Population Prevalence of Occurrence and Spatial Distribution Pattern of Piezodorus hybneri Adults(Heteroptera:Pentatomidae)on Soybeans

概要

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Population dynamics of stink bug Piezodorus hybneri adults in a soybean field were investigated from June to August in 1988-1990 by visual counting and mark-recapture method. The density of adults suddenly increased just after soybean plants reached pod development stage. Thereafter the density decreased, but increased again at the seed development stage. The second increase of adults was formed by new adults emerged in the soybean field. Spatial distribution of adults based on densities per plant was slightly aggregative and the distribution of males and females was more or less overlapping. Analysis by the JOLLY-SEBER method showed that daily survival rate was low and mean residence time was short, 2.9 days in 1988 and 4.9 days in 1989. The observed short residence time may be due to emigration rather than high mortality.
日本応用動物昆虫学会の論文
1992-08-25