Successes and failures in the use of parasitic nematodes for pest control

Georgis, Ramon; Koppenhöfer, Albrecht M.; Lacey, Lawrence A.; Bélair, Guy; Duncan, Larry W.; Grewal, Parwinder S.; Samish, Michael; Tan, Li; Torr, Peter; Tol, R.W.H.M. van

doi:10.1016/j.biocontrol.2005.11.005

Cited by 354 publications

(239 citation statements)

References 112 publications

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“…As EPNs have outstanding beneficial traits such as high pathogenicity against insects, durable survivability and host-searching ability of the infective third-stage juvenile, reproduction on artificial medium, symbiotic association with entomopathogenic bacteria, and so on (Gaugler, 2002), scientific and commercial interests in EPNs discovered numerous geographic isolates (Hominick, 2002), are still searching for new species/isolates, are developing mass-production and formulation technologies and creating commercial insecticide products composed of EPNs for pest management (Georgis et al, 2006;Kaya et al, 2006). In Japan, a series of intensive research projects for the practical utilization of the EPNs, especially an introduced species, S. carpocapsae (Weiser, 1955), were conducted from the 80s to the 90s (Ishibashi, 1992) and two introduced nematode insecticide products composed of S. carpocapsae and S. glaseri (Steiner, 1929) are being utilized in Japan nowadays.…”

Section: Introductionmentioning

confidence: 99%

Influence of temperature on pathogenicity of some entomopathogenic nematode isolates (Steinernema spp.) from Japan screened for ability to control some noctuid moth larvae

Yoshida¹

2010

Japanese Journal of Nematology

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Influence of temperature on pathogenicity of some entomopathogenic nematode isolates (Steinernema spp.) from Japan screened for ability to control some noctuid moth larvae 1,2Mutsuhiro Yoshida 3, Pathogenicity of indigenous steinernematids against some noctuid larvae was examined to screen candidates in a biological control program. First, 17 isolates from ten species (Steinernema feltiae, S. kraussei, S. kushidai, S. litorale, S. monticolum and five RFLP types) were screened for pathogenicity against the middle instar larvae of Peridoroma saucia, and S. feltiae and S. litorale were selected. Secondly, three isolates of S. feltiae and eight isolates of S. litorale were screened for pathogenicity against the middle instar larvae of Agrotis segetum, and S. feltiae HkEr36 and S. litorale IbKt142 were selected. Both isolates showed high pathogenicity at 25 and below, but reduced pathogenicity at 30 . Therefore, with the addition of a subtropical species S. abbasi collected after the second screening, the screened isolates were compared with an introduced nematode, S. carpocapsae All, for their pathogenicity against the late instar larvae of A. segetum and Spodoptera litura. The isolate S. litorale IbKt142 showed high pathogenicity between 7 and 25 , and caused significantly higher mortality of A. segetum at 7, 10 and 15 and S. litura at 7 and 10 than S. carpocapsae All did. Moreover, S. abbasi OnIr181 caused significantly higher mortality of A. segetum at 30 and 35 and S. litura at 35 than S. carpocapsae All did. Nematol. Res. 40 (2), 27-40 (2010).

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Section: Introductionmentioning

confidence: 99%

Influence of temperature on pathogenicity of some entomopathogenic nematode isolates (Steinernema spp.) from Japan screened for ability to control some noctuid moth larvae

Yoshida¹

2010

Japanese Journal of Nematology

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“…However, estimates of organic acreage reflect more about which practices are not being used than those that are, since certified organic management can vary from simple input substitution to system diversification and use of multiple cultural and biological strategies (Guthman 2000). Some studies have tried to get at the use of ecological practices for pest control through farmer interviews (Shennan et al 2001) or by tracking the sales of biocontrol agents ( Fravel 2005;Georgis et al 2006). Biocontrol agents still account for less than 1% of total agrichemical sales (Fravel 2005) and recent pesticide use reduction in northern Europe is largely attributable to improved forecasting and pesticide management (Finch & Collier 2000).…”

Section: Managing Complexity and Uncertaintymentioning

confidence: 99%

Biotic interactions, ecological knowledge and agriculture

Shennan

2007

Phil. Trans. R. Soc. B

180

126

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This paper discusses biotic interactions in agroecosystems and how they may be manipulated to support crop productivity and environmental health by provision of ecosystem services such as weed, pest and disease management, nutrient cycling and biodiversity conservation. Important elements for understanding biotic interactions include consideration of the effects of diversity, species composition and food web structure on ecosystem processes; the impacts of timing, frequency and intensity of disturbance; and the importance of multitrophic interactions. All of these elements need to be considered at multiple scales that depend in part on the range of the movement of the organisms involved. These issues are first discussed in general, followed by an examination of the application of these concepts in agricultural management. The potential for a greater use of ecological management approaches is high; however, owing to the nature of complex interactions in ecosystems, there is some inherent unpredictability about responses to management interventions under different conditions. Such uncertainty needs to be accommodated in the development of recommendations for farm management. This requires an increased emphasis on the effective synthesis of complex and often apparently contradictory information and on field-based adaptive research, monitoring and social learning by farmer/researcher collaborations.

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“…It is a major pest of stored food products, causing substantial losses to global grain harvests (Rossi et al, 2010). Entomopathogenic nematodes (EPN; Rhabditida: Steinernematidae and Heterorhabditidae) can be used as biological control agents against T. castaneum as they are commercially available (Georgis et al, 2006) and do not infest vertebrates (Bathon, 1996). They are obligate parasites of insects that go through a free-living dauer (infective) juvenile (IJ) stage.…”

Section: Phenoloxidase Assaymentioning

confidence: 99%