Within-field spatial distribution of megacopta cribraria (Hemiptera: Plataspidae) in Soybean (Fabales: Fabaceae)

Nicholas J. Seiter, Francis P.F. Reay-Jones, Jeremy K. Greene

Research output: Contribution to journalArticlepeer-review


ABSTRACT The recently introduced plataspid Megacopta cribraria (F.) can infest fields of soybean (Glycine max (L.) Merrill) in the southeastern United States. Grid sampling in four soybean fields was conducted in 2011 and 2012 to study the spatial distribution of M. cribraria adults, nymphs, and egg masses. Peak oviposition typically occurred in early August, while peak levels of adults occurred in mid-late September. The overall sex ratio was slightly biased at 53.1 ± 0.2% (SEM) male. Sweep samples of nymphs were biased toward late instars. All three life stages exhibited a generally aggregated spatial distribution based on Taylor's power law, Iwao's patchiness regression, and spatial analysis by distance indices (SADIE). Interpolation maps of local SADIE aggregation indices showed clusters of adults and nymphs located at field edges, and mean densities of adults were higher in samples taken from field edges than in those taken from field interiors. Adults and nymphs were often spatially associated based on SADIE, indicating spatial stability across life stages.

Original languageEnglish (US)
Pages (from-to)1363-1374
Number of pages12
JournalEnvironmental entomology
Issue number6
StatePublished - Dec 2013
Externally publishedYes


  • Megacopta cribraria
  • Spatial analysis by distance indices
  • Spatial association

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Ecology
  • Insect Science


Dive into the research topics of 'Within-field spatial distribution of megacopta cribraria (Hemiptera: Plataspidae) in Soybean (Fabales: Fabaceae)'. Together they form a unique fingerprint.

Cite this