隱蔽物與飼育密度對錨紋瓢虫（鞘翅目：瓢蟲科）發育與存活之影響

‘於室內25℃下，評估12公升裝養虫罐中添加隱蔽物與調整飼養密度對集體飼育錨紋瓢虫之效果。結果顯示有添加隱蔽物處理之幼虫、前蛹及蛹之存活率分別為51.4~56.0%、80.3~81.6%及83.4~93.7%，比對照無添加處理之41.8、77.0及78.9%高，但幼虫與蛹之發育時間及成虫體重均無顯著差異。以瓦楞紙或瓦楞塑膠片為隱蔽物之效果相近，皆能提高存活率。不同飼育密度對發育所需時間與成虫體重亦無顯著影響，幼虫與前蛹存活率以低密度每罐100隻者最高，達74.3%與91.8%，蛹存活率則不同飼育密度之間差異不顯著，介於93.5~94.6%之問。考量空間利用與操作方便，幼虫飼育密度以每罐100~200隻為宜。集體飼育以幼虫期之死亡率最高，為主要死亡時段，前蛹期次之，蛹期最低。

關鍵字

錨紋瓢虫；蚜虫；集體飼育；隱蔽物

並列摘要

Experiments were conducted to assess the effect of adding concealments and regulating density on the development and survival of Lemnia biplagiata (Swartz) by rearing larvae with a 12-litre container at 25℃ in laboratory. Results showed that adding concealments increased the survival rate of larva, prepupa and pupa were 51.4-56.0%, 80.3-81.6 and 83.4-93.7%, respectively, which was 41.8%, 77.0% and 78.9% respectively higher than the control without adding concealments. But there was no significant effect on the development time of larva and pupa, and body weight of adult. Adding corrugated paper or plastics as concealments had similar effect that increased the survival rate, but the pupal survival rate of the former was slightly higher. Low rearing density, 100 larva per container, had the highest survival rate of 74.3% and 91.8% for larva and prepupa, respectively. There was no significant difference among three rearing densities in terms of pupal survival rate which was 93.5-94.6%. Rearing 100-200 larvae in a container was appropriate when space and facility were considered. In general, larva having the lowest survival rate was the main fatal stage during group rearing following by prepupa and pupa.

並列關鍵字

Lemnia biplagiata Swartz ； Aphid ； Group rearing ； Concealment

國際替代計量

隱蔽物與飼育密度對錨紋瓢虫（鞘翅目：瓢蟲科）發育與存活之影響

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