Ali, Kazam, Sagheer, Muhammad, Hasan, Mansoor ul, Rashid, Abdul, Shahid, Muhammad (2021). Bioactivity of medicinal plant extracts as toxicants and enzyme inhibitors against insect pests of stored commodities. , 10(1), 95-109. doi: 10.48311/jcp.2021.1523
Kazam Ali; Muhammad Sagheer; Mansoor ul Hasan; Abdul Rashid; Muhammad Shahid. "Bioactivity of medicinal plant extracts as toxicants and enzyme inhibitors against insect pests of stored commodities". , 10, 1, 2021, 95-109. doi: 10.48311/jcp.2021.1523
Ali, Kazam, Sagheer, Muhammad, Hasan, Mansoor ul, Rashid, Abdul, Shahid, Muhammad (2021). 'Bioactivity of medicinal plant extracts as toxicants and enzyme inhibitors against insect pests of stored commodities', , 10(1), pp. 95-109. doi: 10.48311/jcp.2021.1523
Ali, Kazam, Sagheer, Muhammad, Hasan, Mansoor ul, Rashid, Abdul, Shahid, Muhammad Bioactivity of medicinal plant extracts as toxicants and enzyme inhibitors against insect pests of stored commodities. , 2021; 10(1): 95-109. doi: 10.48311/jcp.2021.1523

Bioactivity of medicinal plant extracts as toxicants and enzyme inhibitors against insect pests of stored commodities

Journal of Crop Protection
Article 9, Volume 10, Issue 1, 2021, Pages 95-109    PDF (351.42 K)
Document Type: Original Research
DOI: 10.48311/jcp.2021.1523
Authors
Kazam Ali* 1; Muhammad Sagheer2; Mansoor ul Hasan2; Abdul Rashid3; Muhammad Shahid4
1Centre for Agriculture and Bioscience International, Central and West Asia, Rawalpindi, Pakistan.
2Department of Entomology, University of Agriculture, Faisalabad, Pakistan.
3Department of Plant Pathology, University of Agriculture, Faisalabad, Pakistan.
4Department of Bio-Chemistry, University of Agriculture, Faisalabad, Pakistan.
Abstract
The present research was performed to evaluate the bioactivity of Citrullus colocynthis (L.) and Melia azedarach L. extracts against three major stored grain insect pests including Tribolium castaneum (Herbst), Trogoderma granarium Everts, and Sitophilus granaries (L.). Toxicity and enzyme inhibition activity of acetylcholinesterase (AChE), α-carboxylesterase (α-CE), β-carboxylesterase (β-CE), acid phosphatases (ACP) and alkaline phosphatases (ALP) in three insect species induced by both plant extracts were evaluated at four different dose rates viz., 5, 10, 15 and 20%. Results showed maximum mortality (34.29%) in S. granarius with M. azedarach at maximum interaction of time and dilution level. In T. castaneum and T. granarium maximum recorded values for mortality were 30.87% and 18.95%, respectively, with extract of M. azedarach. Plant extract of C. colocynthis reported a maximum mortality of 21.92%, 19.18% and 16.89% in T. castaneum, S. granarius and T. granarium, respectively. Findings proved that both plant extracts had decent lethal impacts on tested insect species. Exposure of studied insects to plants extracts also resulted in significant inhibition of AChE, α-CE, β-CE, ACP and ALP. All tested enzymes in three insects were maximally inhibited by plant extract of M. azedarach except α-CE which was slightly more inhibited in S. granarius and ACP which was highly inhibited in T. granarium and S. granarius, by plant extract of C. colocynthis. Outcomes exhibit that plant based extract of M. azedarach is more pronounced in stored grain insect pests and propose the capability of using these plant extracts for safety of stored commodities as a safe substitute for insecticides.
Keywords
stored product pests; enzyme inhibition; Lethal effects; toxicity
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