May 172010

Soft fruit, particularly raspberries, blueberries and strawberries are at risk this year from a new pest to the West Coast called Spotted Wing Drosophila, a particulary virulent pest which can lay up to 400 eggs per day. Entimologists are concerned because the fly was found last year all up and down the Pacific Coast. Cloud Mountain Farm has alerted its newsletter members to the probability that we will have the fly. Action must be taken to make sure they don’t ruin the fruit.

The fly can be identified fairly easily because of the black spots on the wings of the male.

The organic method of ridding your fruit trees, and berry bushes is to make a trap of apple cider vinegar and hang it from the lower branches or lower wire of raspberry trellis. I’m going to use plastic containers and rig a hangar from some wire. Drill some 3/16″ holes around the sides of the container, fill with about an inch of vinegar and put the lid back on.

The fly is expected to show up in late May if it deems to make an appearance so traps best be set out soon.


  One Response to “One More Thing to Worry About”

  1. Thanks for the tip, Randy! I think I might have seen some of these last year, but didn’t know what they were.

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