Status of entomopathogenic nematodes and their symbiotic bacteria from selected countries or regions of the world

Kaya, Harry K.; Aguillera, Marineide M.; Alumai, Alfred; Choo, Ho Yul; Torre, Mayra de la; Fodor, Anna; Ganguly, Sudershan; Hazır, Selçuk; Lakatos, T.; Pye, Albert E.; Wilson, Michael J.; Yamanaka, Satoshi; Yang, Hongli; Ehlers, Ralf‐Udo

doi:10.1016/j.biocontrol.2005.11.004

Cited by 194 publications

(124 citation statements)

References 53 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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“…At present, there are about a dozen of EPN species that are available commercially as biocontrol agents for various insect pests. By and large, most of these commercial EPNs target the high-value crop pests, either in North America or European countries, and a few such products are also being used in Korea (Kaya et al 2006). Many studies have demonstrated that the native species/ isolates of EPNs, that are adapted to local environmental conditions, are especially good biocontrol agents for local insect pests (Koppenhöfer and Kaya 1999).…”

Section: Introductionmentioning

confidence: 99%

Effects of storage temperature on survival and infectivity of three indigenous entomopathogenic nematodes strains (Steinernematidae and Heterorhabditidae) from Meghalaya, India

Lalramliana

Yadav

2015

J Parasit Dis

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Three locally isolated strains of entomopathogenic nematodes (EPNs), viz. Heterorhabditis indica, Steinernema thermophilum and Steinernema glaseri, from Meghalaya, India were characterized in terms of storage temperature and survival and infectivity of their infective juveniles (IJs). The survival and infectivity of nematode IJs was studied at, 5 ± 2 and 25 ± 2°C, for a period of 120 days, using deionized water as storage medium. The viability of nematode IJs was checked by mobility criterion at different storage periods, while the infectivity of nematode IJs was ascertained on the basis of establishment of IJs, using Galleria mellonella larva mortality tests in petridishes. The results of this study revealed that storage temperature markedly affects the survival as well as the establishment of nematode IJs of the three EPN species. At 5°C, comparatively higher rate of IJ's survival (i.e. 74-86 %) was observed for 15 days of storage, but the same reduced drastically to 28-32 % after 30 days of storage for H. indica and S. thermophilum. On the other hand, at 25°C, the survival of nematode IJs was observed till 120 days for all the three studied EPNs. In case of S. thermophilum and S. glaseri, higher rate of IJs survival ([75 %) was observed respectively at 15 and 30 days of observation. The study also showed that the establishment of IJs of the three EPN species declines with increase in storage periods, at both the test temperatures. In general, the nematodes stored at 25°C showed comparatively better establishment than those stored at 5°C. Among the three EPN studied, the establishment of S. glaseri was comparatively better than the rest of the species at both the temperatures and for different storage durations. In conclusion, our study adds further valuable information about the effect of storage temperature on survival and infectivity of three indigenous EPN species of Meghalaya, India which appears to be promising biocontrol agents of local insect pests.

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“…They can actively search for their hosts in the soil and can be easily mass-produced using conventional fermentation technology (Grewal et al 2002). They are increasingly used to control insect crop pests in different parts of the world (Kaya et al 2006). In comparison with common chemical insecticides, however, the cost of EPN remains too high for the average Chinese grower.…”

Section: Introductionmentioning

confidence: 99%

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

Yan

Moens

Han³

et al. 2012

J Plant Dis Prot

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Combining environmentally friendly insecticides with entomopathogenic nematodes may constitute an effective alternative to conventional chemical control of many insect pests. The objective of this laboratory study was to evaluate the effects of selected insecticides which are commonly used for pest control in vegetables in China on osmotically treated and untreated infective juveniles of Steinernema carpocapsae strain All. The insecticides azadirachtin, chlorpyrifos, cypermethrin, fipronil, imidacloprid, malathion, thiamethoxam and chlorantraniliprole-thiamethoxam had no adverse effects on nematode survival and infectivity. In contrast, bisultap, emamectin benzoate, phoxim and rotenone proved harmful to S. carpocapsae All mainly by reducing infectivity of the infective juveniles to larvae of the greater wax moth, Galleria mellonella. Osmotic induction is a promising way to induce entomopathogenic nematodes into partial anhydrobiosis and thus increase environmental stress tolerance of the nematodes as well as their shelf life after production. The present results showed that osmotic treatment did not adversely affect fitness of the nematode in terms of its susceptibility to insecticides and even increased its tolerance to chlorpyrifos and rotenone. The results of this laboratory study indicate that several of the tested insecticides can be safely combined with S. carpocapsae All within an integrated pest management approach.

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Status of entomopathogenic nematodes and their symbiotic bacteria from selected countries or regions of the world

Cited by 194 publications

References 53 publications

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

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

Effects of storage temperature on survival and infectivity of three indigenous entomopathogenic nematodes strains (Steinernematidae and Heterorhabditidae) from Meghalaya, India

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

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