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Can you please tell me how I can get rid of the worm that ruins feijoas, and from what moth does it come from if any? Thanks

  • Robyn McLean asked 1 year ago
  • last edited 1 year ago
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Hi Robyn, this is most likely to be the Australian Guava Moth, which is now becoming a real nuisance with reports of fruit damage even as far down the country as Wellington.

The guava moth infest fruit all year round with it effecting feijoa’s in autumn, citrus in autumn and winter, as well as plums, peaches, pears, nashi’s and macadamias in summer through to early winter.

Adult moths lay their eggs at the stem end and in cracks and crevices on the fruit. The resulting larvae feed inside the fruits, causing premature fruit drop or when the fruit is picked insect faeces is evident outside and inside the fruit. The fruit’s flesh could also be brown and rotting.

The only control that we are currently aware of is the guava moth trap which you can purchase in store. The trap has a pheromone attractant lure that is chemical free and non-toxic, this will trap the male guava moth reducing the breeding and hence infestation. Regular use of Neem Granules and Neem Oil also appears to be beneficial.

The removal and disposal of infected material and associated leaf litter from underneath trees will help destroy pupating guava moths. You can also cover green fruit with fine mesh to prevent moths laying eggs on the ripening fruit.

Thanks, the Palmers team

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