Corthylus n. sp. (Coleoptera: Scolytidae), pest of alder in río Blanco basin of Colombia.
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In alder, Alnus acuminata HBK., plantations of the río Blanco basin, near Manizales, caldas, the attack of an insect that bores into the trunk and branches of these trees was recently detected. The insect makes holes and galleries especially in the trunk. This damage is associated with ambrosia fungí that cause wood rot and death of the tree. This work describes the biological stages, the damage, and the fungi associated with the borer especially after examination of trees with dry branches and poor foliage. lsolation of the fungus was made with samples obtained from the interior of the galleries and from lesions on the tree, including pathogenicity tests in the greenhouse. The insect was identified by Dr. Stephen L. Wood identified as a new species of Corthylus (Coleoptera: Scolytidae). The fungi associated with the interior of the galleries were identified as Fusarium solani, Fusarium sp.. Verticillium sp. and a yeast similar to Pichia sp. Fusarium solani and Ceratocystis sp. were found in the lesion caused by the insect. Results showed that Corthylus n. sp., has a symbiotic association with several ambrosia fungi and one yeast. These fungi and yeast make the wood available to the insect, and this allows invasion of these organisms, finally causing the death of the tree. Additionally, the insect contributes to the dispersal of the fungí in the alder plantations. The pathogenicity tests with Ceratocystis sp., F. solani, and Fusarium sp.. using trees of five months and four years oíd. were positive, showing the establishment and progression of the lesion in the inoculated stem, reproducing the same symptoms observed in the field.
ARGUEDAS, M.; HILJE, L.; QUlROS, L.; CHAVERRI, P.; SCORZA, F.; ARAYA, C. 1997. Catálogo de plagas y enfermedades forestales en Costa Rica. Segunda edición. Programa Interinstitucional de Protección Forestal PIPROF, Cartago, 92 p.
BARNETT, H. L; HUNTER,B. B. 1998.lIIustrated genera of imperfect fungi. 4 ed. The American Phytopathological Society. St. Paul, APS Press, 218 p.
BATRA, L. R. 1963. Ecology of ambrosia fungi and their dissemination by beetles. Trans. Kansas Acad. Sci. 66: 213-236.
BEAVER, R. A. 1989. Insect-fungus relationships in the bark and ambrosia beetles. En: Wilding, N.; Collins N. M.; Hammond P. M.; Webber J. F. (eds.) Insect – Fungus interactions. Academic Press, New York, Chap. 5, p. 121-143.
BONELLO, P.; MCNEE, W. R.; STORER, A. J.; WOOD, D. L.; GORDON, T. L. 2001. The role of olfactory stimuli in the location of weakened hosts by twig-infesting Pityophthorus sp. Ecological Entomology 26 ( 1): 8-15.
BUSTILLO, A. E.; VILLEGAS, M. C. 1986a. El picudito del aliso Bothynodontes sp. (Coleoptera: Curculionidae) nueva plaga de forestales en Caldas, Centro de Entomología Forestal, Manizales. Apuntes Entomológicos No. 02, 3 p.
BUSTILLO, A. E.; VILLEGAS, M. C. 1986b. Recomendaciones para la producción masiva de Telenomus atsophilae en huevos de Oxydia trychiata. Centro de Entomología Forestal, Manizales. Apuntes Entornológicos No. 03, 5 p.
CIBRIANT., D.; MÉNDEZ M. J. T.; CAMPOS B., R.; YATES III,H.O.; FLORES L., J. E. 1995. Insectos forestales de México. México, Universidad Autónoma de Chapingo, p. 382.
DEL VALLE, J. l.; GONZALEZ, H. 1988. Rendimiento y crecimiento del cerezo (Alnus jorullensis) en la región central andina, Colombia. Revista Facultad Nacional de Agronomía. Medellín. 41 (1): 61-90.
FINNEGAN, R.J. 1967. Notes on the biology of the pitted ambrosia beetle, Corthylus puntatissimus (Coleoptera: Scolytidae). In Ontario and Quebec. Can. Entomol. 99: 49-54.
FRANCKE-GROSSMANN, H. 1963. Sorne new aspects in forest entomology. Ann. Rev. Entomol. 8: 415-438.
FURNISS, M. M.; WOO, J. Y.; DEYRUP, M. A.; ATKlNSON, T. H. 1987. Prothoracic rnycangium on pine-infesting Pityoborus sp. (Coleoptera: Scolytidae). Ann. Entornol. SocoAm. 80: 692-696.
GIESE, R. L. 1967. The columbian timber beetle, Corthylus columbianus (Coleoptera: Scolytidae). V. A description of the mycetangia. Can. Entornol. 99: 5458.
GORDON, T. L.; STORER, A. J.; WOOD, D. L. 2001. The pitch canker epidemic in California. Plant Diseases 85 (1 1):11281139.
HANLlN, R. T. 1990 IIlustrated genera of ascomycetes. The American Phytopathological Society, APS Press. 263 p.
KABIR, A. K. M. F.; GIESE, R. L. 1966a. The columbian timber beetle, Corthylus columbianus (Coleoptera: Scolytidae). 1. Biology of the beetle. Ann. Entornol. Soco Amer. 59 (5): 883-893.
KABIR, A. K. M. F.; GIESE, R. L. 1966b. The columbian timber beetle, Corthylus columbianus (Coleoptera: Scolytidae). II. Fungi and staining associated with the beetle in soft maple. Ann. Entornol. Soco Amer. 59 (5): 894-902.
KROKENE, P.; SOLHEIM, H. 1998. Pathogenicity of four blue-stain fungi associated with aggressive and nonaggressive bark beetles. Norwegian Forest Research Institute, The American Phytopathological Society, Phytopathology 88: 39-44.
MORENO B., H.; BLANDON.T. E. 2002. Insectos dañinos asociados a plantaciones de roble (Tabebuia rosae) y aliso (Alnus acuminata) en los departamentos de Magdalena, Córdoba y Caldas. Boletín de protección forestal plagas/control biológico. Conif, Bogotá, p. 28-32.
MORSE.A.; BLANCHETTE, R. 2002. Etiology of red stain in boxelder Acer negundo. Department of plant pathology, University of Minnesota, St. Paul, Plant Management Network, 17 september, 2002.
MUÑOZ, V. M. 1971. Apuntes sobre generalidades y manejo de plantación de Alnus jorullensis H. B. K. Informe presentado al III Foro de Corporaciones Forestales Manizales, Colombia, Septiembre 22-26. p.5-6.
POSADA O., L. 1989. Lista de insectos dañinos y otras plagas en Colombia. Instituto Colombiano Agropecuario ICA, Bogotá, Boletín técnico No. 43, 662 p.
SIX, D. L.; PAINE, T. D. 1996. A technique for the introduction of fungi to bark beetle mycangia. Journal of Entomological Science 31: 466-468.
WINGFIELD, M.; SEIFERT, K.; WEBBER, J. 1993. Ceratocystis and Ophiostoma: Taxonomy, ecology and pathogenicity. The American Phytopathological Society, Minnesota, 293 p.
WOOD, S. L.; STEVENS, G. C. LEZAMA, H. J. 199 l. Los Scolytidae de Costa Rica: Clave de géneros y de la subfamilia Hylesinae (Coleoptera). Revista de Biología Tropical 39: 125148.
WOOD, S. L.; STEVENS, G. C.; LEZAMA; H. J. 1992. Los Scolytidae (Coleoptera) de Costa Rica: Clave de la subfamilia Scolytinae, Tribu Corthylini. Revista de Biología Tropical 40: 247-286.
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