Table 1 Release rates of volatiles (ug/h) from plant materials (leaves and bark of nonhosts mountain ash, Sorbus aucuparia; grass, Deschampsia flexuosa; raspberry, Rubus idaeus; and alder buckthorn, Frangula alnus; used in the field test of Pityogenes bidentatus inhibition to aggregation pheromone (9 - 12 May 2001, Fig.1). The volatiles were collected on Porapak Q and identified by GC/MSDa | |||||
Compound | Mountain ash: S. aucuparia | Grass: D. flexuosa | Raspberry: R. idaeus | Alder Buckthorn: F. alnus | |
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- | Leaves | Bark | - | Leaves | Bark |
a-Pinene | 0.15 | 0.1 | 0.3 | 0.05 | - |
Camphene | -0.08 | - | - | - | - |
B-Pinene | - | - | 0.06 | -- | - |
3-Carene | - | - | 0.09 | - | - |
a-Ocimene | 0.06 | - | - | - | - |
B-Ocimene | 1.4 | - | - | - | - |
(E)-4,8-Dimethyl-1,3,7-nonatriene | 0.6 | - | - | - | - |
Pentyl acetate | - | - | 0.07 | - | - |
Z-2-Pentenyl acetate | - | - | 0.2 | - | - |
Hexyl acetate | - | - | 1.3 | - | - |
(Z)-3-Hexenyl acetate | 0.2 | - | 42 | 0.2 | - |
(E)-2-Hexenyl acetate | - | - | 0.5 | - | - |
6-Methyl-5-hepten-2-one | - | - | 0.04 | - | - |
(Z)-3-Hexenyl butanoate | 0.04 | - | - | - | - |
1-Hexanol | - | 0.06 | 0.1 | - | - |
(Z)-3-Hexen-1-ol | - | - | 2.8 | - | - |
1-Octen-3-ol | - | - | 0.09 | - | - |
Isopentyl proprionate | - | - | 0.1 | - | - |
3-Ethyl-3-pentanol | - | - | - | 0.05 | 0.07 |
Nonanal | - | - | - | - | 0.05 |
Benzaldehyde | 0.07 | 0.9 | - | - | - |
Benzyl alcohol | - | 0.09 | - | - | - |
Linalool | 0.7 | - | - | - | - |
B-Bourbonen | 0.07 | - | - | - | - |
B-Caryophelene | 0.2 | - | - | - | - |
a-Cubebene | 0.1 | - | - | - | - |
B-Cubebene | 1.0 | - | - | - | - |
a-Farnesene | 0.5 | - | - | - | - |
Methyl salicylate | 0.4 | - | - | - | - |
J.A. Byers1, Q.-H. Zhang Department of Crop Science Swedish University of Agricultural Sciences 230 53 Alnarp, Sweden G. Birgersson Chemical Ecology Göteborg University 405 30 Göteborg, Sweden Present addresses: 1J.A. Byers, Western Cotton Research Laboratory, USDA-ARS, 4135 E Broadway Road, Phoenix, AZ 85040, USA Q.-H. Zhang, Chemicals Affecting Insect Behavior Laboratory, USDA-ARS, BARC-West, B-007, 10300 Baltimore Avenue, Beltsville, MD 20705, USA G. Birgersson, Chemical Ecology and Toxicology, Lund University, 223 62 Lund, Sweden |
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