Turkish Journal of Entomology (2007) 31, 297-306

Recep Ay, Bülent Yasar, Ozan Demirözer, Baran Aslan, Sibel Yorulmaz, Medine Kaya and Ismail Karaca (2007)
[The determination of the residue levels of some commonly used pesticides in Isparta apple orchards]
Turkish Journal of Entomology 31 (4), 297-306
Abstract: In this study, the residues of five commonly used pesticides were investigated with the Gas Chromatography (GQ and High Performance Liquid Chromatography (HPLC) in the newly stored apple samples at the harvesting time of 2006 obtained from the districts of Isparta with intensive apple production. With this aim, a total of 82 apple samples were collected from different producers including Egirdir, Senirkent, Gelendost, Keçiborlu, Uluborlu, Gönen, Sarkikaraagaç and Atabey. The apple samples were taken from the storage houses right after harvesting and brought to the laboratory, stored in the -18 °C freezer until the analysis. The residue levels of the pesticides of diazinon, parathion-methyl and methidathion in these apple samples were determined using the GC. The NPD detector and TRB-5 column (30m X 0.32mm X 0.25pm) was used in GC. The residue levels of the pesticides of carbendazim and chlorpyrifos and chlorpyrifos metabolite 3,5,6-trichloro-2-pyridinol (TCP) in these apple samples were determined using the HPLC. Diode array detector (DAD) and Luna C8 column (150 X 4.6 mm) was used in HPLC. At least four of apple samples from the obtained ones were randomly selected and homogenized with the ultrahomogenator to determine the residues of the pesticides. The residue of pesticides from this homogenate was extracted with ethylacetate and given to the system as properly. Diazinon, parathion-methyl, methidathion, chlorpyrifos, 3,5,6-trichloro-2-pyridinol and carbendazim were found in 21, 24, 14, 29, 53 and 55 samples, respectively of 82 apple samples evaluated in this study. While amount of diazinon was higher than the tolerance level of 0.3 mg/kg in 19 samples and the level of parathion-methyl was higher than the tolerance level 0.1 mg/kg in all samples, methidathion level was higher than the tolerance level of 0.3 mg/kg only in one sample. Chlorpyrifos level was higher than the tolerance level of 0.5 mg/kg in 24 samples; carbendazim level was higher than the tolerance level of 2 mg/kg in 40 samples.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Turkish)
Full text of article
Database assignments for author(s): Recep Ay, Ismail Karaca, Baran Aslan, Ozan Demirozer

Research topic(s) for pests/diseases/weeds:
health/environmental effects of pesticides

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cydia pomonella	Apple (Malus)	Turkey
	Venturia inaequalis	Apple (Malus)	Turkey