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題名 | 溫度對檬果小黃薊馬(Scirtothrips dorsalis Hood)發育與繁殖之影響=Effects of Temperature on Development and Reproduction of Scirtothrips dorsalis Hood on Mango |
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作者姓名(中文) | 陳怡如; 林鳳琪; 邱一中; 石憲宗; | 書刊名 | 臺灣農業研究 |
卷期 | 62:4 2013.12[民102.12] |
頁次 | 頁351-359 |
分類號 | 435.325 |
關鍵詞 | 小黃薊馬; 檬果; 發育; 產卵; Scirtothrips dorsalis hood; Chilli thrips; Mango; Development; Reproduction; |
語文 | 中文(Chinese) |
中文摘要 | 小黃薊馬(Scirtothrips dorsalis Hood)為影響檬果(Mangifera indica Linn)產量與品質的關鍵害蟲。本研究以檬果葉片飼育小黃薊馬,於20、24、28及32℃之恆溫下觀察其生活史,分析溫度對其發育與繁殖之影響,作為未來研擬防治策略之參考。結果顯示,在4個溫度下未成熟期薊馬之存活率均達80%以上;由卵發育至成蟲所需時間依溫度升高而縮短,分別為21.5、14.8、12.1及9.8 d;雌蟲的平均壽命依序為26.3、17.4、19.8及13.2 d;每一雌蟲一生總產卵數依序為37.3、38.4、74.0及40.0粒。由溫度與發育速率之直線回歸方程式,估算小黃薊馬卵至成蟲之發育臨界低溫為9.6℃,發育總積溫為219.1日度(degree-days)。以台南地區全年之有效積溫估計,小黃薊馬在檬果上年可發生約40世代,每年2-6月氣溫適合其生活發育與繁殖,也是其在檬果園發生高峰期。 |
英文摘要 | The chilli thrips, Scirtothrips dorsalis Hood (Thysanoptera: Thripidae), is one of key pests of mangoes (Mangifera indica Linn). Its life history was measured at constant temperatures of 20, 24, 28, and 32℃ on mango for evaluating the effect of the temperatures on development and fecundity of chilli thrips. Results showed that the survival rate of immature stages exceed 80% at four temperatures. The total developmental time decreased as the temperatures increased from 20, 24, 28, to 32℃ were 21.5, 14.8, 12.1, and 9.8 days, respectively; the mean longevity of the female was 26.3, 17.4, 19.8, and 13.2 days; and the mean fecundity per female was 37.3, 38.4, 74.0, and 40.0 eggs. The linear models adequately described the relationship between temperature and developmental rates for immature stages of chilli thrips. Thus, thrips required 219.1 degree-days to complete development from egg to adult stage, above a low threshold of 9.6℃ as estimated by linear regression. According to annual effective accumulated temperatures in Tainan climate condition, chilli thrips are expected to have about 40 generations per year, and the outbreak of population density appear from February to June in Tainan mango orchard. |
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