Farhadi, Zohre, Ziaee, Masumeh, Esfandiari, Mehdi, Salimi, Anayatollah, Rasekh, Arash (2024). Does microemulsification improve the insecticidal activity of cypermethrin against the melon aphid, Aphis gossypii (Hemiptera: Aphididae)?. , 13(2), 191-208. doi: 10.48311/jcp.2024.1665
Zohre Farhadi; Masumeh Ziaee; Mehdi Esfandiari; Anayatollah Salimi; Arash Rasekh. "Does microemulsification improve the insecticidal activity of cypermethrin against the melon aphid, Aphis gossypii (Hemiptera: Aphididae)?". , 13, 2, 2024, 191-208. doi: 10.48311/jcp.2024.1665
Farhadi, Zohre, Ziaee, Masumeh, Esfandiari, Mehdi, Salimi, Anayatollah, Rasekh, Arash (2024). 'Does microemulsification improve the insecticidal activity of cypermethrin against the melon aphid, Aphis gossypii (Hemiptera: Aphididae)?', , 13(2), pp. 191-208. doi: 10.48311/jcp.2024.1665
Farhadi, Zohre, Ziaee, Masumeh, Esfandiari, Mehdi, Salimi, Anayatollah, Rasekh, Arash Does microemulsification improve the insecticidal activity of cypermethrin against the melon aphid, Aphis gossypii (Hemiptera: Aphididae)?. , 2024; 13(2): 191-208. doi: 10.48311/jcp.2024.1665

Does microemulsification improve the insecticidal activity of cypermethrin against the melon aphid, Aphis gossypii (Hemiptera: Aphididae)?

Journal of Crop Protection
Article 7, Volume 13, Issue 2, 2024, Pages 191-208    PDF (1.35 M)
Document Type: Original Research
DOI: 10.48311/jcp.2024.1665
Authors
Zohre Farhadi1; Masumeh Ziaee* 1; Mehdi Esfandiari1; Anayatollah Salimi2; Arash Rasekh1
1Department of Plant Protection, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
2Department of Pharmaceutics, Faculty of Pharmacy, Jundishapur University of Medical Sciences, Ahvaz, Iran.
Abstract
The melon aphid, Aphis gossypii Glover (Hemiptera: Aphididae) is one of the important ornamental plant pests in urban regions. In this study, the microemulsion system was developed using cypermethrin insecticide as the active ingredient, xylene as the solvent, and surfactants including Tensiofix 8427 + SDS, and Tensiofix 8427 + SLS, and 1-butanol (cosurfactant), as stabilizer. The optimal microemulsion formulation was determined using a pseudo-ternary phase diagram using the water titration method. The microemulsions mean droplet sizes were in the range 11.2–22.8 nm. The droplets of all three formulations were spherical and uniformly dispersed in water. The mortality percentage was 66.66, 56.66, and 55.00% 24 h after aphids exposure to C1-250 (cypermethrin: Tensiofix 8427 + SDS + 1-butanol: water, at the ratio of 10:20:70), C2-250 (cypermethrin: Tensiofix 8427 + SLS + 1-butanol: water, at the ratio of 10:20:70), and C3-250 (cypermethrin: Tensiofix 8427 + SLS + 1-butanol: water, at the ratio of 15:30:55), which increased to 92.86, 89.29, and 83.94%, 48 h after exposure, respectively. The results revealed that the microemulsion formulation containing cypermethrin 250 g/L was more effective in controlling A. gossypii than cypermethrin technical material and 150 g/L cypermethrin-based microemulsion.
Keywords
Cypermethrin; green space; Microemulsion; phase behavior; surfactant; Zeta potential
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