Posted: 21/08/2015 at 15:29
Nematodes will not have any effect on Plum moth. You need to buy the Pheromone traps to catch the males before they can fertilise the females. Sad;y even then you will not stop them all. The traps are only really an indication of when you should spray. I use a Horticultural soft soap preparation which is reasonably organic as it is plant based.
Collect up and burn any infected fruit. Also try spraying the trees in December with the soap, to kill and overwintering moths.