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Flight behaviour ofProstephanus truncatusandTeretrius nigrescensdemonstrated by a cheap and simple pheromone-baited trap designed to segregate catches with time

Authors
Journal
Journal of Stored Products Research
0022-474X
Publisher
Elsevier
Publication Date
Volume
40
Issue
2
Identifiers
DOI: 10.1016/s0022-474x(02)00094-2
Keywords
  • Flight Trapping
  • Flight Behaviour
  • Pheromone Trap

Abstract

Abstract The storage pest Prostephanus truncatus (Horn) (Coleoptera: Histeridae) and its predator Teretrius nigrescens (Lewis) (Coleoptera: Histeridae) are both known to disperse by flight. The pattern of flight activity of the two beetles in Ghana, across 11 months of the year, was investigated using a novel flight trap that separates catch at 3-h intervals. Prostephanus truncatus showed most flight activity around dusk with a smaller peak around dawn. Teretrius nigrescens had a strong diurnal peak. There were considerable differences in catch of both species during the year and when catch was low the peaks in activity were also less distinct.

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