부산대학교 도서관

Four fungicides ziram (Ziram), dichlofluanid (Euparen), fluazinam (Shirlan) and captan (Captan) were applied in a five-spray program from budburst to flowering and a three-spray program from budburst to 20–30 cm shoot length stage in a Sultana vineyard at Irymple, Victoria. Bunch samples were collected at five intervals after the last application in the five-spray program and at two intervals after the three-spray program and analysed for residues of the fungicides applied. None of the three-spray treatments caused detectable residues at harvest. Some of the samples from the five-spray treatments of captan and ziram caused residues between 0.07–0.1 mg/kg at harvest. Each residue was less than the corresponding maximum residue limit (MRL). The time interval between the last application and harvest had a bigger influence on residues than the growth stage at which the sprays were applied. Pre-flowering sprays have the potential to cause residues at harvest if the degradation rates of applied chemicals are sufficiently slow. All four fungicides can be applied in a budburst to flowering spray program without risk of exceeding recognised MRLs.