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題 名 | 溫度對斑飛蝨生活史之影響 |
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作 者 | 邱明德; 吳明城; | 書刊名 | 高雄區農業改良場研究彙報 |
卷 期 | 5:2 1994.07[民83.07] |
頁 次 | 頁27-34 |
分類號 | 433.3 |
關鍵詞 | 溫度; 斑飛蝨; 生活史; Temperature; Life history; Laodelphax striatellus; |
語 文 | 中文(Chinese) |
中文摘要 | 近十年來斑飛蝨已成為水稻重要害蟲之一。在臺灣全省稻作栽培區普遍發生危害。本蟲除直接吸收稻汁為害外,並可傳播縞葉枯病間接影響稻穀生產。本研究以累代繁殖於高雄區農業改良場養蟲室之斑飛蝨為蟲源,臺農67號秧苗為飼料,於恆溫20、25與30℃觀察其生活史,每個處理溫度各觀察成蟲20對,若蟲40隻。 試驗結果發現斑飛蝨在20、25、30℃溫度下,每雌平均產卵數分別為146.1,186.5及71.8粒;平均卵期分別為14.02, 8.84及5.65日; 平均若蟲期分別為29.13,19.29及18.22日;平均成蟲壽命分別為30.2,23.37及18.8日。若蟲脫皮4次5齡,以第5齡若蟲發育日數最長。 長翅雌蟲之產卵數與短翅者差異不明顯。斑飛蝨在稗草羽化率最高82.5%,芒稷次之80.71%,高梁再次之78.52%。斑飛蝨一日最活躍時間是17 時並以若蟲數居多。 |
英文摘要 | Smaller brown planthopper (Laodelphax striatellus, Fallen) abbreviated as SBPH occurs in the paddy fields of all rice cultivated areas in Taiwan and has become an important insect pest of rice since last decade. Besides direct damage by sucking the juice from rice plants and the insect also transmit the rice stripe disease indirectly causing damage to rice production. Present study is aimed to investigate the influence of temperature on the life history of the pest. The tested SBPH was derived from the stock culture of the insect maintained in Kaohsiung District Agricultural Improvement Station and the seedlings of Tainung 67 was used as feeding material. Twenty pairs of adult SBPH and 40 individuals of nymphs each were subjected to the constant temperature of 20, 25, and 30℃. The results of experiment were summarized as follows: The averaged life span of adult SBPH at 20, 25 and 30℃ lasted 30.2, 23.37 and 18.8 days, respectively. During the period, a female laid 146.04 eggs at 20℃, 186.17 eggs at 25℃and 71.75 eggs at 30℃. The averaged duration for egg development at 20, 25 and 30℃ were 14.02, 8.84 and 5.65 days respectively. The nymph under-gone four-time molts, the fifth instar nymph took along time for development than the others. The duration of nymphal stage averaged 29.13 days at 20℃, 19.29 days at 25℃and 18.22 days at 30℃. The fecundity of adults between macropterous and brachypterous form was not different significantly. More than 70 percent nymphs could survive to adult insect when they were caged on the seedlings of Echinochlea crus-galli, Echinochlea colorum, Sorghum bicolon and Triticum aestivum. In the field conditions, SBPH tend to inhabit on the upper part of rice plants toward nightfall, since more number of the insect could be caught by sweep net during this period. |
本系統中英文摘要資訊取自各篇刊載內容。