Toxicological Effects of Silver and Zinc Oxide Nanoparticles on the Biological and Life Table Parameters of Helicoverpa armigera (Noctuidae: Lepidoptera)

Muhammad Shahbaz Asghar, Zahid Mahmood Sarwar (), Abdulrahman A. Almadiy, Ashwag Shami, Rania Ali El Hadi Mohamed, Nazeer Ahmed, Minakshi Sanjay Waghulade, Pravej Alam and Fahd Mohammed Abd Al Galil
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Muhammad Shahbaz Asghar: Department of Entomology, FAST Bahauddin Zakariya University Multan, Multan 60800, Pakistan
Zahid Mahmood Sarwar: Department of Entomology, FAST Bahauddin Zakariya University Multan, Multan 60800, Pakistan
Abdulrahman A. Almadiy: Department of Biology, Faculty of Arts and Sciences, Najran University, Najran 1988, Saudi Arabia
Ashwag Shami: Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
Rania Ali El Hadi Mohamed: Department of Biology, College of Sciences, Princess Nourah bint Abdulrahman University, Riyadh 11671, Saudi Arabia
Nazeer Ahmed: Department of Agriculture, University of Swabi, Anbar 23561, Pakistan
Minakshi Sanjay Waghulade: Department of Zoology Secondary Education Society’s Arts and Science College At/Po Bhalod, Tal-Yawal District, Jalgaon 425304, Maharashtra, India
Pravej Alam: Department of Biology, College of Science and Humanities, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
Fahd Mohammed Abd Al Galil: Department of Biology, College of Science, University of Bisha, Bisha 61922, Saudi Arabia

Agriculture, 2022, vol. 12, issue 10, 1-22

Abstract: American bollworm Helicoverpa armigera (Hubner) is a notorious pest of different agronomical and horticultural crops. Different synthetic insecticides are recommended to control H. armigera but widespread and repeated use has led to pesticide resistance in this pest. It is, therefore, necessary to develop a novel strategy to manage the population of H. armigera . Nanotechnology is the most effective and eco-friendly approach to mitigate this problem. In the present study, the bioefficacy of green synthesized nanoparticles and two different silver and zinc oxide nanoparticles with different concentrations, viz. 100, 125, 150, 175 and 200 ppm were used against the larvae. UV-vis spectrophotometer, SEM and EDX were used for nanoparticle characterization. Data were recorded daily. The result showed that in silver nanoparticles maximum larval mortality was 97%, while in zinc oxide nanoparticles, 82% was recorded against the 3rd, 4th and 5th instar of H. armigera . The effect of nanoparticles on demographic parameters was also evaluated, which increases the net reproductive rates, mean generation time and intrinsic rate in the control group compared to the treated population. After bioassay, larval and pupal duration was prolonged in the treated population compared to the control. The longevity of males, females and fecundity was also reduced. This technique will be a valuable tool in integrated pest management regimens.

Keywords: Helicoverpa armigera; silver; zinc oxide nanoparticles; life table (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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