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- Effect of Temperature on Prey Consumption Rate of the Green Lacewing Mallada basalis (Walker) (Neuroptera: Chrysopidae) to Two Species of Pest Mites, Tetranychus kanzawai Kishida and Panonychus citri (McGregor) (Acari: Tetranychidae)
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題名 | Effect of Temperature on Prey Consumption Rate of the Green Lacewing Mallada basalis (Walker) (Neuroptera: Chrysopidae) to Two Species of Pest Mites, Tetranychus kanzawai Kishida and Panonychus citri (McGregor) (Acari: Tetranychidae)=溫度對基徵草蛉Mallada basalis (Neuroptera: Chrysopidae)捕食神澤氏葉蟎Tetranychus kanzawai與柑桔葉蟎Panonychus citri (Acari: Tetranychidae)速率之影響 |
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作者姓名(中文) | 鄭玲蘭; 楊平世; 盧秋通; 陳健忠; | 書刊名 | 臺灣農業研究 |
卷期 | 61:2 2012.06[民101.06] |
頁次 | 頁158-164 |
分類號 | 433.3 |
關鍵詞 | 葉蟎; 捕食性昆蟲-獵物交互作用; 取食行為; 捕食速率; 生物防治; Phytophagous mites; Predator-prey interaction; Feeding behavior; Predation rate; Biological control; |
語文 | 英文(English) |
中文摘要 | 基徵草蛉(Mallada basalis)對神澤氏葉蟎(Tetranychus kanzawai)和柑桔葉蟎(Panonychus citri)兩種木瓜重要害蟎具有防治潛力,然而溫度會影響昆蟲的生長速率、存活、生殖和壽命,進而影響捕食性昆蟲與其獵物間的族群變動,因此溫度對草蛉壓制葉蟎族群之效能可產生重大影響。此外,溫度也會影響捕食性天敵對害蟲的捕食速率,本研究乃於實驗室內測定基徵草蛉於5種溫度下(15、20、25、30和35℃)對神澤氏葉蟎與柑桔葉蟎的捕食速率。試驗結果顯示基徵草蛉對兩種葉蟎之捕食速率於15至30℃間隨溫度升高而增加,而溫度達35℃捕食速率即降低。基徵草蛉之二齡幼蟲於15℃下30分鐘內可捕食16.3±1.0隻神澤氏葉蟎之若蟎或26.4±1.8隻柑桔葉蟎之若蟎,而於30℃下可捕食45.7±2.5隻神澤氏葉蟎之若蟎或48.0±3.3隻柑桔葉蟎之若蟎。基徵草蛉於5種試驗溫度下之捕食速率趨勢於兩種葉蟎間略有差異,可能與兩種葉蟎在木瓜葉片上有不同的空間分布,以及草蛉捕食兩種葉蟎所需的獵物處理時間(handling time)不同有關。基徵草蛉在廣泛的溫度範圍中對兩種葉蟎皆具極高的捕食效率,即使在15℃的低溫下亦同,顯示基徵草蛉在台灣具有終年應用的潛力,但實際應用策略的擬訂仍待進一步田間試驗的評估。 |
英文摘要 | The green lacewing, Mallada basalis, has been shown to have high potential as a biological control agent against two mite species of economic importance on papaya: the Kanzawa mite, Tetranychus kanzawai, and the citrus mite, Panonychus citri. However, the impact that this predator can have on mite populations is dependent on prevailing environmental temperatures, which influence predator-prey dynamics by affecting developmental rate, survival, reproduction, and longevity. Another effect of temperature, which this study investigated, is predator consumption rate. We measured the consumption rates of 2nd instar M. basalis on T. kanzawai and P. citri at five temperatures (15, 20, 25, 30, and 35°C) in the laboratory. Results indicated that prey consumption by 2nd instar lacewings was temperature-dependent, increasing between 15 and 30°C for both mite species; however, consumption declined at 35°C. Numbers of T. kanzawai nymphs consumed in a 30-min trial ranged from 16.3 ± 1.0 at 15°C to 45.7 ± 2.5 at 30°C. On P. citri, predators consumed 26.4 ± 1.8 nymphs at 15°C and 48.0 ± 3.3 at 30°C. There were slightly different trends in the consumption rate of the lacewing in response to the five temperatures between the two mites, and this might be the result of the different spatial distribution patterns of the two mites as well as different handling times of the lacewing for the two mites. High prey consumption rates across a wide temperature range, including temperatures as low as 15°C, suggest that M. basalis may be suitable for year-round application in Taiwan against both T. kanzawai and P. citri. However, further investigations on the effect of temperature on the predatory potential of M. basalis under field conditions are needed for effective application of this lacewing in papaya mite management programs. |
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