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Pheromones For Sustainable Control Of Lepidopterous Pests In Olive Farms In Egypt | 10347
ISSN: 2157-7625

Journal of Ecosystem & Ecography
Open Access

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Pheromones for sustainable control of lepidopterous pests in olive farms in Egypt

2nd International Conference on Biodiversity & Sustainable Energy Development

Esmat Hegazi, Fredrik Schlyter, Wedad Khafagi, Maria Konstantopoulou and E. Agamy

Accepted Abstracts: J Ecosys Ecograph

DOI: 10.4172/2157-7625.S1.014

Abstract
Prays oleae Bern, the olive moth (OM), Palpita unionalis Hub., the jasmine moth (JM) and the leopard moth, Zeuzera pyrina L. (ZP) are the most important lepidopterous pests in olive orchards in Egypt, They cause direct yield loss by lowering tree growth, fruit set and fruit/oil quality. The sex pheromones of OM [(Z)-7-tetradecenal)] , JM E-11-hexadecenyl acetate and E-11- hexadecenal, and ZP (E,Z)-2,13-octadecenyl acetate were used for monitoring (all), mating disruption (MD) (all), and mass trapping (ZP). The study shows that trapping location and fruit bearing year are characteristics that strongly affect the timing of the control measures. Inclusion of photostablizers into the pheromone-clay complex of OM and JM improved substantially the release rate and maintained adequate level of pheromone. Fruit yield from trees where sex pheromone had been applied increased significantly compared to control ones . Application of MD in ZP plots over two consecutive years progressively reduced the number of active galleries/tree in the third year where no sex pheromone was applied. Mating disruption shows promising for suppressing ZP infestation in olives. Yield from trees in mass-trapping fields was significantly increased in comparison to control trees. The combination of light and sex pheromone was optimally attractive to ZP moths. The study strongly recommends the use of mass-trapping method instead of pesticides against the ZP moths, not only to control them but also to mass-trap and monitor other lepidopterous pests of olive trees.
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