Bugworm's native hosts and parasitoids associated at the caldenal

  • Nicolás Alfredo Risi Universidad Nacional de La Pampa - Facultad de Agronomía
  • Martín López Universidad Nacional de La Pampa - Facultad de Agronomía
  • Estela Maris Baudino Universidad Nacional de La Pampa - Facultad de Agronomía

Keywords:

Oiketicus platensis, Parasitoids, Prosopis caldenia, La Pampa

Abstract

Since 2006, we began to observe in the caldén forest of La Pampa province the bagworm presence. For this reason we set as our objectives to study how plants are feeding the O. platensis larvae in the caldén forest and to detect parasitoids that may be affected in the study area. These skills are critical to then implement a strategy for pest management that includes actions to promote the increase of native parasitoids that may biologically control this species pest and protect the Federal Reserve vegetation. The field work was carried out in the Reserva Natural Provincial Parque Luro, located on Ruta Nacional N º 35, km 292 - Toay, Province of La Pampa. This Nature Reserve is a protected area that conserves Caldén Forest at 7600 ha, of which 1600 of them are destined to tourism and recreation. It is located in the phytogeographic region of El Espinal, forest dominated by a legume, the caldén. We collected a total of 1365 bags which were taken to the laboratory for examination. It was noted that 47% were unoccupied, 19% were male and 32% were female bags. New host are cited for O. platensis in a caldén forest in La Pampa province. These hosts are the following native plants: Prosopis caldenia (Burk.) "Caldén", Condalia microphylla Cav. "Piquillín", Jodina rhombifolia (Hook. & Arn.) "Sombra de toro", Schinus fasciculatus var. arenicola (Hauman) F. A. Barkley “Molle”, Aloysia gratissima (Gill. & Hook) "Azahar del monte”. It was not observed recolonization, after one year, in the marked trees. In this work 6 genera of hymenpterous parasitoids were reared either from the bagworms represented by five families of Hymenoptera: Tetrastichus sp. (Hymenoptera: Eulophidae), Chirotica bruchii (Breth, 1904) (Hymenoptera: Ichneumonidae), Conura sp.1 (Hymenoptera: Chalcididae), Conura sp. 2 (Hymenoptera: Chalcididae), Perissocentrus sp. (Hymenoptera: Torymidae) and Chelonus (Hymenoptera: Braconidae). This research provides initial information required that may contribute to the establishment of an Integrated Pest Management Program in the Reserve.

Downloads

Download data is not yet available.

References

Aravena R.O. 1983. Insectos que perjudican a la flora leñosa de la provincia de La Pampa. V Congreso Forestal Argentino, “Zonas árida y semiárida factor de integración del desarrollo forestal”. Santa Rosa. La Pampa. Trabajos técnicos. 2: 4315-4321.

Bentancourt C.M. & I.B. Scatoni. 1999. Guía de Insectos y Ácaros de importancia agrícola y forestal en el Uruguay. Fac. de Agronomía, Universidad de la República Montevideo, Uruguay. 134 p.

Borror D.J., C.A. Triplehorn & N.F. Johnson. 1989. An Introduction to the Study of Insects, 6th Edition. Saunder College Publishing. 875 p.

Brethes J. 1905. Hymenópteros nuevos o poco conocidos. Parásitos del bicho de cesto (Oeceticus platensis Berg,). Anales Mus. Nac. Buenos Aires 3(4): 17-24.

Brethes J. 1917. Consideraciones sobre el parasitismo en el bicho de cesto (Oeceticus platensis Berg,). Anales Soc. Rural Arg. 51: 339-340.

Brugnoni H.C. 1980. Plagas forestales. Zoofitófagos que atacan las principales especies forestales naturales y cultivadas en la República Argentina. Ed. Hemisferio Sur S.A. 216 p.

Casagrande G. & Conti. 1980. Clima. En: Inventario Integrado de los Recursos Naturales de La Provincia de La Pampa. Clima, geomorfología, suelo, vegetación y fauna de vertebrados. (Reedición del Inventario integrado de los recursos naturales de la Prov. de La Pampa 1980 complementada con fauna vertebrados) República Argentina. En soporte electrónico CD.

Davis D.R. 1964. Bagworm Moths of the Western Hemisphere (Lepidoptera: Psychidae). Museum of Natural History. Smithsonian Institution Washington. 248 p.

Florentino D.C. & L. Diodato de Medina. 1991. Breve panorama de las plagas entomológicas forestales argentinas. Inv. Agr. Sist. y Rec. Forestales. N.O. pp. 181-190.

Gibson A.P. 1993. Superfamilies Mymarommatoidea and Chalcidoidea (pp. 570-655). En: Hymenoptera of the World: an identification guide to families (Goulet, H. & J. Huber eds). Research Branch, Agriculture Canada, Ottawa, Canada. 668 p.

Grissell E.E. 1992. A revision of Perissocentrus Crawford (Hymenoptera: Torymidae). J. Hymenoptera Res. 1(1): 91-102.

Krombein K.V., P.D. Hurd Jr., D.R. Smith & B.D. Burks. 1979. Catalog of Hymenoptera in America North of Mexico. Vol I. Smithsonian Institution Press. 1224 p.

Orfila R.N. 1965. Análisis de los problemas nacionales en materia de Sanidad Vegetal. Primera reunión de Programación de Patología Vegetal. Relatos, CNIA, Castelar. (Citado por Saini et al. 1985).

Pastrana J.A. 1978. Las plagas insectiles importantes de los cultivos forestales, p. 528-534. En: Actas del tercer Congreso Forestal Argentino. Buenos Aires, Argentina. 851 p.

Pastrana J.A. 2004. Los lepidópteros Argentinos. Sus plantas hospedadoras y otros sustratos alimenticios. South American Biological Control Laboratory USDA-ARS. Soc. Entom. Arg. pp 334 .

Rhainds M., D.R. Davis & P.W. Price. 2009. Bionomics of Bagworms (Lepidoptera: Psychidae). Ann. Review Entomol. 54: 209-226.

Saini E.D., I. Santoro de Crouzel, A. Enrique de Briano & V. Lasaigües. 1985. Observaciones Bioecológicas sobre el “Bicho de cesto” Oiketicus platensis Berg (Lep. Psychidae). Estudio morfológico en el estado larval. CIRPON Rev. Invest. 3(1-2):15-38.

Schmitz G. 1946. Exploration du Parc National Albert. Fasc. 48. Chalcididae. Institut des Parcs Nat. Congo. Belge. 191 p.

Shaw M.R. & T. Huddleston. 1991. Classification and Biology of Braconid wasps (Hymenoptera: Braconidae).Handbooks for the Identification of British Insects. 7(11): 59-62.

Yu D.S. & K. Horstmann. 1997. A catalogue of world Ichneumonidae (Hymenoptera). Mem. Am. Entom. Inst. 58(1-2): 6. 1558 p.

Published

2018-09-11

How to Cite

Risi, N. A., López, M., & Baudino, E. M. (2018). Bugworm’s native hosts and parasitoids associated at the caldenal. Semiárida, 23(1). Retrieved from https://ojs.unlpam.edu.ar/ojs/index.php/semiarida/article/view/3273

Issue

Section

Notas