Efficacy of Steinernema carpocapsae for control of the lesser peachtree borer, Synanthedon pictipes: Improved aboveground suppression with a novel gel application

Shapiro‐Ilan, David I.; Cottrell, Ted E.; Mizell, Russell F.; Horton, Dan L.; Behle, Robert W.; Dunlap, Christopher A.

doi:10.1016/j.biocontrol.2009.11.009

Cited by 71 publications

(44 citation statements)

References 19 publications

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“…Anti-desiccants are polymers with water swelling capacity and thus provide moisture for a longer period. Shapiro-Ilan et al [18] concluded that nematode treatments followed by application of a sprayable gel such as Barricade can enhance control of the lesser peachtree borer, Synanthedon pictipes and possibly other above ground pests as well.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Hussein¹,

Adel

Gelbič

2011

Open Life Sciences

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The entomopathogenic nematode Steinernema feltiae strain Ustinov Russia was used on potato foliage to control larvae of the Colorado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae). Nematodes were applied in formulations of agar at 4%, 2%, 1% and 0.5% concentrations and compared to a control application of nematodes in water for nematode survival. Agar formulation significantly improved efficacy by increasing nematode survival through reduction in desiccation when compared to water-based formulation. More than 70% of infective juvenile nematodes (IJs) died after being incubated in the highest concentration of agar for 12 h, while only 8% mortality was recorded at the 1% concentration. Suspension of nematodes in 1% agar gel was shown to be efficacious in both laboratory and greenhouse tests for extension of the nematodes’ survival. Agar formulation droplets dried slower than control droplets by 127.8 min. Leptinotarsa decemlineata mortality significantly increased when insects were exposed to infective juvenile nematodes for four hours after application. In conclusion, the agar formulation enhanced nematode survival by providing a suitable environment thereby delaying dryingand increasing the possibility for nematodes to invade their host on the foliage.

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Section: Discussionmentioning

confidence: 99%

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Hussein¹,

Adel

Gelbič

2011

Open Life Sciences

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“…Nematodes were transferred to a fixative of 50% (v/v) aqueous triethanolamine formalin, for 48 h and then placed in 100% triethanolamine formalin before transfer to glycerol for slow evaporation in order to clear the parasites (Seinhorst, 1959). The fixed specimens were used for taxonomic identification following the key of Poinar Junior (1977).…”

Section: Methodsmentioning

confidence: 99%

“…Many investigators have recognized these parasites as potential biological control agents (Poulin, 2012). Results showed that are a safe and effective environmental alternative for controlling pests in crops of economic importance (Duncan et al, 2013;Gumus et al, 2015;Shapiro-Ilan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Nematodes (Mermithidae) parasitizing grasshoppers (Orthoptera: Acrididae) in the Pampean region, Argentina

2017

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This work provides the results of a survey of entomonematodes parasites of grasshoppers in grasslands of the Pampean Region, Argentina. Camino and Stock, 1989. The values of parasitism ranged between 1-12%, and intensity not overcome the number of 5.0 nematodes per larva. The nematodes observed showed specificity, not registering the same species of parasite in more than one host species. The Pampean region constituted an area with high diversity of mermithids where new species could be consider as bioregulator agents of this troublesome insect pests in agricultural areas of Argentina.Keywords: nematodes, Acrididae, pest, agriculture, Argentina. Nematóides (Mermithidae) parasitando gafanhotos (Orthoptera: Acrididae) nos Pampas região, a Argentina ResumoEste trabalho apresenta os resultados de uma pesquisa entomonematode parasitando gafanhotos em pastagens da região pampeana, Argentina. Ninfas de Staurorhectus longicornis Giglio-Tos, Laplatacris dispar Rhen de 1939, Dichroplus elongatus Giglio-Tos, 1894 e Metaleptea brevicornis (L.) (Orthoptera: Acrididae) foram coletados. Mermithidae era a única família registrado com sete espécies: Agamermis decaudata Cobb, Steiner and Christie, 1923, Amphimermis bonaerensis Miralles and Camino, 1983, Amphimermis dichroplusi Camino and Lange, 1997, Amphimermis ronderosi Camino and Lange, 1997, Hexamermis coclhearius Stock and Camino, 1992, Hexamermis ovistriata Stock and Camino, 1992, e Longimermis acridophila Camino and imagem, de 1989. Os valores de parasitismo variou entre 1-12%, e intensidade não superar o número de 5,0 nematóides por larva. Os nemátodos observados demonstraram especificidade, não registar as mesmas espécies de parasita em mais do que uma espécie de hospedeiro. A região pampeana constituída uma área com alta diversidade de mermithids onde novas espécies poderiam ser consideradas como agentes bio-reguladores deste incômodos insetos pragas em áreas agrícolas da Argentina.

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“…Other ways for improving efficacy of EPN applications are related to equipment modification (e.g., nozzles, pumps, spray distribution) for enhanced survival and dispersion (Shapiro-Ilan et al 2006;Brusselman et al 2012). EPN are also used successfully for controlling tree-boring pests, and in such cases the application method can be more sophisticated, using for instance gels and injections, rather than just drenching in the soil around the tree (De altube et al 2008;Dembilio et al 2010;Morton and García Del Pino 2008;El-borai et al 2012;Shapiro-Ilan et al 2010, 2016a, but little is known about dispersal and host-finding in the tree environment (Santhi et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Optimizing the application method of entomopathogenic nematode suspension for biological control of large pine weevil Hylobius abietis

et al. 2017

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Entomopathogenic nematodes (EPNs) are effective against the immature stages of the large pine weevil Hylobius abietis. In three field trials we compared the efficacy of the application method of EPN for weevil suppression below the suggested threshold of 20 weevils per stump: applying the EPN suspension in the top edges of the stumps ('top') vs. drenching the soil around stumps ('standard'). For Steinernema carpocapsae, weevil suppression was below the targeted threshold only when suspension was applied in the standard way (two of the three sites). On the other hand, weevil suppression was provided in all three cases of 'top' application of Heterorhabditis downesi suspension, whereas suppression in 'standard' application was observed in one site. Percentage parasitism of developing weevils in relation to depth and distance help explain EPN movement post-application. Weevil suppression relative to suggested thresholds can be improved by altering the method of EPN application depending on the nematode species.

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Efficacy of Steinernema carpocapsae for control of the lesser peachtree borer, Synanthedon pictipes: Improved aboveground suppression with a novel gel application

Cited by 71 publications

References 19 publications

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Effectiveness of the entomopathogenic nematode Steinernema feltiae in agar gel formulations against larvae of the Colarado potato beetle, Leptinotarsa decemlineata (Say.) (Coleoptera: Chrysomelidae)

Nematodes (Mermithidae) parasitizing grasshoppers (Orthoptera: Acrididae) in the Pampean region, Argentina

Optimizing the application method of entomopathogenic nematode suspension for biological control of large pine weevil Hylobius abietis

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