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Sublethal and hormesis effects of imidacloprid on the soybean aphid Aphis glycines

The soybean aphid, Aphis glycines Matsumura, is a major pest in soybean crop. Current management of this pest relies mainly on insecticides applications, and the neonicotinoid imidacloprid has been proposed as an effective insecticide to control A. glycines in soybean field. Imidacloprid at lethal c... Full description

Journal Title: Ecotoxicology 2015, Vol.24(3), pp.479-487
Main Author: Qu, Yanyan
Other Authors: Xiao, Da , Li, Jinyu , Chen, Zhou , Biondi, Antonio , Desneux, Nicolas , Gao, Xiwu , Song, Dunlun
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0963-9292 ; E-ISSN: 1573-3017 ; DOI: 10.1007/s10646-014-1396-2
Link: http://dx.doi.org/10.1007/s10646-014-1396-2
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recordid: springer_jour10.1007/s10646-014-1396-2
title: Sublethal and hormesis effects of imidacloprid on the soybean aphid Aphis glycines
format: Article
creator:
  • Qu, Yanyan
  • Xiao, Da
  • Li, Jinyu
  • Chen, Zhou
  • Biondi, Antonio
  • Desneux, Nicolas
  • Gao, Xiwu
  • Song, Dunlun
subjects:
  • Sublethal concentration
  • Integrated pest management
  • Neonicotinoid
  • Demographic parameter
ispartof: Ecotoxicology, 2015, Vol.24(3), pp.479-487
description: The soybean aphid, Aphis glycines Matsumura, is a major pest in soybean crop. Current management of this pest relies mainly on insecticides applications, and the neonicotinoid imidacloprid has been proposed as an effective insecticide to control A. glycines in soybean field. Imidacloprid at lethal concentrations not only exerts acute toxicity to A. glycines , but also cause various biological changes when aphids are chronically exposed to lower concentrations. In this study, we assessed the effects of a low-lethal (0.20 mg L −1 ) and two sublethal (0.05 and 0.10 mg L −1 ) imidacloprid concentrations on various A.   glycines life history traits. Aphid exposure to 0.20 mg L −1 imidacloprid caused slower juvenile development, shorter reproductive period, and reduced adult longevity, fecundity and total lifespan. Stimulatory effects, i.e. hormesis, on reproduction and immature development duration were observed in aphids exposed to the lower sublethal imidacloprid concentrations. Consequently, the net reproduction rate ( R 0 ) was significantly higher than in the control aphids. These findings stress the importance of the actual imidacloprid concentration in its toxicological properties on A. glycines. Therefore, our results would be useful for assessing the overall effects of imidacloprid on A. glycines and for optimizing integrated pest management programs targeting this pest.
language: eng
source:
identifier: ISSN: 0963-9292 ; E-ISSN: 1573-3017 ; DOI: 10.1007/s10646-014-1396-2
fulltext: fulltext
issn:
  • 1573-3017
  • 15733017
  • 0963-9292
  • 09639292
url: Link


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titleSublethal and hormesis effects of imidacloprid on the soybean aphid Aphis glycines
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subjectSublethal concentration ; Integrated pest management ; Neonicotinoid ; Demographic parameter
descriptionThe soybean aphid, Aphis glycines Matsumura, is a major pest in soybean crop. Current management of this pest relies mainly on insecticides applications, and the neonicotinoid imidacloprid has been proposed as an effective insecticide to control A. glycines in soybean field. Imidacloprid at lethal concentrations not only exerts acute toxicity to A. glycines , but also cause various biological changes when aphids are chronically exposed to lower concentrations. In this study, we assessed the effects of a low-lethal (0.20 mg L −1 ) and two sublethal (0.05 and 0.10 mg L −1 ) imidacloprid concentrations on various A.   glycines life history traits. Aphid exposure to 0.20 mg L −1 imidacloprid caused slower juvenile development, shorter reproductive period, and reduced adult longevity, fecundity and total lifespan. Stimulatory effects, i.e. hormesis, on reproduction and immature development duration were observed in aphids exposed to the lower sublethal imidacloprid concentrations. Consequently, the net reproduction rate ( R 0 ) was significantly higher than in the control aphids. These findings stress the importance of the actual imidacloprid concentration in its toxicological properties on A. glycines. Therefore, our results would be useful for assessing the overall effects of imidacloprid on A. glycines and for optimizing integrated pest management programs targeting this pest.
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titleSublethal and hormesis effects of imidacloprid on the soybean aphid Aphis glycines
descriptionThe soybean aphid, Aphis glycines Matsumura, is a major pest in soybean crop. Current management of this pest relies mainly on insecticides applications, and the neonicotinoid imidacloprid has been proposed as an effective insecticide to control A. glycines in soybean field. Imidacloprid at lethal concentrations not only exerts acute toxicity to A. glycines , but also cause various biological changes when aphids are chronically exposed to lower concentrations. In this study, we assessed the effects of a low-lethal (0.20 mg L −1 ) and two sublethal (0.05 and 0.10 mg L −1 ) imidacloprid concentrations on various A.   glycines life history traits. Aphid exposure to 0.20 mg L −1 imidacloprid caused slower juvenile development, shorter reproductive period, and reduced adult longevity, fecundity and total lifespan. Stimulatory effects, i.e. hormesis, on reproduction and immature development duration were observed in aphids exposed to the lower sublethal imidacloprid concentrations. Consequently, the net reproduction rate ( R 0 ) was significantly higher than in the control aphids. These findings stress the importance of the actual imidacloprid concentration in its toxicological properties on A. glycines. Therefore, our results would be useful for assessing the overall effects of imidacloprid on A. glycines and for optimizing integrated pest management programs targeting this pest.
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abstractThe soybean aphid, Aphis glycines Matsumura, is a major pest in soybean crop. Current management of this pest relies mainly on insecticides applications, and the neonicotinoid imidacloprid has been proposed as an effective insecticide to control A. glycines in soybean field. Imidacloprid at lethal concentrations not only exerts acute toxicity to A. glycines , but also cause various biological changes when aphids are chronically exposed to lower concentrations. In this study, we assessed the effects of a low-lethal (0.20 mg L −1 ) and two sublethal (0.05 and 0.10 mg L −1 ) imidacloprid concentrations on various A.   glycines life history traits. Aphid exposure to 0.20 mg L −1 imidacloprid caused slower juvenile development, shorter reproductive period, and reduced adult longevity, fecundity and total lifespan. Stimulatory effects, i.e. hormesis, on reproduction and immature development duration were observed in aphids exposed to the lower sublethal imidacloprid concentrations. Consequently, the net reproduction rate ( R 0 ) was significantly higher than in the control aphids. These findings stress the importance of the actual imidacloprid concentration in its toxicological properties on A. glycines. Therefore, our results would be useful for assessing the overall effects of imidacloprid on A. glycines and for optimizing integrated pest management programs targeting this pest.
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doi10.1007/s10646-014-1396-2
pages479-487
date2015-04