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Worm on Amur Maple bush #870621

Asked May 29, 2024, 3:56 PM EDT

The leaves pf our Amur Maple bushes are being eaten by small worms. What is this worm? How can I get rid of it and protect our bushes? Picture is attached.

Hennepin County Minnesota

Expert Response

Thank you for writing.
Your picture is very low resolution, it should 1-2 megs.
However, I can make a couple guesses. Cross-striped Cabbage Worm  https://ag.umass.edu/vegetable/fact-sheets/cross-striped-cabbage-worm 
Eastern Black Swallowtail Butterfly Caterpillar  2nd choice.  https://entnemdept.ufl.edu/creatures/bfly/bfly2/eastern_black_swallowtail.htm  But I really need a hi resolution picture
Steve Miles, Master Gardener, Hennepin County, (I am a volunteer human being: not a bot, not AI). I'm an avid gardener but not a degreed or certified horticulturist or arborist. I will do much better if you also send a photograph. I like follow-up questions.  The University' garden soil tests are excellent.  https://soiltest.cfans.umn.edu/testing-services/lawn-garden This is how to find a tree expert.  https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional  A Directory of ISA certified arborists is at https://certificates.directory.isa-arbor.com/  The Minnesota Landscape Arboretum is a wonderful place to see and learn about plants that grow in Minnesota. https://mngardens.horticulture.umn.edu/minnesota-landscape-arboretum  Ask a Master Gardener is a public service of the University of MInnesota's Extension Division.  Please donate if we make you happy.  https://give.umn.edu/gardener Replied May 29, 2024, 5:16 PM EDT

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