The host and geographical range of the grasshopper pathogen Paranosema (Nosema) locustae revisited

Abstract

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Persistence of Paranosema (Nosema) locustae (Microsporidia: Nosematidae) among grasshopper (Orthoptera: Acrididae) populations in the Inner Mongolia Rangeland, China

“…In this study, persistence of P. locustae in populations of five grasshopper species was investigated. There are, in fact, two additional grasshopper species that are known to be susceptible to P. locustae in the Inner Mongolia Rangeland, Chorthippus fallax and Gomphocerus licenti (Lange 2005). Prevalence of P. locustae in populations of these species fluctuated widely (Wang-Peng Shi, unpublished data).…”

Interaction between Paranosema locustae and Metarhizium anisopliae var. acridum, two pathogens of the desert locust, Schistocerca gregaria under laboratory conditions

“…Nevertheless, concerns about pesticide tolerance, environmental contamination and human safety have enabled researchers to look for alternative methods of control. Such methods include the use of biopesticides based on spores of fungi and microsporidia (Johnson et al, 1992;Johnson and Goettel, 1993;Inglis et al, 1995;Lomer et al, 1999;Lange et al, 2000;Lange, 2005). The LUBILOSA (Lutte Biologique contre les Locusts et Sauteriaux) programme has developed an oil formulation of the entomopathogenic fungus Metarhizium anisopliae var.…”

“…P. locustae, as it is now known, has been shown to infect more than 100 species of the Orthoptera found in North and South America, Africa, Australia, China and India (Lange, 2005). Both laboratory and field studies indicate that younger grasshopper nymphs are more susceptible to P. locustae infections than older nymphs (Henry et al, 1973;Lockwood et al, 1999;Lange et al, 2000).…”

Microsporidia Biological Control Agents and Pathogens of Beneficial Insects

“…The establishment of exotics raises concern over impacts on nontarget organisms, shifts in species assemblages, and other components of the ecosystem. P. locustae has a very broad host range, infecting 122 species of Orthoptera worldwide (Lange 2005(Lange , 2010. After 16 years of monitoring in the Pampas of Argentina, shifts in the relative proportion of grasshopper species were reported but were thought to be part of the inevitable changes to the region as agroecosystems became prevalent (Bardi et al 2012).…”