Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/30452
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dc.contributor.advisor蘇宗宏zh_TW
dc.contributor.advisorTsong-Hong Suen_US
dc.contributor.author何惠茹zh_TW
dc.contributor.authorHer, Huei-ruen_US
dc.date2005zh_TW
dc.date.accessioned2014-06-06T07:39:27Z-
dc.date.available2014-06-06T07:39:27Z-
dc.identifier.urihttp://hdl.handle.net/11455/30452-
dc.description.abstract銀葉粉蝨(Bemisia argentifolii)是台灣重要經濟作物害蟲,引進之捕食性小黑粉蝨瓢蟲(Delphastus catalinae),是生物防治銀葉粉蝨之天敵,在實驗室和溫室內進行試驗以評估小黑粉蝨瓢蟲抑制銀葉粉蝨之效果。每株聖誕紅植株接種不同隻數(1、5及10隻/株)銀葉粉蝨雌成蟲,經七週後,釋放不同隻數(1、3及5隻/株)小黑粉蝨瓢蟲雌成蟲。因實驗室內冬季溫度較低,平均22℃,粉蝨族群維持在較低密度,結果在有釋放瓢蟲與未釋放的處理間無顯著差異。在溫室接種粉蝨1和5隻/株的試驗中,釋放瓢蟲後與對照組的粉蝨族群密度差異顯著,顯示該瓢蟲對於粉蝨族群具有抑制效果;在接種10隻粉蝨/株試驗,到第八週,植株因為粉蝨族群繼續增加,葉片已呈現凋謝枯萎。溫室中粉蝨死亡率雖與對照組差異顯著,但是溫度過高平均28℃,造成粉蝨大發生,即使釋放瓢蟲有抑制粉蝨族群效果,但此時的聖誕紅植株已失去觀賞價值。zh_TW
dc.description.abstractThe silverleaf whitefly, Bemisia argentifolii, is an important economic pest in Taiwan. Delphastus catalinae was introduced from Canada in 1999 to aid in the control of the whitefly. In this study, we evaluated the effects of D. catalinae on the control of the whitefly in laboratory and the greenhouse. The whitefly at the densities of 1, 5 and 10 females per plant was inoculated on poinsettia. After the whitefly was allowed to establish and develop on poinsettia for 7 weeks, D. catalinae was released on the plant at 0, 1, 3, or 5 females per plant. When the whitefly was inoculared at 1 and 5 females per plant, the mean numbers of the whitefly between the two groups of the control (without D. catalinae released) and the treatment (with D. catalinae released) were significantly different. This indicated that D. catalinae was effective in controlling the whitefly when only 1 or 5 females of the whitefly were inoculated on each plant. However, D. catalinae was not effective in controlling the whitefly when 10 females of the whitefly were inoculated on each plant. The reason for the effectiveness was attributed to the population build up of the whitefly, resultting plant in greenhouse 8 weeks after the inoculation of the whitefly. Under the greenhouse conditions, despite there was singnificantly difference in the whitefly mortality between the released of D. catalinae and control treatment. The value of poinsettia was lost due to the drastic increase of the whitefly because the warmer condition(28℃) in a greenhouse.en_US
dc.description.tableofcontents中文摘要………………………………………………………….1 前言……………………………………………….………………2 前人研究………………………………………….………………4 一、銀葉粉蝨之生物特性 (一)、銀葉粉蝨之分類地位 (二)、銀葉粉蝨之形態特徵 (三)、銀葉粉蝨之危害作物 (四)、銀葉粉蝨之生物防治方法 二、小黑粉蝨瓢蟲之生物特性 (一)、小黑粉蝨瓢蟲之分類地位與分布範圍 (二)、小黑粉蝨瓢蟲之形態與生物學特徵 (三)、小黑粉蝨瓢蟲之生活習性 (四)、小黑粉蝨瓢蟲之捕食對象 (五)、小黑粉蝨瓢蟲於生物防治上之應用 材料與方法…………………………………………………………11 一、供試蟲源和供試植株………………………………………11 (一)小黑粉蝨瓢蟲之來源 (二) 小黑粉蝨瓢蟲之飼育方法 (三)銀葉粉蝨之繁殖 (四)聖誕紅植株之栽種 二、實驗室中不同密度銀葉粉蝨的聖誕紅上釋放不同密度小黑粉蝨瓢蟲…………………………………………………………13 三、溫室中不同密度銀葉粉蝨的聖誕紅上釋放不同密度小黑粉蝨 瓢蟲…………………………………………………………14 四、統計分析方法………………………………………………15 結果…………………………………………………………………16 討論…………………………………………………………………22 參考文獻……………………………………………………………29 英文摘要……………………………………………………………36 圖……………………………………………………………………37zh_TW
dc.language.isoen_USzh_TW
dc.publisher昆蟲學系zh_TW
dc.subject小黑粉蝨瓢蟲zh_TW
dc.subject銀葉粉蝨zh_TW
dc.subject聖誕紅zh_TW
dc.subject生物防治zh_TW
dc.title小黑粉蝨瓢蟲在實驗室及溫室內聖誕紅上抑制銀葉粉蝨之效果zh_TW
dc.titleEffects of Delphastus catalinae (Horn) (Coleoptera: Coccinellidae) on suppression of Bemisia argentifolii Bellows & Perring (Homoptera: Aleyrodidae) on poinsettia in laboratory and greenhouseen_US
dc.typeThesis and Dissertationzh_TW
item.cerifentitytypePublications-
item.grantfulltextnone-
item.languageiso639-1en_US-
item.fulltextno fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeThesis and Dissertation-
Appears in Collections:昆蟲學系
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