SciELO - Scientific Electronic Library Online

 
vol.67 issue3-4Redescription of Colpotrochia flava (Hymenoptera: Ichneumonidae: Metopiinae)First record of cadaverous arthropod fauna in human and animal substrates in San Juan, Argentina author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

  • Have no cited articlesCited by SciELO

Related links

Share


Revista de la Sociedad Entomológica Argentina

Print version ISSN 0373-5680On-line version ISSN 1851-7471

Abstract

LANGE, Carlos E.; BARDI, Christian  and  PLISCHUK, Santiago. Infectivity of Paranosema locustae (Microsporidia) to the 'quebrachera' grasshopper, Tropidacris collaris (Orthoptera: Romaleidae), in the laboratory. Rev. Soc. Entomol. Argent. [online]. 2008, vol.67, n.3-4, pp.151-155. ISSN 0373-5680.

Following the standard procedure of orally inoculating third-instar nymphs with 105 spores each, the infectivity of the microsporidium Paranosema locustae (Canning), a pathogen developed for the long-term control of grasshoppers, to Tropidacris collaris (Stoll), was determined. In recent years, T. collaris has demanded a heavier use of insecticides for its control. The proportion of insects that developed infection was low (38 %; n = 50), the level of spore production was almost nil (only two trace infections), and typical signs or symptoms associated with heavy infections were not observed. Since a high production of infective transmissible units (spores) is normally needed for an infectious disease with predominant horizontal transmission to be able to persist in the population of the host, it is inferred that P. locustae would not be an efficacious alternative for the control of T. collaris.

Keywords : Biocontrol agent; Locust; Microsporidium; Nosema locustae; Pathogen.

        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License