田間釋放玉米螟赤眼卵蜂 (Trichogramma ostriniae) 防治亞洲玉米螟 (Ostrinia furnacalis) 效果評估
Other Title
Assessment of field releases of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) for the control of the Aaian corn borer, Ostrinia furnacalis (Lepidoptera: Pyralidae)
Journal
中華農業研究
Journal Volume
41
Journal Issue
3
Pages
295-310
Date Issued
1992-09-09
Date
1992-09-09
Author(s)
余志儒
陳健忠
周樑鎰
J.Z. Yu
C.C. Chen
Liang-Yih Chou
Abstract
本試驗於本省臺中縣外埔、霧峰及烏日等地區，以連續增補釋放玉米螟赤眼卵蜂（Trichogramma ostriniae Pang & Chen）的方式，進行對亞洲玉米螟（Ostrinia furnacalis（Guénée））防治效果評估及與化學防治法的比較。自74年秋作至76年春作四期作之試驗結果，除75年秋作不明顯外，單獨釋放該蜂或放蜂配合施用藥劑均可減少植株被害率，有防治玉米螟之效果，但在絕大部份的處理區中，玉米螟卵塊發生數均與卵塊被寄生率無顯著相關性；在74年秋作和75年春作的放蜂區，玉米螟卵塊被寄生率分別為43.61～55.61％和32.33～40.29％，75年秋作和76年春作經增加放蜂量後其寄生率均大幅提高，分別為70.54～74.20％和60.79～65.13％，顯示玉米螟赤眼卵蜂在玉米螟之綜合防治策略中有其利用價值。比較藥劑防治區和對照區之玉米螟卵塊被寄生率，二者間差異不顯著，此表示施用加保扶（3％ Furadan）或毒斯本（5％ Dursban）粒劑農藥對本寄生蜂田間族群無明顯的不利影響。
The egg parasitoid, Trichogramma ostriniae pang & Chen, was released for the control of the Asian corn borer at Waipu, Wufeng and Wujih in central Taiwan for each crop season from fall of 1985 to spring of 1987. Control efficacy through various corn borer control strategies was evaluated over four crop seasons in this study. In summary, releases of T. ostriniae only or integrating parasitoid with insecticide application reduced percent plant injured and gained good control of the Asian corn borer. Parasitism of corn borer egg masses was generally uncorrelated to the abundance of borer egg masses occurred in corn field. Percent parasitisms of egg masses are 43.61~55.6% and 32.33~40.29% over wasp releasing treatments in fall crop 1985 and spring crop 1986, respectively. The increase of releasing number of the wasps raised the parasitism of egg masses up to 70.54~74.20% and 60.79~65.13% over wasp releasing treatments in fall crop 1986 and spring crop 1987, respectively, which revealed the potential of using T. ostriniae in Asian corn borer management system. Percent parasitisms of egg masses for control treatments were not consistently higher than those for insecticide only treatments, which indicated that the use of granular insecticide might not cause any adverse effect on the wasps.
Subjects
亞洲玉米螟
玉米螟赤眼卵蜂
生物防治
綜合防治
Asian corn borer
Trichogramma ostriniae
Biological control
Integrated pest control
Publisher
農業試驗所
Type
journal article
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