Attraction of Tomicus piniperda to perforated cylinder traps" releasing attractive host monoterpenes and inhibitory enantiomers of verbenone (V) in Scots pine forest, Sjöbo, southern Sweden. T. piniperda beetles were caught in the outer funnel (while landing) and only one entered a hole in the perforated cylinder. | ||
Chemicals releaseda | Total catch of cylindar traps | |
---|---|---|
Males | Females | |
14 - 20 May 1985 (9 replicates) | ||
Blank | 0 | 0 |
Monoterpenesb | 30 | 29 |
Monoterpenes + (+)-V | 9 | 3 |
Monoterpenes + (-)-V | 0 | 3 |
17 - 29 April 1986 (13 replicates) | ||
Blank | 1 | 0 |
Monoterpenesb | 83 | 65 |
Monoterpenes + (+)-V | 35 | 16 |
Monoterpenes + (-)-V | 19 | 19 |
J. A. BYERS1, B. S. LANNE2, J. LÖFQVIST1 1Department of Animal Ecology, Lund University, SE-223 62 Lund, Sweden Present address: 2Chemical Ecology, Göteborg University, SE-405 30 Göteborg, Sweden |
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