Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Advances in Biological Control of Locusts and Grasshoppers in Mexico

Ludivina Barrientos-Lozano, Víctor M. Hernández-Velázquez, Richard J. Milner and David M. Hunter
Journal of Orthoptera Research
Vol. 11, No. 1 (2002), pp. 77-82
Published by: Orthopterists' Society
Stable URL: http://www.jstor.org/stable/3503664
Page Count: 6
  • Read Online (Free)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Advances in Biological Control of Locusts and Grasshoppers in Mexico
Preview not available

Abstract

A project to develop a biological control strategy for locusts and grasshoppers is being conducted in Mexico. Major activities include: surveys of entomopathogenic fungi, laboratory screening of isolates, testing of methods for mass production, and formulation and field evaluation of virulent strains. The Centro Nacional de Referencia de Control Biológico (CNRCB) has, in its entomopathogen collection, 40 isolates of Metarhizium spp. obtained from the Central American locust (Schistocerca piceifrons piceifrons). The isolates MaaPL16, MaaPL25 and MaPL40 are among the most virulent. A comparative analysis on Random Amplified Polymorphic DNA patterns between two Mexican isolates of Metarhizium, MaPL40 and MaPL32, and an Australian isolate of Metarhizum anisopliae var. acridum (FI-985), showed that the Mexican isolates and the Australian isolate have similar DNA fingerprints, suggesting they may belong to the same variety. Field trials using oil formulations of the MaPL40 and MaPL32 isolates against hopper bands of S. piceifrons piceifrons, applied at a rate of 50g of conidia in oil, 1 l ha-1, provided >90% reduction in the hopper bands 10 d after treatment. Comparative studies between the Mexican and the Australian isolates were conducted over a range of temperatures: results are reported in detail.

Page Thumbnails

  • Thumbnail: Page 
[77]
    [77]
  • Thumbnail: Page 
78
    78
  • Thumbnail: Page 
79
    79
  • Thumbnail: Page 
80
    80
  • Thumbnail: Page 
81
    81
  • Thumbnail: Page 
82
    82