Wood-boring beetles (Coleoptera: Bostrichidae, Curculionidae; Platypodinae and Scolytinae) infesting rubberwood sawn timber in southern Thailand
2011
Kangkamanee, Teerapol | Sittichaya, Wisut | Ngampongsai, Aran | Permkam, Surakrai | Beaver, Roger A.
Species diversity and infestation densities of rubberwood (Hevea brasiliensis Müll. Arg.)-boring beetles at sawmills in southern Thailand were investigated during July 2007 and March 2008. Twenty-two species of wood-boring beetles, nine bostrichids, eight scolytines and five platypodines, were identified. The powder post beetle, Sinoxylon anale Lesne (40%), is the single dominant rubberwood pest in the studied area. Other frequently captured species are Sinoxylon unidentatum (Fabricius) (18%), Heterobostrychus aequalis (Waterhouse) (10%) and Lyctoxylon dentatum Lesne (9%). The Shannon diversity index of rubberwood-boring beetles in the eastern coastal area was significantly (p < 0.01) greater than that in the western coastal area. The infestation density in the dry season was significantly higher than that in the wet season, but there were no significant differences between eastern and western coastal areas.
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