Pine shoot beetle, Tomicus piniperda (Col., Scolytidae), responses to common green leaf volatiles

• Published in: Journal of applied entomology (1986) Vol. 124; no. 2; pp. 63 - 69
• Main Authors: Poland, T. M., Haack, R. A.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Science, Ltd 01.05.2000; Blackwell
• Subjects: a-Pinene; Biological and medical sciences; Control; Fundamental and applied biological sciences. Psychology; Hexanol; Integrated pest control; Phytopathology. Animal pests. Plant and forest protection; Protozoa. Invertebrates; Scolytidae; Tomicus piniperda; Indiana; United States; North America; America; Michigan; Attractant; Coleoptera; Insecta; Overwintering; Alcohol; Pinus sylvestris; Allelochemicals; Pest; Pest management; Bait; Tomicus piniperda; Softwood forest tree; Gymnospermae; Attractive trap; Developmental stage; Volatile compound; Statistical analysis; Plant leaf; Aldehyde; Variance analysis; Arthropoda; Pinene; Coniferales; Spermatophyta; Disruption; Invertebrata; Shoot; Semiochemicals; Scolytidae; Field study
• ISSN: 0931-2048; 1439-0418
• DOI: 10.1046/j.1439-0418.2000.00448.x

We tested the hypothesis that green leaf volatiles (GLVs) disrupt the response of overwintered pine shoot beetles, Tomicus piniperda (L.) to multiple‐funnel traps baited with the attractive host volatile α‐pinene. A combination of four GLV alcohols, 1‐hexanol (E)‐2‐hexen‐1‐ol (Z)‐2‐hexen‐1‐ol, and (Z)‐3‐hexen‐1‐ol, caused 54 and 36% reduction in the number of pine shoot beetles captured in two separate trapping experiments. Similarly, a combination of the four alcohols plus two GLV aldehydes, hexanal and (E)‐2‐hexenal, caused 38% reduction in the number of pine shoot beetles captured compared with α‐pinene alone. A blend of the two GLV aldehydes was not disruptive. None of the four GLV alcohols nor the two GLV aldehydes were disruptive when tested individually. The finding that the blend of four GLV alcohols reduced attraction of T. piniperda supports the general hypothesis that GLVs common to nonhost angiosperms are disruptive to conifer‐attacking bark beetles (Scolytidae).