Saturday Morning With Jack Tame

Guava Moth  It’s an Aussie moth which arrived in NZ 1997 – probably through wind-dispersal. In Australia its main host is a lillipilly – a member of the Myrtle Family, like Manuka, Pohutukawa/Rata as well as guava and feijoa. It’s not a big deal in Australia (kept in check by predators and parasites) but in NZ feijoa as well as citrus, nashi, macadamia, guavas (and plum, peach, loquats) are the main hosts – they are destructive! They are found Northland down to north Waikato/Coromandel at the moment, and they’re heading South.  Lifecycle takes about 8 weeks “from egg to egg”. These are laid on developing feijoa fruit; young larvae (tiny caterpillars) tunnel into the fruit (pinhole entrance) and eat the flesh. When full-grown the caterpillars come out and bungy-jump down to the soil to pupate. New moths emerge from these pupae, later in the season. They find each other through pheromone (males are very good at that!) they mate, and new eggs are laid.   Main options for control (None of them are very efficient