Abstract
Removal of pests on export fruit before packing using high pressure waterwashing is used commercially in New Zealand for apples and avocados and has the potential to be extended to other fruits and vegetables Mealybugs thrips and mites are intercepted on exported capsicums and the presence of species of quarantine importance results in methyl bromide fumigation which disrupts export reduces fruit quality and is costly The removal of mealybugs from naturally infested capsicums was measured after high pressure water washing at 50 75 100 125 150 175 or 200 psi and compared with results from an untreated control Before treatment capsicums had an average of 1237 live mealybugs per fruit At 3 days after high pressure waterwashing the numbers of live mealybugs on treated capsicums ranged from 38 to 118 per fruit resulting in 5885 reduction This compared with an average of 44 mealybugs on untreated capsicums at 3 days after treatment
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