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Geospatial analyses were used to investigate the spatial distribution of populations of  Halyomorpha halys , an important invasive agricultural pest in mid-Atlantic peach orchards. This spatial analysis will improve efficiency by allowing growers and farm managers to predict insect arrangement and target management strategies. Data on the presence of  H .  halys  were collected from five peach orchards at four farms in New Jersey from 2012–2014 located in different land-use contexts. A point pattern analysis, using Ripley’s K function, was used to describe clustering of  H .  halys . In addition, the clustering of damage indicative of  H .  halys  feeding was described. With low populations early in the growing season,  H .  halys  did not exhibit signs of clustering in the orchards at most distances. At sites with low populations throughout the season, clustering was not apparent. However, later in the season, high infestation levels led to more evident clustering of  H .  halys . Damage, although present throughout the entire orchard, was found at low levels. When looking at trees with greater than 10% fruit damage, damage was shown to cluster in orchards. The Moran’s I statistic showed that spatial autocorrelation of  H .  halys  was present within the orchards on the August sample dates, in relation to both populations density and levels of damage. Kriging the abundance of  H .  halys  and the severity of damage to peaches revealed that the estimations of these are generally found in the same region of the orchards. This information on the clustering of  H .  halys  populations will be useful to help predict presence of insects for use in management or scouting programs.

Characterizing the spatial distribution of brown marmorated stink bug, Halyomorpha halys Stål (Hemiptera: Pentatomidae), populations in peach orchards