Pesticide residues in yuza (Citrus junos) cultivated using ordinary and environmentally friendly cultures

Abstract

An analysis of seven pesticides in 160 yuza samples (100 by ordinary culture and 60 by environmentally friendly culture) was conducted. The detection rate of carbendazim was the highest and the levels were up to 5.15 mg/kg. The degradation order of the seven pesticides in yuza tea was as follows: acequinocyl>chlorpyrifos>spirodiclofen>carbendazim>deltamethrin> phosalone, prothiofos.