Posted: 03/08/2014 at 10:06
Hold on, Buttercupthistle......it's all getting a bit muxed up.
Now, there is no connection between brown rot and using pheromone traps. Pheromone traps are an aid to controlling plum moths.....the maggots of witch infest the plums themselves. These traps give out a pheromone mimicking the female moth and attract the male moth (seeking a mate) to their doom.
You may notice that the yellow sticky pad is marked into squares, this is so you can measure the amount of moths around and adjust the spray accordingly.....it's all in the instructions.....so not a cure as such.
Now brown rot - to save my time, this is taken from the RHS guide to the problem:
1 Control brown rot fungus starting in the late summer or early fall. Remove all diseased fruit that has fallen to the ground as well as fruit mummies and any cankered pieces on the tree itself. It is also beneficial to remove diseased branches in the winter when the tree is dormant. Dispose of diseased pieces immediately in a garbage container.
2 Prune trees to create better air circulation, which will discourage the growth of brown rot fungus. When watering plum trees, use low sprinklers that will not hit tree flowers, fruit and foliage, as this can create optimal conditions for the fungus to flourish.
3 Apply a synthetic fungicide or one that contains copper if you are concerned about brown rot fungus affecting your plum trees in the springtime. Follow the manufacturer's directions for exact application instructions. Spray fungicide while the trees are still in their pink bud stage for the fungicide to work best.
Hope that helps.