Toni Stephan

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Content by Toni Stephan

I have fungus gnats everywhere. Can you help?

Q: I grew several plants outside this last summer Rosemary, Geranium, etc. When I brought them in for winter it seems I now have fungus gnats in all my houseplants. Please give advice. I would prefer not to use chemicals but am getting desperate.

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Grow Your Own Rhubarb

This publication describes how to successfully grow rhubarb as a vegetable or as an ornamental plant in the home garden.

Toni Stephan, Jack Parsons, N.S. (Bill) Mansour, James R. Baggett | Jan 2021 | Extension Catalog publication Peer reviewed (Orange level)

I have strawberry root weevil, are nematodes an option?

Q: I have several peonies in my front yard. The edges of the leaves are badly eaten by strawberry root weevil. How can I remove the strawberry root weevil? Is it worth doing?

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Identification and biology of small carpenter bees

Do you sometimes see a hole in a pithy stem? You might be seeing a nest of the small carpenter bee (genus Ceratina). Hear about how to identify these bees and their biology.

Toni Stephan | Jun 2020 | Video

Growing Vegetables in Central Oregon (Crook, Deschutes, and Jefferson counties)

The high-desert climate of Central Oregon can create challenges for any gardener. This guide provides region-specific tips and techniques for more successful vegetable gardens, including topics such as site selection, ...

Nov 2015 | Extension Catalog publication Peer reviewed (Orange level)

Common Weeds Found in Central Oregon

List of weeds commonly found in and around Central Oregon.

Toni Stephan | Aug 2015 | Fact Sheet

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