Memarizadeh, N., Ghadamyari, M., Talebi, K., Torabi, E., Adeli, M., Jalalipour, R.. (1398). Residues and Dissipation Kinetics of Two Imidacloprid Nanoformulations on Bean (Phaseolus vulgaris L.) under Field Conditions. , 5(4), 871-878. doi: 10.22059/poll.2019.275929.582
N. Memarizadeh; M. Ghadamyari; K. Talebi; E. Torabi; M. Adeli; R. Jalalipour. "Residues and Dissipation Kinetics of Two Imidacloprid Nanoformulations on Bean (Phaseolus vulgaris L.) under Field Conditions". , 5, 4, 1398, 871-878. doi: 10.22059/poll.2019.275929.582
Memarizadeh, N., Ghadamyari, M., Talebi, K., Torabi, E., Adeli, M., Jalalipour, R.. (1398). 'Residues and Dissipation Kinetics of Two Imidacloprid Nanoformulations on Bean (Phaseolus vulgaris L.) under Field Conditions', , 5(4), pp. 871-878. doi: 10.22059/poll.2019.275929.582
Memarizadeh, N., Ghadamyari, M., Talebi, K., Torabi, E., Adeli, M., Jalalipour, R.. Residues and Dissipation Kinetics of Two Imidacloprid Nanoformulations on Bean (Phaseolus vulgaris L.) under Field Conditions. , 1398; 5(4): 871-878. doi: 10.22059/poll.2019.275929.582

Residues and Dissipation Kinetics of Two Imidacloprid Nanoformulations on Bean (Phaseolus vulgaris L.) under Field Conditions

Pollution
مقاله 15، دوره 5، شماره 4، زمستان 2019، صفحه 871-878    اصل مقاله (504.01 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/poll.2019.275929.582
نویسندگان
N. Memarizadeh* 1؛ M. Ghadamyari2؛ K. Talebi3؛ E. Torabi3؛ M. Adeli4؛ R. Jalalipour2
1Department of Pesticides Researches, Iranian Research Institute of Plant Protection, Tehran, Iran
2Department of Plant Protection, University of Guilan, Rasht, Iran
3Department of Plant Protection, University of Tehran, Karaj, Iran
4Department of Chemistry, University of Lorestan, Khoramabad, Iran Institute of Chemistry and Biochemistry, Freie Universitat Berlin, Berlin, Germany
چکیده
The current study investigates the dissipation kinetics of two imidacloprid (IMI) nanoformulations (entitled: Nano-IMI and Nano-IMI/TiO2) on common bean (Phaseolus vulgaris) seeds under field conditions and compares them with 35% Suspension Concentrate (SC) commercial formulation. To do so, it sprays P. vulgaris plants at 30 and 60 g/ha within green bean stage, sampling them during the 14-day period after the treatment. Following extraction and quantification of IMI residues, dissipation data have been fitted to simple-first order kinetic model (SFOK) and to first-order double-exponential decay (FODED) models, with 50% and 90% dissipation times (DT50 and DT90, respectively) assessed along the pre-harvest interval (PHI). With the exception of Nano-IMI at 60 g/ha, other decline curves are best fitted to the FODED model. In general, dissipation is faster for Nano-IMI (at 30 g/ha: DT50 = 1.09 days, DT90 = 4.30 days, PHI = 1.23 days; at 60 g/ha: DT50 = 1.29 days, DT90 = 4.29 days, PHI = 2.95 days) and Nano-IMI/TiO2 (at 30 g/ha: DT50 = 1.15 days, DT90 = 4.40 days, PHI = 1.08 days; at 60 g/ha: DT50 = 0.86 days, DT90 = 4.92 days, PHI = 3.02 days), compared to 35% SC (at 30 g/ha: DT50 = 1.58, DT90 = 6.45, PHI = 1.93; at 60 g/ha: DT50 = 1.58 days, DT90 = 14.50 days, PHI = 5.37 days). These results suggest the suitability of Nano-IMI and Nano-IMI/TiO2 application at both rates in terms of their residues on P. vulgaris seeds.
کلیدواژه‌ها
Pesticide nanoformulation؛ imidacloprid؛ dissipation kinetics؛ Pre-harvest interval
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