Baseline susceptibility to afidopyropen of soybean aphid (Hemiptera: Aphididae) from the north central United States

Queiroz, Obiratanea da Silva; Nyoike, T. W.; Koch, Robert L.

doi:10.1016/j.cropro.2019.105020

Cited by 11 publications

(4 citation statements)

References 36 publications

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“…Further experiments showed that it is the structural difference of the target rather than the metabolism capacity of detoxifying enzymes that contributed to the high selectivity of afidopyropen. Afidopyropen has been reported to be highly effective against many insect pests, especially the sucking pests, such as Aphis glycines Matsumura, 15,16 M. persicae Sulzer, 23 Acyrthosiphon pisum Harris, 14 Melanaphis sacchari Zehnter, 29 Bemisia tabaci Gennadius, 30 and Diaphorina citri Kuwayama, 31 but significantly safe to natural enemies, such as the predatory lady beetle H. convergens and the pirate bug O. insidiosus. 15 Our bioassay data also showed that afidopyrpen is extremely toxic to M. persicae, but is safe to C. septempunctata, which further confirmed the high selectivity of afidopyropen, and makes it possible to coordinate afidopyropen spraying with natural enemies in sustainable control of pests with piercing/sucking mouthparts.…”

Section: Discussionmentioning

confidence: 99%

“…Afidopyropen has been reported to be highly effective against many insect pests, especially the sucking pests, such as Aphis glycines Matsumura, 15,16 M . persicae Sulzer, 23 Acyrthosiphon pisum Harris, 14 Melanaphis sacchari Zehnter, 29 Bemisia tabaci Gennadius, 30 and Diaphorina citri Kuwayama, 31 but significantly safe to natural enemies, such as the predatory lady beetle H .…”

Section: Discussionmentioning

confidence: 99%

“…Afidopyropen is a novel semisynthetic insecticide, and it is highly effective against sucking insects by activating the vanilloid-type transient receptor potential (TRPV) channels thus disrupting motion coordination and feeding. 14,15 There is no cross-resistance between afidopyropen and pyrethroids, 16 pymetrozine, 17 and it is quite safe to natural enemies, such as the generalist predators Hippodamia convergens Guérin-Méneville and Orius insidiosus Say. 15 However, there is no valuable data to elucidate the selective mechanisms of afidopyropen against pests and natural enemies.…”

Section: Introductionmentioning

confidence: 99%

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Molecular mechanisms for selective action of afidopyropen to Myzus persicae and Coccinella septempunctata

Liu,

Wang,

Liu

et al. 2024

Pest Management Science

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BACKGROUNDAfidopyropen is a novel insecticide with high selectivity between sucking insects such as the peach aphids Myzus persicae and natural enemies like the seven‐spotted lady beetle Coccinella septempunctata. However, the mechanisms of selective action for afidopyropen remain unknown.RESULTSThe LC50 values of afidopyropen to the 1st – 4th instar larvae and adult C. septempunctata were 372‐ to more than 7267‐fold higher than that to adult M. persicae. Though the activity of cytochrome P450s in M. persicae was 6.1‐ to 7.5‐fold higher than that in C. septempunctata, the latter has much higher activities of carboxylesterase (CarEs) and glutathione S‐transferases (GSTs), and the crude enzyme of C. septempunctata and M. persicae showed similar metabolism efficiency to afidopyropen. Molecular docking results demonstrated that afdopyropen showed higher binding affinity to the vanilloid‐type transient receptor potential (TRPV) channel of M. persicae (‐9.1 kcal/mol) than to that of C. septempunctata (‐8.2 kcal/mol). And the EC50 value of afdopyropen to the TRPV channel of C. septempunctata (41360 nM) was 19885‐fold higher than that in M. persicae (2.08 nM).CONCLUSIONSOur results demonstrated that the significantly different sensitivity of M. persicae and C. septempunctata TRPV channel to afidopyropen play a key role in the high selectivity of afidopyropen. These findings provide new insights into the selective mechanisms of afidopyropen against insect pests and natural enemies as well as the theory support for coordinated application of chemical control and biological control.This article is protected by copyright. All rights reserved.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Molecular mechanisms for selective action of afidopyropen to Myzus persicae and Coccinella septempunctata

Liu,

Wang,

Liu

et al. 2024

Pest Management Science

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“…Afidopyropen, a novel pyropene insecticide, targets the transient receptor potential vanilloid (TRPV) of insects and acts potently against sucking insects by negatively affecting feeding, which result in starvation, desiccation, and mortality, thereby reducing virus transmission [11,12]. It has been reported that afidopyropen can be used as an effective measure for controlling notorious sucking and piercing insect pests, such as Aphis glycines Matsumura (Hemiptera: Aphididae), Monelliopsis pecanis Bissell (Hemiptera: Aphididae), B. tabaci, Diaphorina citri Kuwayama (Hemiptera: Liviidae), and Stephanitis pyrioides Scott (Hemiptera: Tingidae) [13][14][15][16][17]. the relative lack of toxicity of afidopyropen to natural enemies means, that along with other selective chemical agents, afidopyropen can be beneficial to integrated biological and chemical pest management; for example, afidopyropen was not toxic to Hippodamia convergens Guerin-Meneville (Coleoptera: Coccinellidae) and Orius insidiosus Say (Hemiptera: Anthocoridae), which are important natural enemies of A. glycines [18,19].…”

Section: Introductionmentioning

confidence: 99%

Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly Bemisia tabaci MED (Q Biotype)

et al. 2021

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Bemisia tabaci is a devastating agricultural insect pest worldwide, and B. tabaci MED (formerly biotype ‘Q’) threatens the production of horticultural and economic crops in China as a growing number of cases of insecticide resistance have issued, highlighting the requirement for alternative methods and measures of pest management. In the present work, the toxicities of eight popular chemical agents, including the novel pyropene insecticide afidopyropen, on adults of B. tabaci MED were determined, and then physiological and biochemical responses to sublethal concentrations were confirmed. Among all tested chemical agents, afidopyropen exhibited the highest toxicity to adult whiteflies (LC50: 7.38 mg/L). The sublethal effects of afidopyropen were studied at two sublethal concentrations, LC10 (0.53 mg/L) and LC25 (1.84 mg/L), and LC25 treatment extended the duration of growth stages and reduced viabilities in the stages of nymphal, pseudopupae, and adults. The egg-laying days and eggs laid per female were also decreased significantly, as was hatchability in the LC25 treatment. Metabolic enzyme assays suggested that the sublethal effects of LC25 treatment could be ascribable to enhanced detoxification mediated by glutathione S-transferase. In summary, our findings indicate that afidopyropen can be used as a chemical agent for the management of B. tabaci MED whiteflies.

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Susceptibility baseline of Aphis gossypii Glover (Hemiptera: Aphididae) to the novel insecticide afidopyropen in China

Shi

Liang

et al. 2022

Crop Protection

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Baseline susceptibility to afidopyropen of soybean aphid (Hemiptera: Aphididae) from the north central United States

Cited by 11 publications

References 36 publications

Molecular mechanisms for selective action of afidopyropen to Myzus persicae and Coccinella septempunctata

Molecular mechanisms for selective action of afidopyropen to Myzus persicae and Coccinella septempunctata

Physiological and Biochemical Responses to Sublethal Concentrations of the Novel Pyropene Insecticide, Afidopyropen, in Whitefly Bemisia tabaci MED (Q Biotype)

Susceptibility baseline of Aphis gossypii Glover (Hemiptera: Aphididae) to the novel insecticide afidopyropen in China

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