Special Issue 1, December 2009
Article Number: 14
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Measurement residue of two currently used pesticides (Endosulfan and Fosalon) in Colorado potato beetle control and their entrance into the environment
        
F. Nasehi, M.Z. Zadeh, H. Shahbazi, and G.N. Ghonbalani
Pages 73-75

Abstract—In Iran high amounts of insecticides are being consumed to fight agricultural pests that can severely contaminate environment and arable crops. Phosphoric and chlorine toxins, are some significant one's for high toxicity and long-term persistence in the environment, respectively. These toxins directly or indirectly enter the environment and enter crops and through it enter the nutritional cycle of organisms. Determining these toxins residue consistency and comparing with world standards will help us in management of correct use of pesticides. In present research effects of different consistency of toxin and crop-dusting time on the rest of two toxins [Endosulfan (Thiodan) and Fosalon (Zolone)] that frequently used in control of Colorado potato beetle were been evaluated. The procedure includes sampling stage, condensation, concentrating and analysis. Analysis was been performed by GC machine and FTD, ECD detectors. According to the results, it is specified that use of different consistency with applying of different consistency, residue of these toxins were not higher than standard, again it is specified that residue of Fosalon was more than Endosulfan. Results showed that there was no meaningful difference between different consistencies and different usage over time, from this viewpoint of residue of toxins. Sampling over one month intervals showed that with lapse of time toxin's residue is reduced as 0.008 PPM. This project showed that a large extent of Fosalon and Endosulfan enter in the environment.

Keywords—endosulfan, environment, fosalon, potato, residue.