Biocidal activity of Ziziphora hispanica L and Satureja calamintha Scheele L essential oils against the Callosobruchus maculatus (Fabricius) pest on cowpea seeds during storage
In: Frontiers in Sustainable Food Systems ; volume 8 ; ISSN 2571-581X, 2024
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Introduction The post-harvest period of cowpea [ Vigna unguiculata (L) Walp] is marked by substantial losses due to the insect pest Callosobruchus maculatus (Fabricius). The primary goal of the current study is to identify environmentally appropriate substitutes for synthetic pesticides in the management of stored seed pests. Thus, in a laboratory setting, the insecticidal activity of essential oils (EOs) from Ziziphora hispanica and Satureja calamintha against the cowpea weevil C. maculatus was assessed. Methods The fumigant effects of these two EOs were tested with concentrations (4, 8, 12, 16, and 20 μL L−1 of air per 10 g of cowpea seeds) on four biological parameters of C. maculatus: adult mortality, fecundity, fertility, and adult emergence, while concentrations of 4, 12, 16, and 20 μL/cm2 of air were used for the repulsion test. Results and discussion The fumigant effects of these two EOs were tested with concentrations (4, 8, 12, 16, and 20 μL L −1 of air per 10 g of cowpea seeds) on four biological parameters of C. maculatus : adult mortality, fecundity, fertility, and adult emergence, while concentrations of 4, 12, 16, and 20 μL/cm 2 of air were used for the repulsion test. The results of fumigation tests showed a remarkable efficacy of both essential oils against adult C. maculatus after 24 h of exposure. Z . hispanica EO yielded a mortality rate of 80 ± 20%, with an LC 50 of 2.77 μL L −1 for males and 66.66 ± 11.54% with an LC 50 of 3.57 μL L-1 for females at 4 μL L −1 of air. However, the S. calamintha EO resulted in a mortality rate of 100% for males and 86.66 ± 23.09% with an LC 50 of 2.17 μL L −1 for females at low doses. The fecundity was 1.33 ± 0.57 eggs per female. In contrast, this parameter was absent with S. calamintha EO at the low dose, while fertility and emerging adults were missing for both EOs. Furthermore, both EOs showed highly repellent activity towards C. maculatus adults, with 81.66% for Z. hispanica and 91.67% for S. calamintha EO. According to the results of the GC–MS analysis, ...
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Biocidal activity of Ziziphora hispanica L and Satureja calamintha Scheele L essential oils against the Callosobruchus maculatus (Fabricius) pest on cowpea seeds during storage
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Autor/in / Beteiligte Person: | Baghouz, Asmae ; Bouchelta, Yassir ; Es-safi, Imane ; El Brahimi, Rajae ; Imtara, Hamada ; AlZain, Mashail N. ; Noman, Omer M. ; Shahat, Abdelaaty A. ; Guemmouh, Raja |
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Zeitschrift: | Frontiers in Sustainable Food Systems ; volume 8 ; ISSN 2571-581X, 2024 |
Veröffentlichung: | Frontiers Media SA, 2024 |
Medientyp: | academicJournal |
DOI: | 10.3389/fsufs.2024.1329100 |
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