Spraying against plum fruit moth

Started by dandelion, July 12, 2007, 21:33:30

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dandelion

I got one of those pheromone sticky trap thingies to monitor my Victoria plum tree and caught quite a few moths, so I've sprayed the tree with liquid derris.
Question is: Do I need to repeat this later in the season? And if yes, how often?

dandelion


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