Assessment of sublethal and transgenerational effects of spirotetramat, on population growth of cabbage aphid, Brevicoryne brassicae L. (Hemiptera: Aphididae)

Frontiers in Physiology

Physiology

Khalid M. Al Syaad¹  Sabir Hussain²  Yasser Sabry Mostafa³  Fatimah A. Al Saeed⁴  Muhammad Hashim⁵  Muhammad Asif Aziz⁶  Sumreen Akhtar⁷  Hafiz Kamran Yousaf⁸  Afifa Naeem⁹  Ayesha Iftikhar⁹  Muhammad Jawad Saleem⁹  Qurban Ali⁹  Faisal Hafeez⁹  Romina Alina Marc^1,10  Muzammal Rehman^1,11  Muhammad Hafeez^1,12 

[1]Biology Department, Faculty of Science, King Khalid University, Abha, Saudi Arabia

[2]Department of Agriculture, Mir Chakar Khan Rind University, Sibi, Pakistan

[3]Department of Biology, College of Science, King Khalid University, Abha, Saudi Arabia

[4]Department of Biology, Saudi Arabia Research Center for Advanced Materials Science (RCAMS), College of Science, King Khalid University, Abha, Saudi Arabia

[5]Department of Entomology, Faculty of Agricultural Sciences, University of the Punjab, Lahore, Pakistan

[6]Department of Entomology, Faculty of Crop and Food Sciences, Pir Mehr Ali Shah, Arid Agriculture University, Rawalpindi, Pakistan

[7]Department of Zoology, Faculty of Basic Sciences, University of the Punjab, Lahore, Pakistan

[8]Department of Zoology, University of Okara, Okara, Pakistan

[9]Entomological Research Institute, Ayub Agricultural Research Institute, Faisalabad, Pakistan

[10]Food Engineering Department, Faculty of Food Science and Technology, University of Agricultural Science and Veterinary Medicine Cluj-Napoca, Cluj-Napoca, Romania

[11]Key Laboratory of Plant Genetics and Breeding, College of Agriculture, Guangxi University, Nanning, China

[12]State Key Laboratory of Rice Biology and Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, China

关键词: cabbage aphid;    population growth;    spirotetramat;    sublethal concentrations;    transgenerational effects;   

DOI  :  10.3389/fphys.2022.1014190

 received in 2022-08-08, accepted in 2022-11-09,  发布年份 2022

来源: Frontiers

【 摘 要 】

The cabbage aphid (Brevicoryne brassicae L.) is a devastating pest of cruciferous crops causing economic damage worldwide and notably owing to its increasing resistance to commonly used pesticides. Such resistance prompts the development of integrated pest management (IPM) programs that include novel pesticides being effective against the aphids. Spirotetramat is a novel insecticide used against sap-sucking insect pests, particularly aphids. This study evaluated the toxicity of spirotetramat to adult apterous B. brassicae after 72 h using the leaf dipping method. According to the toxicity bioassay results, the LC50 value of spirotetramat to B. brassicae was 1.304 mgL−1. However, the sublethal concentrations (LC5 and LC15) and transgenerational effects of this novel insecticide on population growth parameters were estimated using the age-stage, two-sex life table theory method. The sublethal concentrations (LC5; 0.125 mgL−1 and LC15; 0.298 mgL−1) of spirotetramat reduced the adult longevity and fecundity of the parent generation (F0). These concentrations prolonged the preadult developmental duration while decreasing preadult survival, adult longevity and reproduction of the F1 generation. The adult pre-reproductive period was also extended by spirotetramat treatment groups. Subsequently, the population growth parameters such as the intrinsic rate of increase r, finite rate of increase λ and net reproductive rate R0 of the F1 generation were decreased in spirotetramat treatment groups whereas, the mean generation time T of the F1 generation was not affected when compared to the control. These results indicated the negative effect of sublethal concentrations of spirotetramat on the performance of B. brassicae by reducing its nymphal survival, extending the duration of some immature stages and suppressing the population growth of B. brassicae. Overall, we demonstrated that spirotetramat is a pesticide showing both sublethal activities, and transgenerational effects on cabbage aphid; it may be useful for implementation in IPM programs against this aphid pest.

【 授权许可】

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Copyright © 2022 Iftikhar, Hafeez, Aziz, Hashim, Naeem, Yousaf, Saleem, Hussain, Hafeez, Ali, Rehman, Akhtar, Marc, Syaad, Mostafa and Saeed.