The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach

Schumann M, Patel A, Vemmer M, Vidal S (2013)
Pest Management Science 70(4): 642-650.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
BACKGROUND: Western corn rootworm larvae use CO2 to locate maize roots. However, the importance of CO2 as a specific orientation cue close to maize roots has not been investigated unequivocally. This study aimed at elucidating the effect of CO2-emitting capsules in combination with a soil insecticide (Tefluthrin=attract and kill) within the root system.We hypothesized that the capsules would result in aggregation of the larvae at the soil insecticide, thus increasing its efficacy. A nondestructive observation device was used to study larval distribution and behaviour. RESULTS: Spatial analysis of distance indices (SADIE) revealed aggregation of the larvae around the capsules in an attractand-kill treatment after 4 h, which was not found with the conventional treatment without the capsules. However, larval mortality did not differ between treatments. CONCLUSION: CO2 is aweak attractant for western corn rootworm larvae within the root system. Consequently, an attract-and-kill strategy based on a CO2 product will not contribute to better control compared with conventional Tefluthrin applications. Host-specific compounds, combined with a CO2 source, should be used to target more larvae, making attract and kill a feasible management option against this pest.
Stichworte
Diabrotica virgifera virgifera; orientation cue; root herbivore; Tefluthrin
Erscheinungsjahr
2013
Zeitschriftentitel
Pest Management Science
Band
70
Ausgabe
4
Seite(n)
642-650
ISSN
1526-498X
Page URI
https://pub.uni-bielefeld.de/record/2931935

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Schumann M, Patel A, Vemmer M, Vidal S. The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach. Pest Management Science. 2013;70(4):642-650.
Schumann, M., Patel, A., Vemmer, M., & Vidal, S. (2013). The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach. Pest Management Science, 70(4), 642-650. doi:10.1002/ps.3602
Schumann, M., Patel, A., Vemmer, M., and Vidal, S. (2013). The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach. Pest Management Science 70, 642-650.
Schumann, M., et al., 2013. The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach. Pest Management Science, 70(4), p 642-650.
M. Schumann, et al., “The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach”, Pest Management Science, vol. 70, 2013, pp. 642-650.
Schumann, M., Patel, A., Vemmer, M., Vidal, S.: The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach. Pest Management Science. 70, 642-650 (2013).
Schumann, Mario, Patel, Anant, Vemmer, Marina, and Vidal, Stefan. “The role of carbon dioxide as an orientation cue for western corn rootworm larvae within the maize root system: implications for an attract-and-kill approach”. Pest Management Science 70.4 (2013): 642-650.
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