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Aristeidis M Tsatsakis - One of the best experts on this subject based on the ideXlab platform.
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evaluation of pesticides residues in greek peaches during 2002 2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Evaluation of pesticides residues in Greek peaches during 2002–2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June–August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p<0.001). However, chlorpyrifos residues at levels higher than the MRLs were detected in four peach samples (i.e. 7% of the total samples) grown by the conventional system. Comparing the results for both cultivation methods with the reported average percentage (3.6%) of fruit samples with pesticide resi...
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Monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June-August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p
Despoina T. Karagiozoglou - One of the best experts on this subject based on the ideXlab platform.
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evaluation of pesticides residues in greek peaches during 2002 2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Evaluation of pesticides residues in Greek peaches during 2002–2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Assessment of pesticide residues in fresh peach samples produced under Integrated Crop Management in an agricultural region of northern Greece.
Food Additives & Contaminants: Part A, 2009Co-Authors: Ioannis V. Zioris, Theocharis G. Danis, Dimitra A. Lambropoulou, Despoina T. Karagiozoglou, Triantafyllos A. AlbanisAbstract:A multi-residue method using selected ion monitoring mode GC/MS has been developed for the quantitative analysis of residue levels of 23 widely used pesticides in fresh peaches produced under Integrated Crop Management process (ICM). The proposed methodology involved a sample extraction procedure using liquid–liquid partition with acetonitrile followed by a clean-up step based on solid-phase extraction (SPE). Fortification studies were performed at different concentration levels for various types of peaches that differ in properties, such as appearance, flavor and pit. The data showed that the different peach matrices had no significant effect on recoveries. Recoveries were greater than 80% for most of the pesticides with a RSD below 18%. The limits of quantification (LOQs) were in the range 0.002–0.050 mg kg−1, depending on the compound. To assess method performance with real samples and determine whether pesticide concentrations in peaches exceed their maximum residue levels (MRLs), the proposed method ...
Theocharis G. Danis - One of the best experts on this subject based on the ideXlab platform.
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evaluation of pesticides residues in greek peaches during 2002 2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Evaluation of pesticides residues in Greek peaches during 2002–2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Assessment of pesticide residues in fresh peach samples produced under Integrated Crop Management in an agricultural region of northern Greece.
Food Additives & Contaminants: Part A, 2009Co-Authors: Ioannis V. Zioris, Theocharis G. Danis, Dimitra A. Lambropoulou, Despoina T. Karagiozoglou, Triantafyllos A. AlbanisAbstract:A multi-residue method using selected ion monitoring mode GC/MS has been developed for the quantitative analysis of residue levels of 23 widely used pesticides in fresh peaches produced under Integrated Crop Management process (ICM). The proposed methodology involved a sample extraction procedure using liquid–liquid partition with acetonitrile followed by a clean-up step based on solid-phase extraction (SPE). Fortification studies were performed at different concentration levels for various types of peaches that differ in properties, such as appearance, flavor and pit. The data showed that the different peach matrices had no significant effect on recoveries. Recoveries were greater than 80% for most of the pesticides with a RSD below 18%. The limits of quantification (LOQs) were in the range 0.002–0.050 mg kg−1, depending on the compound. To assess method performance with real samples and determine whether pesticide concentrations in peaches exceed their maximum residue levels (MRLs), the proposed method ...
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monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June–August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p<0.001). However, chlorpyrifos residues at levels higher than the MRLs were detected in four peach samples (i.e. 7% of the total samples) grown by the conventional system. Comparing the results for both cultivation methods with the reported average percentage (3.6%) of fruit samples with pesticide resi...
