Worms in tart cherries

Asked July 6, 2016, 11:32 AM EDT

We have three pie cherry trees on our property in Bend, and they are producing wonderfully this year. We appear to have a fly of some kind infesting the tree, as many of the cherries have a small white worm in them. Is there a non-chemical, non-pesticide way to protect our cherries from this worm? It is a shared garden and many members do not mind the worms, and have a serious aversion to any kind of pesticide.

Deschutes County Oregon insect issues fruit trees cherry trees horticulture

1 Response

Hi,

The worm that you are seeing is likely the larval stage of the Western Cherry Fruit Fly. check out this website to confirm identificaiton and see suggested management. It will be too to manage for the insect this year, but there are some suggestions of what you can do to try and help manage for next year. It will be difficult to manage using cultural control only. Note there are some suggested chemical controls that are designated for organic use (OMRI). http://insect.pnwhandbooks.org/tree-fruit/cherry/cherry-western-cherry-fruit-fly

Thanks, Amy Jo