The slow attack of the guava moth

Have you ever cut open a home-grown feijoa and found rotten brown patches inside? Chances are it was caused by guava moth, an exotic pest from Australia which attacks crops including citrus, macadamia, and pipfruit besides guava. Asha Chhagan is researching ways to control the moth as it is causing more and more damage in certain regions, and she has a few suggestions for home gardeners.