Abstract
The objective of this study was to evaluate the diversity and abundance of stink bugs in Chloris distichophylla Lag (Poales: Poaceae) during the soybean and corn off-season. The work was carried out in the municipality of Cruz Alta, Rio Grande do Sul state, over the soybean and corn off-season between 2014 and 2018. 3543 adults were identified into six species: Euschistus heros (Fabricius, 1798), Dichelops furcatus (Fabricius, 1775), Dichelops melacanthus (Dallas, 1851), Edessa meditabunda (Fabricus, 1794), Edessa ruformaginata (De Geer, 1773) and Piezodorus guildinii (Westwood, 1837) (Hemiptera: Pentatomidae). E. heros was the most abundant, followed by D. furcatus. The diameter of the clumps directly affects the population density of the stink bugs. Finally, C. distichophylla is shown as favorable to the maintenance of the stink bug populations over the soybean and corn off-season.
Highlights
The objective of this study was to evaluate the diversity and abundance of stink bugs in Chloris distichophylla Lag (Poales: Poaceae) during the soybean and corn off-season
The knowledge about the plants associated with these insects during the off-season crop becomes of extreme importance for integrated pest management
Knowledge of the diversity of stink bugs that occur in the agricultural landscape is of great value for Integrated Pest Management (IPM)
Summary
The objective of this study was to evaluate the diversity and abundance of stink bugs in Chloris distichophylla Lag (Poales: Poaceae) during the soybean and corn off-season. C. distichophylla is shown as favorable to the maintenance of the stink bug populations over the soybean and corn off-season. Among the main pests of soybean and corn, stink bugs are highlighted due to their capacity of damage (Panizzi et al 2012).
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