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Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/9686

Title: Factors Affecting the Efficiency of Pheromone Traps Against Triboliun castaneum Herbst
Authors: Alfehade, A. A.
Y. N. Aldryhim
Issue Date: 1997
Publisher: Agric. Res. Center, King Saud Univ
Abstract: This study was conducted in the laboratories of Department of Plant Protection from 25/4/1994 to 3/4/1996 to investigate some factors that may affect the efficiency of pheromone traps in attracting Tribolium castaneum. Cylindrical polyethylene containers (20cm in diameter and 120 cm in height) each filled with 23 kg of wheat grain were used. Thirty adults of T. castaneum were released in each container. A pheromone probe trap, containing aggregation pheromone, was inserted 10 cm deep from the upper surface of wheat grain. Trapped beetles were counted and removed after 24,72 and 120 hours. The results revealed that there is no significant difference in trapped beetles when the pheromone traps were situated at 10 or 20 cm deep. Increasing the depth of pheromone trap to 30 cm caused a reduction in the number of trapped beetles. Neither the age of the pheromone nor age of adult beetles affect the efficiency of pheromone traps. The wheat variety affected the efficiency of traps. More beetles were captured when soft wheat was used in comparison to hard wheat. The percentage of trapped beetles decreased when temperature was raised from 20 to 30oC. Percentage of trapped beetles was decreased as percentage of dockage content increased. Increasing beetles density from 30 to 60 insects per container had no effect on the rate of trapped beetles. However, decreasing beetle density from 30 to 10 insects per container caused an increasing in the percentage of trapped beetles.
URI: http://hdl.handle.net/123456789/9686
Appears in Collections:College of Foods And Agricultural Science

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