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| DOI: | 10.1093/jee/tov002 |
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| Web URL(s): | https://academic.oup.com/jee/article/108/2/566/778107/Effect-of-European-Chafer-Larvae-Coleoptera
Last checked: 02/28/2017
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Renkema, J. M.;
Difonzo, C. D.;
Smith, J. L.;
Schaafsma, A. W. |
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| Author Affiliation: | Renkema: School of Environmental Sciences, University of Guelph, Guelph; Smith and Schaafsma: Department of Plant Agriculture, Ridgetown Campus, University of Guelph, Ridgetown, ON, Canada; Difonzo: Department of Entomology, Michigan State University, East Lansing, MI |
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| Title: | Effect of European chafer larvae (Coleoptera: Scarabaeidae) on winter wheat and role of neonicotinoid seed treatments in their management |
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| Section: | Field and forage crops
Other records with the "Field and forage crops" Section
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| Source: | Journal of Economic Entomology. Vol. 108, No. 2, April 1 2015, p. 566-575. |
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| Publishing Information: | Lanham, Maryland: Entomological Society of America |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Clothianidin; Imidacloprid; Insecticide efficacy; Insecticide evaluation; Larva; Neonicotinoid insecticides; Rhizotrogus majalis; Seed treatment; Thiamethoxam; Triticum aestivum
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| Abstract/Contents: | "A critical density of four third-instar larvae per 900 cm2 for European chafer, Rhizotrogus (Amphimallon) majalis (Razoumowsky), in winter wheat, Triticum aestivum L., was derived from small-plot greenhouse and field experiments conducted under favorable crop growing conditions at several Ontario and Michigan locations from 2001-2003. On average, plant weight was decreased by 14% and plant stand by 11% between zero and four larvae per 900 cm2. In a commercial field under moisture stress, a yield loss of 35% occurred at a density of two third-instars per 900 cm2. In short-term greenhouse experiments, density-dependent mortality was evident, whereas low larval recovery in field experiments indicates a high level of overwintering mortality, regardless of larval density. Winter wheat seed treatments of neonicotinoid insecticides, clothianidin, imidacloprid, and thiamethoxam provided protection from damage by larvae, but the level of protection was inconsistent between greenhouse and field small plots, and there was no apparent difference in protection amongst active ingredients or between application rates. There was little evidence of larval mortality owing to seed treatment, which supports the suggestion that neonicotinoid insecticides protect seedlings from loss by a nonlethal mechanism. Overall, we estimate that a low rate of neonicotinoid insecticide used at larval densities just less than the critical density will mitigate winter wheat losses by 85%." |
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| Language: | English |
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| References: | 39 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Renkema, J. M., C. D. Difonzo, J. L. Smith, and A. W. Schaafsma. 2015. Effect of European chafer larvae (Coleoptera: Scarabaeidae) on winter wheat and role of neonicotinoid seed treatments in their management. J. Econ. Entomol. 108(2):p. 566-575. |
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| DOI: 10.1093/jee/tov002 |
| Web URL(s):
https://academic.oup.com/jee/article/108/2/566/778107/Effect-of-European-Chafer-Larvae-Coleoptera
Last checked: 02/28/2017
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: b2222995a |
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