Studies on The attractiveness of internal synthesized sex pheromone of striped stem borer, Chilo suppressalis Wlk. compared with external one under field condition
2003
Saeb, Hossein | Tabrizian, Mehrdad | Najafi navaee, Iraj | Oskoo, Taraneh
The attractiveness potential of locally-made sex pheromone of striped stem borer, Chilo suppressalis Wlk. (SSB), consisting of (Z)-9-hexadecenal, (Z)-11-hexadecenal, and (Z)-13- octadecenal (in the ratio 1:10:1) was compared with imported one. Doses of o.5, 1 and 2 mg of the pheromones were used in sticky traps in rice fields of Rasht and Sowmaea-sera county during 2001-2002. Analysis of variance showed that there were significant differences between treatments at the 1% level. Mean comparison of treatments at different locations, and generations showed the best at 2 mg dose. Also, renewing sex pheromone rubber septa at different times showed best results on 2 mg dose. The results showed that the efficiency of the sex pheromone decreased significantly with increasing storage period and maintenance condition. Usning fresh pheromones in a 20-day interval are suggested for monitoring and forecasting studies of the stem borer’s population. Therefore, considering good number of moth catches and easier and cheaper production of locally-made pheromone compared with the imported one it could be a useful component of the pest monitoring and control in integrated pest management(IPM) program.
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