黑背蘇鐵小灰蝶(Chilades pandava pandava Horsfield)之形態、生活史、為害、暨蟲生真菌對其幼虫之致病力

Morphology, Life History and Damage of Cycas Blue Butterfly (Chilades pandava pandava) as Well as Pathogenicity of Entomogenus Fungus to Its Larva

張玉珍(Yu-Cheng Chang)

《林業試驗所研究報告季刊》 4卷1期 (1989/03) Pp. 43-50

https://doi.org/10.7075/BTFRI.198903.0043

摘要

黑背蘇鐵小灰蝶係蘇鐵屬樹種之重要害蟲，受害樹株莖頂之嫩芽桔萎，無法向上生長，幼苗被其幼蟲蛀食後因之倒伏死亡。成蟲、卵、幼蟲與蛹各蟲期之形態均經觀察描述，並附以圖片。於室溫25～32℃之環境下，自卵至羽化為成蟲僅需17～20天。1981年7月間調查位於台北之碧山苗圃台灣蘇鐵幼苗平均受害率為17.76%。又於室內以蟲生真菌作接種試驗，獲知爪哇擬青霉菌對其第3齡與第4齡幼蟲之感病率分別為65%及60%。

關鍵字

黑背蘇鐵小灰蝶 ； 形態 ； 生活史 ； 為害 ； 爪哇擬青霉菌

並列摘要

The cycas blue butterfly (Chilades pandava pandava Horsfield) is an important pest of Cycas trees. Damaged plants show wilt of top bud and can no longer grow. The larva bores young stem and causes death of the seedling. Morphology of the adult, the egg, the larva and the pupa was observed and described with illustrations. Under 25-32℃ room temperature condition, the longevity from eggs to adults was 17-20 days. A survey on seedlings of Cycas taiwaniana was conducted in July, 1981, at Pishan Nursery, Taipei. The average percentage of damage was 17.76%. In the laboratory, the 3rd and the 4th instars of the larva were inoculated with an entomogenous fungus, Paecilomyces javanicus which gave 65% and 60% pathogenicty respectively.

並列關鍵字

Cycas blue butterfly ； Chilades pandava pandava ； morphology ； life history ； damage ； Paecilomyces javanicus