Knowledgebase

samurai wasps for stink bug control in my orchard? #925752

Asked March 10, 2026, 9:07 AM EDT

can I get approved to have samurai wasps distributed on my site in Flintstone MD to control them in my orchard?

Allegany County Maryland

Expert Response

Our entomologist says that the samurai wasp (Trissolcus japonicus) is a regulated insect, which it sounds like you may already know. Extension isn't a regulatory entity, though, so you and/or any program you find that is distributing the wasps would need appropriate USDA-APHIS and/or state department permits. We don't have any more detailed information about that step, and while the Maryland Department of Agriculture might have some of this information, it may be more efficient to connect with APHIS directly to ask about any needed approvals.

Miri
Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied March 10, 2026, 3:39 PM EDT

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