Field bioassays of synthetic pheromones and host monoterpenes for Conophthorus coniperda (Coleoptera: Scolytidae)

Four major monoterpenes, (+/-)-alpha-pinene, 1(S)-(-)-beta-pinene, (R)-(+)-limonene, and myrcene are found in the cones of eastern white pines, Pinus strobus L. Mixtures of these, as well as, alpha-pinene or beta-pinene alone, increased catches of male white pine cone bettles, Conophthorus coniperda...

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Bibliographic Details
Published inEnvironmental entomology Vol. 27; no. 2
Main Authors De Groot, P. (Canadian Forest Service, Sault Ste. Marie, ON, Canada.), DeBarr, G.L, Birgersson, G
Format Journal Article
LanguageEnglish
Published 01.04.1998
Subjects
ACETATES
ALPHA-PINENE
ATTRACTANTS
BAITS
BETA-PINENE
BORNYL ACETATE
CONE OILS
CONES
CONOPHTHORIN
CONOPHTHORUS
INSECT ATTRACTANTS
LIMONENE
MONOTERPENES
MYRCENE
MYRTENOL
NORTH CAROLINA
OHIO
ONTARIO
PEST INSECTS
PINENE
PINOCARVEOL
PINUS STROBUS
PITYOL
PLANT OILS
SEEDS
SEX PHEROMONES
TRAPS
VIRGINIA
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Summary:Four major monoterpenes, (+/-)-alpha-pinene, 1(S)-(-)-beta-pinene, (R)-(+)-limonene, and myrcene are found in the cones of eastern white pines, Pinus strobus L. Mixtures of these, as well as, alpha-pinene or beta-pinene alone, increased catches of male white pine cone bettles, Conophthorus coniperda (Schwartz), in traps baited with the female sex pheromone, (+/-)-trans-pityol. The monoterpenes by themselves as mixtures or individually (alpha-pinene, beta-pinene) were not attractants for males or females. Traps baited with (+/-)-trans-pityol and alpha-pinene caught as many, or significantly more beetles than those baited with pityol and a four monoterpene mixture (1:1:1:1) used in seed orchards in North Carolina, Ohio, and Virginia. Three beetle-produced compounds, conophthorin, trans-pinocarveol, and myrtenol did not enhance catches of males or females in (+/-)-trans-pityolbaited traps. Racemic E-(+/-)-conophthorin, E-(-)-conophthorin, and E-(+)-conophthorin significantly reduced catches of males in traps baited with (+/-)-trans-pityol alone. Female C. coniperda were not attracted to any of the host- or beetle-produced compounds tested. The study demonstrated that traps with baits releasing (+/-)-trans-pityol at about 1 mg/wk with (+/-)-alpha-pinene (98% pure) are potentially valuable tools for C. coniperda pest management. Baited traps can be used to monitor C. coniperda populations or possibly to reduce seed losses in a beetle trap-out control strategy
Bibliography:F60
K01
H10
1997089728
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/27.2.382