SOME FACTORS INFLUENCING THE PERFORMANCE OF PHEROMONE TRAPS FOR ORIENTAL FRUIT MOTH IN AUSTRALIA
- 1 September 1977
- journal article
- research article
- Published by Wiley in Entomologia Experimentalis et Applicata
- Vol. 22 (2) , 171-182
- https://doi.org/10.1111/j.1570-7458.1977.tb02704.x
Abstract
Catches of oriental fruit moth males, Grapholitha molesta (Busck), at traps baited with (Z)‐8‐dodecenyl acetate were not greatly influenced by design. Males were equally attracted to polyethylene dispensers containing 1–1000μg of the pheromone. There was no evidence that small amounts of the E isomer produced significant increases in catch at pheromone sources, but reductions were apparent when the level of this isomer exceeded 23%. Synergistic effects resulted from the addition of (Z‐8‐dodecenyl alcohol to the pheromone, and captures were also enhanced when dodecyl alcohol was used as a modifier. Traps at 2m caught more males than those located at 1m or 4m and this pattern was not altered by tree height. There was evidence that traps cleared daily caught fewer moths than those serviced at longer intervals.RÉSUMÉ: INFLUENCE DE QUELQUES FACTEURS SUR LA PERFORMANCE DE PIEGES A PHEROMONE POUR GRAPHOLITHA MOLESTA (TORDEUSE ORIENTALE DES FRUITS) EN AUSTRALIELes captures de mǎles de la Tordeuse orientale des fruits (Grapholitha molesta) par des pièges attractifs à base de (Z)‐8‐dodecenyl acetate sont peu influencées par le type de dispositif. Les mǎles sont également attirés par des containers‐évaporateurs contenant 1–1000μg de phéromones. De petites quantités de l'isomère E n'entrainent pas d'augmentation significative des captures, mais si la teneur en cet isomère excède 23%, alors on observe des réductions des captures. L'addition de (Z)‐8‐dodecenyl alcool à la phéromone a des effets synergiques; les captures étant aussi augmentées quand de l'alcool dodecylique est utilisé comme élément de modification de l'attractif. Les pièges placés à 2 m de hauteur attrapent plus de mǎles que ceux installés à 1 m ou à 4 m et cela s'observe quelle que soit la hauteur de l'arbre. On remarque que les pièges nettoyés chaque jour capturent moins de papillons que ceux révisés à de plus longs intervalles.This publication has 13 references indexed in Scilit:
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