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Monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June-August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p
I. N. Tsakiris - One of the best experts on this subject based on the ideXlab platform.
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evaluation of pesticides residues in greek peaches during 2002 2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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Evaluation of pesticides residues in Greek peaches during 2002–2007 after the implementation of Integrated Crop Management
Food Chemistry, 2011Co-Authors: Theocharis G. Danis, I. N. Tsakiris, A. K. Alegakis, Despoina T. Karagiozoglou, Aristeidis M TsatsakisAbstract:Abstract The incidence and levels of pesticide residues in peaches grown using Integrated Crop Management (ICM) methods in Pella and Imathia, districts of Macedonia, Northern Greece, are hereby presented. A total of 1150 peach samples were collected pre-harvest (June–September) and were analysed during the period of 2002–2007. Residual levels of selected insecticides, fungicides and acaricides were determined by Gas Chromatography-Mass Spectrometry following solid phase extraction. The monitoring program is extended up to 31 pesticides. Twenty-two of them were measured above detection limit, and 8 of them were found present every year. Insecticides represent the highest incidence amongst pesticide categories (654 positive samples, 56.9%) while chlorpyrifos is the most frequent within the category (491 positive samples). The incidence of pyrethrins was the highest in 2007 (26.8%) while bifenthrin was detected most frequently within this category (67 positive samples in 2007). Traceable levels of pesticides were lower than the Maximum Residues Limits (MRLs) in all peach samples. Variances in incidence and levels of pesticides are attributed to some extent to the weather conditions as well as due to abidance by the guidelines of agronomists during blowing and harvest period. Monitoring in agricultural products could be employed as the first step in a chain of biomonitoring studies in humans, and may also be proven to be a good and ample indicator of exposure.
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monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants Part A-chemistry Analysis Control Exposure & Risk Assessment, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June–August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p<0.001). However, chlorpyrifos residues at levels higher than the MRLs were detected in four peach samples (i.e. 7% of the total samples) grown by the conventional system. Comparing the results for both cultivation methods with the reported average percentage (3.6%) of fruit samples with pesticide resi...
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Monitoring of pesticide residues in fresh peaches produced under conventional and Integrated Crop Management cultivation
Food Additives and Contaminants, 2004Co-Authors: I. N. Tsakiris, I. A. Stratis, I. A. Dialyna, A. K. Alegakis, Theocharis G. Danis, Dragana Nikitovic, Aristeidis M TsatsakisAbstract:The frequency and severity of Crop protection product (pesticide) contamination of peaches grown conventionally were compared with those of peaches grown by Integrated Crop Management (ICM). The peach samples (n = 150) were collected preharvest (June-August 2001) from both conventional (n = 55) and ICM (n = 95) cultivations from the Pella and Imathia districts of Macedonia, Northern Greece. The residue levels of selected insecticides, fungicides and acaricides in peach samples were determined by gas chromatography-mass spectrometry following solid-phase extraction. The concentrations of all detected pesticides were lower than the maximum residue limits (MRLs) in all peach samples grown with the ICM system (p
Rory Hillocks - One of the best experts on this subject based on the ideXlab platform.
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Integrated Crop Management for smallholder farmers in Africa with special reference to coffee in Malawi
Pest Management Science, 2000Co-Authors: Rory HillocksAbstract:Integrated Crop Management (ICM) goes beyond Integrated pest Management (IPM) in taking a more holistic approach that incorporates Crop protection activities as an aspect of Crop husbandry and as part of the overall farm Management plan. This encourages farmers to consider the pest Management benefits of sound Crop husbandry and soil nutrient Management, so that the use of commercial pesticides is a last resort, but when their use is necessary it is fully Integrated with cultural practices. Viewed in this way, ICM has much to offer agriculture in Africa, which is still largely based on smallholdings. However, the ICM concept as it is applied in developed countries will require careful adaptation to the needs of smallholder agriculture in the developing world. The most significant difference between the two levels of agrarian development is that in Western Europe and to some extent North America, food production is in surplus, whereas in Africa the need is still to maximise food production per hectare. Environmental concerns cannot therefore be a central component of an ICM system that will be acceptable to an African smallholder. The first requirement if ICM is to be adopted in Africa is that it should deliver yield increases and also that the Crop production increases are sustainable. Practices that pollute the environment or deplete the resource base are not ICM-compatible. Smallholder coffee in Malawi is taken as a case study to illustrate the contribution that an ICM approach could make to sustainable increases in Crop production.