Spatial and Temporal Dynamics of Stink Bugs in Southeastern Farmscapes

摘要: A 3-yr study (2009–2011) was conducted to examine the spatial and temporal dynamics of stink bugs in three commercial farmscapes. Study locations were replicated South Carolina Georgia, an agriculturally diverse region known as southeastern coastal plain. Crops included wheat, Triticum aestivum (L.), corn, Zea mays soybean, Glycine max cotton, Gossypium hirsutum peanut, Arachis hypogaea (L.). Farmscapes sampled weekly using whole-plant examinations for with all other crops sweep nets. The predominant pest species phytophagous brown bug, Euschistus servus (Say), green Chinavia hilaris southern Nezara viridula Chi-square tests indicated a departure from normal distribution 77% analyses variance mean ratio, 37% slopes Taylor’s power law 30% coefficient β Iwao’s patchiness regression significantly greater than one, indicating aggregated distributions. Spatial Analyses by Distance IndicEs (SADIE) patterns 18% year-end totals 42% counts, 80% adults nymphs positively associated SADIE association tool. Maximum bug densities each crop occurred when plants producing fruit. Stink exhibited adjacent soybean Barnwell Lee Counties compared corn or fallow areas. diversity relatively small size fields Southeast leads colonization patches within farmscape. ecological management implications farmscapes are discussed.