Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.1999.1497.1500Balaninus nucum L. (Coleoptera: Curculionidae) and its Damage to Hazelnut]]>SezenKazim ErturkOmer DemirbagZihni 4199924The hazelnut beetle (Coleoptera: Curculionidae, Balaninus nucum L.) found in many regions of the world. In order to logical control of this pest, it is necessary to determine the biology and form of its damage. In this study, the biology damage caused by B. nucum were investigated on larvae and adults collected from the coast of Trabzon province in period of 1996-1998. In the end of the present investigation, the wing (10±0.8 mm for females, 9.3 ± 0.3 mm for males) and rostrum length 0.3 ± 0.4 mm for females. 3.8 ± 0.2 mm for males) of the adults, sex ratio (1/1), the dimensions of eggs (0.795 ± 0.14, 0.525 ± 0.11 mm), and instars of larvae (512.5 ± 15; 800 ± 8; 1005 ± 10; and 1295 ± 6 μm in diameter) were detarmined. Also, the appearance of the damage caused by the insect was observed.]]>AliNiazee, M.T.,199843395419Barrios, G., J. Maero, A. Torrell and A. Virgili,1987Balaninus nucurn L. in Haz trees.]]>123333Gibson, L.P.,1985Curculia spp. of Eastern united states and caned (Coleoptera: Curculionidae).]]>87554563Paparatti, B.,1990Balaninus nucum L. (Coleprter curculionidae). Captures of adults and infestati analysis carried out in the area of lake Vico.]]>1393112Pavlenko, F.A. and A.F. Gorbunov,1985704851Piskornik, Z.,1992Corylus avellana L.) to the hazelnut weevil (Curculio nucum L., Coleoptera, Curculionidae).]]>317163170Pucci, C.,1992Balaninus nucum L.(Col., Curculionidae) noxious to the hazel (Corylus avellana L.) in Northern Latium (Central Italy).]]>114516Sezen, K. and Z. Demirbag,1999Balaninus nucum L.).]]>348589Tabamaishvili, L.E.,19885128131Tabamaishvili, L.E.,19905119125Ural, I., M. Ilk and A. Kurt,1973135556Yemen, M., K. Sezen and Z. Demirbag,1999Balaninus nucum (Hazelnut Beetle, Coleoptera) and Euproctis chrysorrhoea (Lepidoptera: Lymantriidae).]]>2617618Maeso, J., A. Torell and G. Barrios,1988Curculio nucum L.).]]>15435