Effectiveness of Entomopathogenic Nematodes in an Alginate Gel Formulation Against Lepidopterous Pests

Navon, A.; Nagalakshmi, V.; Levski, Shlomit; Salame, Liora; Glazer, I.

doi:10.1080/0958315021000039914

Cited by 36 publications

(18 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They showed that encapsulated nematodes were able to infect and kill Spodoptera exigua when moisture levels were appropriate (Kaya and Nelsen 1985). Alginate was also successfully used as a surfactant in EPN foliar application (Schroer et al 2005;Navon et al 2002;Navon et al 1998). Pellets of alginate containing the fungus Hirsutella rhossiliensis have been proposed for the control of plant-parasitic nematodes (Lackey et al 1993).…”

Section: Discussionmentioning

confidence: 96%

Capsules containing entomopathogenic nematodes as a Trojan horse approach to control the western corn rootworm

Hiltpold

Hibbard

French³

et al. 2012

Plant Soil

View full text Add to dashboard Cite

Aims The use of entomopathogenic nematodes in the biological control of soil insect pests is hampered by the costly and inadequate application techniques. As a possible solution we evaluated a nematode encapsulation approach that offers effective application and may possibly attract the pest by adding attractants to the capsule shell. Methods Heterorhabditis bacteriophora nematodes, which show high virulence against the maize root pest Diabrotica virgifera virgifera, were encapsulated in a polysaccharide shell derived from the algae Laminaria ssp. Shells of varying thickness and composition were evaluated.Results Nematodes readily survived the encapsulation process and were able, varying with shell thickness and temperature, to break through the shell and subsequently infect hosts. The added attractants and feeding stimulants to the shell attracted the pest larvae as much as maize roots. In field trials, encapsulated H. bacteriophora nematodes were more effective in controlling D. v. virgifera than those sprayed in water over the soil surface, but in these trials the addition of stimulants did not increase the control efficiency. Conclusions The study demonstrates that nematodes can be successfully applied in capsules in the field. Further improvements are needed to make the capsules a cost effective alternative to conventional field application of nematodes.

show abstract

Section: Discussionmentioning

confidence: 96%

Capsules containing entomopathogenic nematodes as a Trojan horse approach to control the western corn rootworm

Hiltpold

Hibbard

French³

et al. 2012

Plant Soil

View full text Add to dashboard Cite

show abstract

“…Glazer et al (1992) improved S. carpocapsae Mexican strain eYcacy against Earias insulana Boisduval (Lepidoptera: Noctuidae), Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) and S. littoralis in canopy applications to cotton plants. If nematode foliar applications were considered, the use of a calcium alginate gel formulation as carrier might improve the eYcacy of S. feltiae (Navon et al 2002). Moreover, S. feltiae Rioja strain has been reported as tolerant to several agrochemical products (Gutiérrez et al 2008), so it might be considered a suitable candidate to develop as agent against pest under organic and integrated management of this species.…”

Section: Discussionmentioning

confidence: 98%

A laboratory study on the activity of Steinernema feltiae (Rhabditida: Steinernematidae) Rioja strain against horticultural insect pests

Campos‐Herrera

Gutiérrez

2009

J Pest Sci

View full text Add to dashboard Cite

The potential of the entomopathogenic nematode Steinernema feltiae (Filipjev) (Rhabditida: Steinernematidae) Rioja strain was assessed under laboratory conditions. Last instar larvae of Leptinotarsa decemlineata Say (Coleptera: Chrysomelidae), Spodoptera littoralis Boisdouval (Lepidoptera: Noctuidae) and Trichoplusia ni Hübner (Lepidoptera: Noctuidae) were exposed to infective juveniles (IJs) under laboratory conditions. Larval mortality, days to larval death, infection cycle length, and reproductive potential were recorded. EYcacy was assessed performing dose-response experiments. The results indicate that control of L. decemlineata with S. feltiae Rioja strain is not economically proWtable (LC 50 = 99.61 IJs/ cm 2 ), whereas results obtained for T. ni (LC 50 = 0.27 IJs/ cm 2 ) are promising. Due to the life cycle of this insect, the eYcacy needs to be investigated in foliar application studies. The eVects on S. littoralis (LC 50 = 0.69 IJs/cm 2 ) was considered the most suitable for development of the Rioja strain as a biocontrol agent for soil application.

show abstract

“…Appropriate formulation of S. carpocapsae significantly controlled the population of the diamond-back moth, Plutella xylostella L. (Lepidoptera: Plutellidae) on cabbage foliage through prevention of EPN sedimentation in the tankers (Schroer, Ziermann, & Ehlers, 2005) and providing improved environmental conditions, supporting better nematode invasion into the insect host . Greenhouse tests on cotton showed that EPN populations formulated in an alginate gel significantly controlled two lepidopteran pests: Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae) and Helicoverpa armigera Hübner (Lepidoptera: Noctuidae), whereas when applied in water, the EPNs failed to control the pests, resulting in plant defoliation (Navon, Nagalakshmi, Levski, Salame, & Glazer, 2002).…”

Section: Development Of Release Methods and Formulationsmentioning

confidence: 99%

Prospects in the Application Technology and Formulation of Entomopathogenic Nematodes for Biological Control of Insect Pests

Hiltpold

2015

Nematode Pathogenesis of Insects and Other Pests

View full text Add to dashboard Cite

Efficient application of the most suitable entomopathogenic nematode (EPN) species and/or population is pivotal to successful biological control strategies. Prior to the release of EPNs, particular attention should therefore be paid to the selection of the appropriate species or population of EPN to optimize their efficacy under given conditions. Additionally, appropriate timing of EPN release and the use of optimal equipment will result in successful biological control programs. Both biotic and abiotic factors influencing EPN success are then to be taken into account when planning to implement EPN pest control programs (also discussed in Chap. 9 of this volume). This chapter reviews the latest knowledge and ideas in EPN release methods and the ways of improving their effectiveness in controlling target insect pests. Prospects for integrated approaches are also discussed.

show abstract

Effectiveness of Entomopathogenic Nematodes in an Alginate Gel Formulation Against Lepidopterous Pests

Cited by 36 publications

References 9 publications

Capsules containing entomopathogenic nematodes as a Trojan horse approach to control the western corn rootworm

Capsules containing entomopathogenic nematodes as a Trojan horse approach to control the western corn rootworm

A laboratory study on the activity of Steinernema feltiae (Rhabditida: Steinernematidae) Rioja strain against horticultural insect pests

Prospects in the Application Technology and Formulation of Entomopathogenic Nematodes for Biological Control of Insect Pests

Contact Info

Product

Resources

About