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The objective of this study was to evaluate the composition and abundance of dormant bedbugs inChloris distichophyllaLag (Poales: Poaceae) over the soybean and corn off-season. The work was carried out in the municipality of Cruz Alta, over the soybean and corn off-season between 2014 and 2018. Plants ofC. distichophyllawith different clump diameter were sampled, and the bugs contained in them were counted and submitted to data analysis for the evaluation of the composition, structure, and diversity of occurring species. At the end of the experiment, 3543 hibernating adults were counted and divided into six species:Euschistus heros(F.),Dichelops furcatus(F.),Dichelops melacanthusDallas,Edessa meditabunda(F.),Edessa ruformaginata(De Geer) (Hemiptera: Pentatomidae). The speciesE. heroswas the most abundant, followed byD. furcatus. The diameter of the clumps directly affects the population density of the stink bugs. Finally,C. distichophyllais shown as a hibernate favorable to the maintenance of the stink bug populations over the soybean and corn off-season. |
