-First consider cultural, then physical and biological controls for garden pests. Choose the least-toxic options and use judiciously because pesticides can kill helpful insects.
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Scelionid parasitoid wasp and stink bug eggs.
David Cappaert, Michigan State University
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-Conserve biological control agents such as predators and the parasitoids that feed on insect pests.
- Create or maintain habitat for garter snakes. Large pieces of wood or large rocks provide shelter.
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Snakes are terrific garden helpers, controling slugs and insects. Some help with rodent control also. |
-Walk through your yard before mowing to scare any snakes away from deadly mower blades.
Learn more here. https://extension.oregonstate.edu/news/snakes-slither-through-garden-eating-slugs-grubs-other-pests
Many insects have been brought to the US as Biological Control Agents. Watch for these helpers on Tansy ragwort.
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Cinnabar moth, adult and larvae OSU Ext. |
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Tansy ragwort flee beetle |
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Ragwort seed fly |
Plant flowers that support native beneficial insects –
Angelica
Asters
Coreopsis
Cosmos
Clover
Gillia
Phacelia
Russian sage and many more. Check the links below for more ideas. https://catalog.extension.oregonstate.edu/sites/catalog/files/project/pdf/pnw550.pdf
https://portlandnursery.com/resources/attracting-beneficials/
https://portlandnursery.com/resources/attracting-beneficials/
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Gillia |
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