Degree Day Requirements for Kudzu Bug (Hemiptera: Plataspidae), a Pest of Soybeans

Journal of Economic Entomology
Jessica I Grant, William O Lamp

Abstract

Understanding the phenology of a new potential pest is fundamental for the development of a management program. Megacopta cribraria Fabricius (Hemiptera: Plataspidae), kudzu bug, is a pest of soybeans first detected in the United States in 2009 and in Maryland in 2013. We observed the phenology of kudzu bug life stages in Maryland, created a Celsius degree-day (CDD) model for development, and characterized the difference between microhabitat and ambient temperatures of both kudzu, Pueraria montana (Lour.) Merr. (Fabales: Fabaceae) and soybeans, Glycine max (L.) Merrill (Fabales: Fabaceae). In 2014, low population numbers yielded limited resolution from field phenology observations. We observed kudzu bug populations persisting within Maryland; but between 2013 and 2016, populations were low compared to populations in the southeastern United States. Based on the degree-day model, kudzu bug eggs require 80 CDD at a minimum temperature of 14°C to hatch. Nymphs require 545 CDD with a minimum temperature of 16°C for development. The CDD model matches field observations when factoring a biofix date of April 1 and a minimum preoviposition period of 17 d. The model suggests two full generations per year in Maryland. Standard air tempera...Continue Reading

References

Jul 18, 2001·Forensic Science International : Synergy·M Benecke, R Lessig
Sep 12, 2013·Journal of Economic Entomology·Nicholas J SeiterFrancis P F Reay-Jones
Feb 20, 2014·PloS One·Takahiro HosokawaTakema Fukatsu
Oct 14, 2017·Environmental Entomology·Jessica I Grant, William O Lamp

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