A container of water with a little cooking oil floating on top under the light will catch the moths. I have seen everything from corded lights under a Chinese-hat lampshade over a shallow dish, to cheap solar lights with their lens as the container. Over 60,000 have been bred and released in the commercial apple regions of Hawkes Bay, Nelson/Motueka and Central Otago. Removing any fruit you find with tell-tale brown frass around the entry hole helps to control numbers SHERYNS RECOMMENDED ORGANIC CONTROL FOR HOME ORCHARDS Hang moth traps in the tree as soon as blossoms start to appear. STRATEGY : TRAP ADULT MOTHS Moth traps can be used to significantly reduce numbers. While these have proven somewhat successful for me in the past, they were not effective enough in themselves for adequate control and there is no way to ensure you catch the female before she has laid her eggs.
Once the caterpillar is inside the fruit it is protected from sprays. Summer The caterpillar will spend about three weeks gorging itself on the flesh of your apple, before emerging to seek a hidey hole to make its cocoon (see Winter).