Encapsulation of Steinernematid and Heterorhabditid Nematodes with Calcium Alginate: A New Approach for Insect Control and Other Applications

Kaya, Harry K.; Nelsen, C. E.

doi:10.1093/ee/14.5.572

Cited by 58 publications

(37 citation statements)

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“…The pellets may act as baits (for insect consumptions) or can be geared toward escape of the EPNs at the target site once moisture levels are conducive. Kaya and Nelsen (1985) first developed a calcium alginate encapsulated formulation using H. bacteriophora and S. carpocapsae. The formulation showed promise as long as adequate moisture levels were present to prevent nematode desiccation (Kaya & Nelsen, 1985).…”

Section: Improved Methods Of Applicationmentioning

confidence: 99%

Entomopathogenic Nematode Application Technology

Shapiro‐Ilan

Dolinski

2015

Nematode Pathogenesis of Insects and Other Pests

125

151

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Section: Improved Methods Of Applicationmentioning

confidence: 99%

Entomopathogenic Nematode Application Technology

Shapiro‐Ilan

Dolinski

2015

Nematode Pathogenesis of Insects and Other Pests

125

151

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“…7.1) (e.g., Vemmer & Patel, 2013). Exploiting these properties, Kaya and Nelsen (1985) encapsulated S. feltiae and Heterorhabditis heliothidis Kan, Brooks & Hirschmann (Rhabditida: Heterorhabditidae). Encapsulated EPNs were still able to infect Spodoptera exigua Hübner (Lepidoptera: Noctuidae).…”

Section: Development Of Release Methods and Formulationsmentioning

confidence: 99%

“…Encapsulated EPNs were still able to infect Spodoptera exigua Hübner (Lepidoptera: Noctuidae). There was no detectable reduction in survival nor in infectivity during the encapsulation process (Kaya & Nelsen, 1985). In a similar attempt to improve biological control, beads The surface of the droplet solidifies by ionotropic gelation while Ca 2C reacts with alginate chains to form a three dimensional solid polymer.…”

Section: Development Of Release Methods and Formulationsmentioning

confidence: 99%

“…Nematodes breaking through the capsule shell were still infectious and the polymerization period (in other words, the thickness of the shell) influenced the time needed for the H. bacteriophora to escape the capsule . Following up the idea hypothesized in Kaya and Nelsen (1985), the authors created a blend mimicking the plume of maize roots and blended it with the shell of the capsules to bait the larvae of D. v. virgifera . In the laboratory, the insect larvae were equally attracted towards the capsules and maize seedlings over a distance of ca.…”

Section: Development Of Release Methods and Formulationsmentioning

confidence: 99%

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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

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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.

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“…With the aim of eliminating the disadvantages of releasing the EPNs from the alginate granules with sodium citrate, Kaya and Nelsen (1985) encapsulated the EPNs s. feltiae and H. heliothidis in calcium alginate granules coated by lipid membranes and fed to larvae of spodoptera exigua Hübner. While feeding on the capsules, the larvae released the EPNs.…”

Section: Formulations For Direct Application In the Fieldmentioning

confidence: 99%

Formulation of entomopathogenic nematodes for crop pest control - a review

et al. 2017

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Cruz-Martínez H., Ruiz-Vega J., Matadamas-Ortíz P.T., Cortés-Martínez C.I., Rosas-Diaz J. (2017): Formulation of entomopathogenic nematodes for crop pest control -a review. Plant Protect. Sci., 53: 15-24.The different materials and methods used to develop biopesticides with entomopathogenic nematodes (EPNs) still limit the quality of the final product, reducing field efficacy and complicating application strategies. Therefore, the objective of this review is to identify priority areas to improve the EPN formulation process based on the scientific and technological research developed so far. The results show great progress in the EPN survival time, from 7 days to 180 days, through two types of formulations: water dispersible granules and calcium alginate capsules. Also, EPNs formulated and applied as insect cadavers showed higher efficacy for the pest control than the EPNs applied in an aqueous solution. We consider that the priority areas of research are: automated massive formulation and exploration of new additives with better properties that may lead to increase the infectivity in the field. It is concluded that the study of these aspects requires a systemic approach with greater involvement of the invertebrate physiology and systems modelling disciplines.

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Encapsulation of Steinernematid and Heterorhabditid Nematodes with Calcium Alginate: A New Approach for Insect Control and Other Applications

Cited by 58 publications

References 0 publications

Entomopathogenic Nematode Application Technology

Entomopathogenic Nematode Application Technology

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

Formulation of entomopathogenic nematodes for crop pest control - a review

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