Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms

Humbert P, Vemmer M, Mävers F, Schumann M, Vidal S, Patel A (2017)
Pest Management Science 74(7): 1575-1585.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
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Abstract / Bemerkung
BACKGROUND: Wireworms (Coleoptera: Elateridae) are major insect pests of worldwide relevance. Owing to the progressive phasing-out of chemical insecticides, there is great demand for innovative control options. This study reports on the development of an attract-and-kill co-formulation based on Ca-alginate beads, which release CO2 and contain neem extract as a bioinsecticidal compound. The objectives of this study were to discover: (1) whether neem extract can be immobilized efficiently, (2)whether CO2-releasing Saccharomyces cerevisiae and neem extract are suitable for co-encapsulation, and (3) whether co-encapsulated neem extract affects the attractiveness of CO2-releasing beads towards wireworms. RESULTS: Neem extractwas co-encapsulated togetherwith S. cerevisiae, starch andamyloglucosidase with a high encapsulation efficiency of 98.6% (based onmeasurement of azadirachtin A as themain active ingredient). Even at enhanced concentrations, neemextract allowed growth of S. cerevisiae, and beads containing neem extract exhibited CO2-emission comparable with beads without neem extract. When applied to the soil, the beads established a CO2 gradient of>15 cm. The co-formulation containing neem extract showed no repellent effects and was attractive for wireworms within the first 24 h after exposure. CONCLUSION:Co-encapsulationof S. cerevisiaeandneemextract is a promising approach for the development of attract-and-kill formulations for the control of wireworms. This study offers new options for the application of neem extracts in soil.
Erscheinungsjahr
Zeitschriftentitel
Pest Management Science
Band
74
Ausgabe
7
Seite(n)
1575-1585
ISSN
PUB-ID

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Humbert P, Vemmer M, Mävers F, Schumann M, Vidal S, Patel A. Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms. Pest Management Science. 2017;74(7):1575-1585.
Humbert, P., Vemmer, M., Mävers, F., Schumann, M., Vidal, S., & Patel, A. (2017). Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms. Pest Management Science, 74(7), 1575-1585. doi:10.1002/ps.4842
Humbert, P., Vemmer, M., Mävers, F., Schumann, M., Vidal, S., and Patel, A. (2017). Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms. Pest Management Science 74, 1575-1585.
Humbert, P., et al., 2017. Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms. Pest Management Science, 74(7), p 1575-1585.
P. Humbert, et al., “Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms”, Pest Management Science, vol. 74, 2017, pp. 1575-1585.
Humbert, P., Vemmer, M., Mävers, F., Schumann, M., Vidal, S., Patel, A.: Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms. Pest Management Science. 74, 1575-1585 (2017).
Humbert, Pascal, Vemmer, Marina, Mävers, Frauke, Schumann, Mario, Vidal, Stefan, and Patel, Anant. “Development of an attract-and-kill co-formulation containing Saccharomyces cerevisiae and neem extract attractive towards wireworms”. Pest Management Science 74.7 (2017): 1575-1585.
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2018-10-31T22:16:31Z