Influence of temperature on spring flight initiation for southwestern ponderosa pine bark beetles (Coleoptera

Curculionidae, Scolytinae)

Monica L Gaylord, K. K. Williams, Richard Hofstetter, J. D. Mcmillin, T. E. Degomez, M. R. Wagner

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Determination of temperature requirements for many economically important insects is a cornerstone of pest management. For bark beetles (Coleoptera: Curculionidae, Scolytinae), this information can facilitate timing of management strategies. Our goals were to determine temperature predictors for flight initiation of three species of Ips bark beetles, five species of Dendroctonus bark beetles, and two genera of bark beetle predators, Enoclerus spp. (Coleoptera: Cleridae) and Temnochila chlorodia (Mannerheim) (Coleoptera: Ostomidae), in ponderosa pine forests of northcentral Arizona. We quantified beetle flight activity using data loggers and pheromone-baited funnel traps at 18 sites over 4 yr. Ambient air temperature was monitored using temperature data loggers located in close proximity to funnel traps. We analyzed degree-day accumulation and differences between minimum, average, and maximum ambient temperature for the week before and week of first beetle capture to calculate flight temperature thresholds. Degree-day accumulation was not a good predictor for initiation of beetle flight. For all species analyzed other than D. adjunctus Blandford, beetles were captured in traps only when springtime temperatures exceeded 15.0°C. D. adjunctus was collected when maximum temperatures reached only 14.5°C. Once initial flights had begun, beetles were often captured when maximum ambient air temperatures were below initial threshold temperatures. Maximum and average air temperatures were a better predictor for beetle flight initiation than minimum temperature. We establish a temperature range for effective monitoring of bark beetles and their predators, and we discuss the implications of our results under climate change scenarios.

Original languageEnglish (US)
Pages (from-to)57-69
Number of pages13
JournalEnvironmental Entomology
Volume37
Issue number1
DOIs
StatePublished - Feb 2008

Fingerprint

Scolytidae
Pinus ponderosa
bark beetles
Curculionidae
bark
beetle
flight
Coleoptera
temperature
funnel traps
ambient temperature
air temperature
heat sums
Temnochila
Enoclerus
ambient air
Dendroctonus
Cleridae
Ips
predators

Keywords

  • Degree day
  • Dendroctonus
  • Ips
  • Pinus ponderosa
  • Temperature

ASJC Scopus subject areas

  • Insect Science
  • Environmental Science(all)

Cite this

Influence of temperature on spring flight initiation for southwestern ponderosa pine bark beetles (Coleoptera : Curculionidae, Scolytinae). / Gaylord, Monica L; Williams, K. K.; Hofstetter, Richard; Mcmillin, J. D.; Degomez, T. E.; Wagner, M. R.

In: Environmental Entomology, Vol. 37, No. 1, 02.2008, p. 57-69.

Research output: Contribution to journalArticle

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