Dissipation and Residues of Difenoconazole and Azoxystrobin in Bananas and Soil in Two Agro-Climatic Zones of China

Huan, Zhibo; Xu, Zhi; Lv, Daizhu; Xie, Defang; Luo, Jun

doi:10.1007/s00128-013-1128-y

Cited by 25 publications

(13 citation statements)

References 9 publications

(10 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In China, nearly 333 000 hectares of land is earmarked for banana production, and the annual banana production is 9 million tonnes. 1 In China, bananas are grown mainly in tropical and subtropical regions such as the provinces of Hainan, Guangxi, Guangdong and Yunnan. The leaf spot disease caused by Mycosphaerella musicola Mulder is the most serious and destructive banana disease and damages almost 50% of banana cultures each year.…”

Section: Introductionmentioning

confidence: 99%

Deposition amount and dissipation kinetics of difenoconazole and propiconazole applied on banana with two commercial spray adjuvants

Long

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Deposition amount and dissipation kinetics of difenoconazole and propiconazole applied on banana with two commercial spray adjuvants

Long

et al. 2019

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…The fast degradation of azoxystrobin was confirmed by their study under field conditions. It was also suggested that azoxystrobin was stable in some matrices . The MRLs, a crucial parameter, are the safety indicators of pesticides in agricultural products.…”

Section: Resultsmentioning

confidence: 99%

“…It was also suggested that azoxystrobin was stable in some matrices. 7,29 The MRLs, a crucial parameter, are the safety indicators of pesticides in agricultural products. The MRLs established by the Codex, China, and the EU for azoxystrobin in cucumber are 0.1, 0.5, and 1.0 mg kg −1 .…”

Section: Residues Of Azoxystrobin and Meptyldinocap On Cucumbermentioning

confidence: 99%

Meptyldinocap and azoxystrobin residue behaviors in different ecosystems under open field conditions and distribution on processed cucumber

et al. 2019

View full text Add to dashboard Cite

BACKGROUND Several diseases and insects may cause damage to the normal growth of cucumber. Azoxystrobin and meptyldinocap, because of their novel mode of action, are effective against pathogens that have developed reduced sensitivity to other fungicides. Azoxystrobin is persistent in various crops and environments. However, there is a lack of research on the dissipation of these two pesticides, especially meptyldinocap. RESULTS Analytes could be quantified with decent recoveries of 90–101%, with relative standard deviations (RSDs) of 3.0–10.1%. The terminal residues of meptyldinocap and azoxystrobin in cucumber were all < limit of quantification (LOQ) (0.02 and 0.05 mg kg−1). The half‐lives of meptyldinocap and azoxystrobin were 0.8–1.1 and 1.2–2.8 days, respectively. The processing factors (PFs) for washing were all < 1, but the removal rate for washing was < 29.0%. Peeling had a significant effect on the removal of pesticide. The largest residue reductions were noticed through the pickling process, but special care should be taken regarding residues in the pickling solution as pesticides could transfer to them from cucumber. A more interesting finding was that the degradation of two pesticides was accelerated by the addition of calcium oxide. CONCLUSION Pesticide residues on cucumber decreased after these processes. These results enable the health‐risks from dietary exposures to pesticide residues to be characterized. They enable maximum residue limits (MRLs) to be established for pesticide residues in food products. They also assist the optimization of food processing with regard to pesticide residue dissipation. © 2019 Society of Chemical Industry

show abstract

“…In a greenhouse study, when the tomato leaves was sprayed with homogenous 0.1% aqueous solution of Amistar 250 SC, it was found that the t 1/2 of azoxystrobin was on the average within 13 days [2]. Huan et al found that the half-lives of the azoxystrobin in banana soil in Yunan province were shorter than in Hainan province, and the half-lives were 11.9-13.9 days and 16.0-16.1 days, respectively [21]. In the current study, the concentration of residues and the dissipation rate were analyzed under field conditions.…”

Section: Validation In Tomato and Soil Samples Under Field Conditionsmentioning

confidence: 99%

Dissipation and Residue of Azoxystrobin in Tomatoes and Soil Using Gas Chromatography with Tandem Mass Spectrometry

Wu¹,

Zhao²,

Yan³

et al. 2016

JRST

View full text Add to dashboard Cite

ABSTRACT:The analytical technique for the determination of azoxystrobin in tomato and soil was obtained by gas chromatography with tandem mass spectrometry (GC-MS/ MS), and its dissipation fate was also investigated under field conditions. Azoxystrobin residues in tomato and soil were extracted with ethylacetate+cyclohexane extraction and followed by the dispersive-SPE purification. The average recoveries in tomatoes and soils at different spiked concentrations (0.1, 0.5 and 1.0 mg/kg) ranged from 86.16% to 105.47% with RSDs from 6.8% to 12.3%. The LOD ranged from 0.003 µg/kg to 0.004 µg/kg, and LOQ ranged from 0.009 µg/kg to 0.012 µg/kg. This developed methodology was also used to investigate the residues and dissipation of azoxystrobin in tomatoes and soil under the field conditions. The initial azoxystrobin concentrations in tomato fruits in Henan province and in Zhejiang province were 0.494 mg/kg and 0.638 mg/kg with half-lives of 9.9 days and 11.5 days, respectively. Concentrations were reduced by more than 50% at 10 days after application for both sample sets. Initial azoxystrobin concentrations in soil were 1.747 mg/kg and 1.845 mg/kg in Henan province and in Zhejiang province with half-lives of 8.6 days and 7.7 days, respectively.

show abstract

Dissipation and Residues of Difenoconazole and Azoxystrobin in Bananas and Soil in Two Agro-Climatic Zones of China

Cited by 25 publications

References 9 publications

Deposition amount and dissipation kinetics of difenoconazole and propiconazole applied on banana with two commercial spray adjuvants

Deposition amount and dissipation kinetics of difenoconazole and propiconazole applied on banana with two commercial spray adjuvants

Meptyldinocap and azoxystrobin residue behaviors in different ecosystems under open field conditions and distribution on processed cucumber

Dissipation and Residue of Azoxystrobin in Tomatoes and Soil Using Gas Chromatography with Tandem Mass Spectrometry

Contact Info

Product

Resources

About