Abstract
Abstract Experimental sprayings of kiwifruit vines with azinphos-methyl, diazinon, and omethoate were carried out in 1973 and with azinphos-methyl in 1974. Repeated azinphos-methyl applications gave virtually scale-free leaves and fruit at harvest. Residues of azinphos-methyl and omethoate were unusually high immediately after spraying (up to 18 mg/kg and 11 mg/kg respectively) and residues from some treatments remained above the relevant New Zealand maximum residue limits (MRL) (2 and 0.5 mg/kg) for in excess of 5 weeks. Diazinon residues were lower and decayed to below the New Zealand MRL within 10 days. The surface hair on the fruit contributed significantly to the high azinphos-methyl residues.
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