks about one and a half month after planting till the harvest of the F160 spring cane in 1984/85 to 1993/94 crops. Fifteen cocoons of this parasitoid were collected from 1,600 host larvae and 24 more cocoons from 844 uninjured host larvae, all of which were brought back to the laboratory and reared on cane pieces. The parasitisms by this parasitoid were 4.7% and 2.1% on the larvae of Chilotraea infuscatella and Procera venosatus, respectively, while none of the 83 Argyroploce schistaceana and the 39 Sesamia inference larvae were found parasitized. The highest number of cocoons per survey observed was 0.86 in the 1991/92 crop, and no cocoon was collected in the crop years of 1985/86, 1987/ 88, and 1988/89. Averages of 0.33-1.89 cocoons per survey appeared in the young-cane stage from the first half of March to the first half of May, then 0.22-0.44 cocoons per survey were found from the first half of July to the first half of August, and only 0.13- 0.25 cocoons per survey were obtained in October. Although the number of cocoons decreased as the host number greatly decreased in October, the percentage of parasitism in this period increased inversely. It was also observed that the collection of this parasitoid was greatly affected by the occurrence of the hosts. |
本系統中英文摘要資訊取自各篇刊載內容。