Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi.
The bird cherry-oat aphid, Rhopalosiphum padi (L.), is a major insect pest of cereal crops in many countries. Imidacloprid has been widely used for controlling piercing-sucking insect pests worldwide, but its sublethal effects on R. padi have not been well addressed. In this study, we investigated t...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2018-01-01
|
| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC6147452?pdf=render |
| _version_ | 1811330638925529088 |
|---|---|
| author | Wenqiang Li Zengbin Lu Lili Li Yi Yu Song Dong Xingyuan Men Baohua Ye |
| author_facet | Wenqiang Li Zengbin Lu Lili Li Yi Yu Song Dong Xingyuan Men Baohua Ye |
| author_sort | Wenqiang Li |
| collection | DOAJ |
| description | The bird cherry-oat aphid, Rhopalosiphum padi (L.), is a major insect pest of cereal crops in many countries. Imidacloprid has been widely used for controlling piercing-sucking insect pests worldwide, but its sublethal effects on R. padi have not been well addressed. In this study, we investigated the sublethal effects of imidacloprid on biological parameters and five enzyme activities of R. padi. The LC10, LC20, and LC25 of imidacloprid to adult aphids were 0.0053, 0.0329 and 0.0659 mg L-1, respectively. These concentrations significantly decreased pre-adult survival rate, but prolonged the development duration of 1st instar nymphs, pre-oviposition period, and adult longevity. Adult oviposition period was also extended by LC20. The intrinsic rate of increase (r), net reproductive rate (R0), and finite rate (λ) decreased at all three concentrations, whereas mean generation time (T) increased. Moreover, LC20 and LC25 significantly inhibited superoxide dismutase (SOD) activity, but increased catalase (CAT) activity. Acetylcholinesterase (AChE) activity also increased at LC20. However, cytochrome P450 enzyme and peroxidase (POD) activity did not differ between imidacloprid treatments and the control. In conclusion, the imidacloprid concentrations tested here have negative impacts on the performance of R. padi by reducing its nymphal survival, extending the development duration of some stages, decreasing the rate of population growth, and altering enzyme activities. |
| first_indexed | 2024-04-13T16:06:45Z |
| format | Article |
| id | doaj.art-589709f73f6145ae801162edb323aa97 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-13T16:06:45Z |
| publishDate | 2018-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-589709f73f6145ae801162edb323aa972022-12-22T02:40:22ZengPublic Library of Science (PLoS)PLoS ONE1932-62032018-01-01139e020409710.1371/journal.pone.0204097Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi.Wenqiang LiZengbin LuLili LiYi YuSong DongXingyuan MenBaohua YeThe bird cherry-oat aphid, Rhopalosiphum padi (L.), is a major insect pest of cereal crops in many countries. Imidacloprid has been widely used for controlling piercing-sucking insect pests worldwide, but its sublethal effects on R. padi have not been well addressed. In this study, we investigated the sublethal effects of imidacloprid on biological parameters and five enzyme activities of R. padi. The LC10, LC20, and LC25 of imidacloprid to adult aphids were 0.0053, 0.0329 and 0.0659 mg L-1, respectively. These concentrations significantly decreased pre-adult survival rate, but prolonged the development duration of 1st instar nymphs, pre-oviposition period, and adult longevity. Adult oviposition period was also extended by LC20. The intrinsic rate of increase (r), net reproductive rate (R0), and finite rate (λ) decreased at all three concentrations, whereas mean generation time (T) increased. Moreover, LC20 and LC25 significantly inhibited superoxide dismutase (SOD) activity, but increased catalase (CAT) activity. Acetylcholinesterase (AChE) activity also increased at LC20. However, cytochrome P450 enzyme and peroxidase (POD) activity did not differ between imidacloprid treatments and the control. In conclusion, the imidacloprid concentrations tested here have negative impacts on the performance of R. padi by reducing its nymphal survival, extending the development duration of some stages, decreasing the rate of population growth, and altering enzyme activities.http://europepmc.org/articles/PMC6147452?pdf=render |
| spellingShingle | Wenqiang Li Zengbin Lu Lili Li Yi Yu Song Dong Xingyuan Men Baohua Ye Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. PLoS ONE |
| title | Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. |
| title_full | Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. |
| title_fullStr | Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. |
| title_full_unstemmed | Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. |
| title_short | Sublethal effects of imidacloprid on the performance of the bird cherry-oat aphid Rhopalosiphum padi. |
| title_sort | sublethal effects of imidacloprid on the performance of the bird cherry oat aphid rhopalosiphum padi |
| url | http://europepmc.org/articles/PMC6147452?pdf=render |
| work_keys_str_mv | AT wenqiangli sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT zengbinlu sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT lilili sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT yiyu sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT songdong sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT xingyuanmen sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi AT baohuaye sublethaleffectsofimidaclopridontheperformanceofthebirdcherryoataphidrhopalosiphumpadi |