台灣粉紅舞蛾之生活史及對黑角舞蛾核多角體病毒之感受力

The life cycle of Lymantria mathura subpallida Okano and it’s susceptibility to LyxyNPV

陳盈伃(Ying-Yu Chen)

指導教授 ： 王重雄

國立臺灣大學/生物資源暨農學院/昆蟲學研究所/碩士(2004年)

https://doi.org/10.6342/NTU.2004.01416

摘要

台灣粉紅舞蛾 (Lymantria mathura subpallida Okano) 是台灣原生亞種，屬舞毒蛾科 (Lymantriidae) 是為害林木害蟲之一，名列世界檢疫重要害蟲。在光週期14/10 (L/D)，相對濕度70 ± 5％下，以楓香 (Liquidambar formosana) 分別飼養於 15、20、25及30℃之步入式生長箱，其發育期分別為 (15℃下 179.32 ± 0.22日，20℃下 82.88 ± 1.65 日，25℃下 74.22 ± 1.40 日，30℃下 66.52 ± 0.12日)。幼蟲期雌蟲共有8齡，雄蟲7齡。雌成蟲羽化後平均1.5日即可進行交尾，未交尾之平均壽命為 6.5 ± 1.2日；交尾者 4.5 ± 0.5日壽命。每一雌蛾平均產卵塊一個，含卵 200 ~ 300 粒。於25℃，14/10 (L/D) 飼育之粉紅舞蛾並不休眠，每年可有 5 ~ 6 世代，並有世代重疊現象。初步試驗，粉紅舞蛾可接受黑角舞蛾核多角體病毒感染，但 PIB 產量不如預期之高。以吉普賽蛾之人工飼料，添加楓香葉或其他調配之飼料進行飼養實驗，幼蟲之生長發育較取食新鮮楓香葉者遲緩，蟲體健康狀況也較差。故粉紅舞蛾人工飼料之配方仍須進一步研究。

關鍵字

台灣粉紅舞蛾 ； 黑角舞蛾核多角體病毒 ； 生活史

並列摘要

Lymantria mathura subpallida Okano (Lymantriidae) is a native species in Taiwan. It is not only a pest for plants and forests, but also an important quarantine pest in the world. In this study, the larvae were reared on fresh leaves of Liquidambar formosana (Hamamelidaceae) at constant temperatures under 70 ± 5 % RH, and at a photoperiod of 14:10 (L:D) rough out the experiment. The developmental periods of this moth reared at 15, 20, 25 and 30℃ were 179.32 ± 0.22, 82.88 ± 1.65, 74.22 ± 1.40 and 66.52 ± 0.12 days, respectively. At 25℃, the female moth mated 1.5-days after emergence. The life span of unmated female moth was 6.5 ± 1.2 days, the mated was 4.5 ± 0.5 days. Each female lay one egg mass containing 200-300 eggs. The female larvae consisted of eight instars while the male was only seven instars at 25℃. At 25℃, 14:10 (L:D), the L. mathura subpallida Okano had 5 ~ 6 generations per year, but no diapause was found. In preliminary test, the larvae were susceptible to LyxyNPV (Lymantria xylina nucleopolyhedrovirus, LyxyNPV), but it is needed to evaluate the potential of this moth to be a substitute host for LyxyNPV mass production. The artificial diet for gypsy moth diet and that modified by adding with the homogenized leave of Li. formosana or other additives, were used to rear newly hatched larvae. The results showed that these media were not adequate for the growth of the larvae, due to the delayed development and unhealthy problem of larvae were found. Therefore, the artificial medium for L. mathura subpallida Okano is needed to be developed in further work.

並列關鍵字

Lymantria mathura subpallida Okano ； Lymantria xyli

參考文獻

猶建中，高懷心，王重雄，趙榮台，陸聲山。1997。黑角舞蛾核多角體病毒之特性及體外增殖系統之建立。中華昆蟲 17(1): 11-22。

陳素瓊，歐陽盛芝。2002。溫度對琉球青斑蝶 (Radena similes similes Linnaeus) （鱗翅目：斑蝶科）發育之影響。台灣昆蟲 22(3): 237-248。

鄭秋玲，廖麗雯，鄭明發。青枯葉蛾 (Trabala vishnou Lefebure) （鱗翅目：枯葉蛾科）之形態及生活史觀察。台灣昆蟲 22(2): 135-145。

Chao, J. T., P. W. Schaefer, Y. B. Fan, and S. S. Lu. 1996. Host plants and infestation od Casuarina moth Lymantria xylina (Lepidoptera: Lymantriidae) in Taiwan. Taiwan J. Forest Sci. 11: 23-28.

Chao J. T., S. S. Lu, Y. M. Chen, L. M. Jaung, C. N. Koh, and W. C. Yeh. 2001. How fecund is Lymantria xylina Swinhoe (Lepidoptera: Lymantriidae) in Taiwan. Taiwan J. For Sci. 16(4): 259-266.