不同寄主植物对马铃薯瓢虫成虫取食行为的影响

为研究不同寄主植物对马铃薯瓢虫成虫取食行为的影响，使用茄子、番茄、龙葵和马铃薯四种不同寄主植物的叶片供马铃薯瓢虫成虫取食，记录和分析其成虫在不同寄主植物上1 h内取食的次数和取食时长，对取食24 h后各寄主植物的缺刻长度和受害面积进行测算，同时对取食过程录像并分析其取食动作。结果表明，马铃薯瓢虫的取食过程包括搜寻、静息、取食、清洁和排泄等步骤。在四种不同寄主植物上，马铃薯瓢虫成虫的取食次数、取食时长、寄主植物的受害面积和缺刻长度均具有显著差异。

Effects of Different Host Plants on Feeding Behavior of Henosepilachna vigintioctomaculata Adults

In order to study the effects of different host plants on the feeding behavior of Henosepilachna vigintioctomaculata, the adults were collected in the fields and reared in the laboratory,the leaves of eggplant, tomato, dragon sunflower, and potato were used to analyze the number of feeding and feeding duration of H. vigintioctomaculata adults, the length of the scores and affected area of leaves were measured after fed by adults for 24h. At the same time, the feeding process were recorded and the feeding behavior was analyzed.The results showed that the feeding process of H. vigintioctomaculata adults includes search, rest, feed, clean and excrete. The number of feedings, total feeding duration, affected area of leaves and length of scores are significantly different among these four different host plants.