Evaluation of diazinon degradation using ultraviolet

Subject Areas : Plant Pests

elham ghalenoei ¹ , Sohrab Imani ² , Samin Seddigh ³

1 - PhD student, Department of Entomology, College of Agriculture, Varamin-Pishva Branch, Islamic Azad university, Varamin, Iran
2 - Assistant Professor, Department of Entomology, College of Agriculture, Research and Science Branch, Islamic Azad university, Tehran, Iran.
3 - Assistant Professor, Department of Plant Protection, College of Agriculture, Varamin-Pishva Branch, Islamic Azad university, Varamin, Iran

Received: 2021-08-25 Accepted : 2021-08-25 Published : 2020-08-22

Keywords: apple, diazinon, Utraviolet, Reactor,

Abstract :

Agricultural pesticides may have detrimental effects on the environment and people consuming fresh products. Diazinon is a semi-systemic synthetic organophosphate insecticide, acaricide and nematicide, which is commonly used in agriculture because of its respiratory, contact, and digestive effects on a wide variety of rodent and sucking pests. Ultraviolet (UV) radiation is a form of electromagnetic energy with a short wavelength and a large amount of energy that is invisible to humans. UV's detrimental effects on all life on land and water, from bacteria to plants and vertebrates, are well known. In this analysis, the degradation of diazinon was evaluated using this radiation as a pesticide degrading agent. The experiment was carried out in two sprays on apple fruit and filter paper. Control samples were kept out of direct sunlight, while treatment samples were exposed to sunlight for 30, 60, 120 and 300 minutes. Each experiment was performed in three replications. According to the findings, the rate of diazinon degradation in the reactor was higher than that of sunlight. So that the highest degradation rate after 300 minutes with an average of 60% and 83% was observed in solar and reactor, respectively. Not only did UV radiation have a degrading effect on diazinon, but also it had a significant effect in combination with other factors.