Large-Scale Evaluation of Association Between Pheromone Trap Captures and Cotton Boll Infestation for Pink Bollworm (Lepidoptera: Gelechiidae)

Yves Carriere, Larry Antilla, Leighton Liesner, Bruce E Tabashnik

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

Although transgenic cotton producing insecticidal proteins from Bacillus thuringiensis (Bt) is a cornerstone for pink bollworm control in some countries, integrated pest management remains important for bolstering sustainability of Bt cotton and is critical for controlling pink bollworm where Bt cotton is not available or where this pest has evolved resistance to Bt cotton. Here, we used data on moth captures in gossyplure-baited pheromone traps and boll infestations for 163 Bt and 152 non-Bt cotton fields from Arizona to evaluate accuracy of chemical control decisions relying on moth trapping data and capacity of Bt cotton to suppress survival of offspring produced by moths. Assuming an economic injury level of 12% boll infestation, the accuracy of decisions based on moth captures corresponding to economic thresholds of 6%, 8%, and 10% boll infestation increased from 44.7% to 67.1%. The association between moth captures and boll infestation was positive and significant for non-Bt cotton fields but was not significant for Bt cotton fields. Although chemical control decisions based on trapping data were only moderately accurate, pheromone traps could still be valuable for determining when moth populations are high enough to trigger boll sampling to more rigorously evaluate the need for insecticide sprays.

Original languageEnglish (US)
Pages (from-to)1345-1350
Number of pages6
JournalJournal of Economic Entomology
Volume110
Issue number3
DOIs
StatePublished - Jun 1 2017

Keywords

  • control decision
  • economic injury level
  • economic threshold
  • IPM
  • validation

ASJC Scopus subject areas

  • Medicine(all)
  • Ecology
  • Insect Science

Fingerprint Dive into the research topics of 'Large-Scale Evaluation of Association Between Pheromone Trap Captures and Cotton Boll Infestation for Pink Bollworm (Lepidoptera: Gelechiidae)'. Together they form a unique fingerprint.

  • Cite this