White Butterflies?

Discussion in 'Outdoor Gardening in the Pacific Northwest' started by Anna Kadlec, Jul 22, 2021.

  1. Anna Kadlec

    Anna Kadlec Active Member 10 Years

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    Is it just me or is the lower mainland being invaded by white butterflies this year? Is there anything I need to know about these harmless-looking creatures?
     
  2. Eric La Fountaine

    Eric La Fountaine Contributor UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    There is if it's white cabbage moths, they lay eggs on your cruciferous vegetable plants and then the caterpillars eat holes in them. If it is a big pretty white butterfly, then I don't know. I have not noticed an abundance.

    Pieris rapae - Wikipedia
     
  3. Anna Kadlec

    Anna Kadlec Active Member 10 Years

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    Thanks. You've confirmed my suspicion... but how can I tell whether the ones in my yard are "bad" or "good"?
     
  4. Daniel Mosquin

    Daniel Mosquin Paragon of Plants UBC Botanical Garden Forums Administrator Forums Moderator 10 Years

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    Cabbage whites are butterflies. However, we do have two species locally, one native and one not. If it is has a spot, it is the non-native. See here for a comparison: Observations · iNaturalist
     
  5. Michael F

    Michael F Paragon of Plants Forums Moderator 10 Years

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    203 observations of the invasive species, and 9 of the native one - that's a sad thing to observe
     
  6. Sulev

    Sulev Well-Known Member

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    This summer larger than normal number of Aporia crataegi was observed here, in Estonia. They are also white.
    Aporia crataegi - Wikipedia
     

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