Distribution, Feeding Site and Development of the Cabbage Bug, Eurydema rugosum MOTSCHULSKY (Hemiptera : Pentatomidae), on Cruciferous Plants

概要

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In plots where cruciferous plants grew sparsely, Eurydema rugosum were distributed uniformly from the lower to the upper part of the plants, whereas in dense plots, most of the bugs gathered on the upper portion. In a laboratory experiment in which distribution of the bugs was observed on densely set plants, they were found more or less uniformly distributed in the dark, while alomost all bugs gathered on the upper part when a fluorescent lamp was set 30 cm above the plants.Mortality of the bugs which fed on flowers, leaves or young stems of cruciferous plants was lower than those fed on old stems. Days to adult growth were significantly shorter in bugs fed on leaves or flowers than in those fed on young or old stems; adult weight was also significantly heavier in the flower group. Adults fed on old stems were lightest. The bugs preferred flowers for feeding to leaves, and leaves to stems.
日本応用動物昆虫学会の論文
1984-08-25