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Effect of substrate formulation on the efficacy of the pea moth, Cydia nigricana, sex pheromone lures
- Horák, Antonín, Hrdý, Ivan, Konečný, Karel, Vrkoč, Jan
- Entomologia experimentalis et applicata 1989 v.53 no.2 pp. 125-131
- Cydia nigricana, acetates, dispensers, field experimentation, isomerization, males, organic sulfur compounds, peroxides, pheromone traps, rubber, sex pheromones, sulfur
- Field experiments have shown that the activity of (E,E)-8,10-dodecadien-1-yl acetate, the sex pheromone of the pea moth, Cydia nigricana (F.) (Lepidoptera, Tortricidae), is significantly affected by the type of rubber substrate used for the preparation of dispensers. Rubber substrates cured with elemental sulphur or accelerators based on organic sulphur compounds isomerized pea moth pheromone faster than rubber substrates cured by organic peroxides. The degree of isomerization increased during field use and/or storage. Average catches of males were further dependent on the release rate of pheromone from the dispenser. In a 2 × 3 factorial experiment arranged in 6 × 6 Latin square design a statistically highly significant dispenser × dose interaction was demonstrated (P < 0.01).