Carolyn Breece

Faculty Research Assistant

541-737-5440
[email protected]

Programs: Oregon Master Beekeeper Program

Department/Unit: Horticulture

Content by Carolyn Breece

Master Beekeeper program adds groundbreaking Spanish-language track as it celebrates 10th year

It's the first program of its kind in the United States.

Kym Pokorny | Oct 6, 2022 | News story

Eco-friendly lawns require forethought to attract pollinators

Transitioning from an all-grass lawn to a flowering lawn is challenging.

Kym Pokorny | Jul 15, 2022 | News story

Revenue Sources for a Commercial Beekeeping Operation in the Pacific Northwest

Pollination services and honey production are the primary revenue sources for a beekeeping business based in the Pacific Northwest. Those starting a beekeeping operation should focus on two to three revenue sources ...

Ellen Topitzhofer, Carolyn Breece, Dan Wyns, Ramesh Sagili | May 2020 | Extension Catalog publication Peer reviewed (Orange level)

Operational Equipment Expenses for a Commercial Beekeeping Operation in the Pacific Northwest

When developing a business plan for a commercial beekeeping operation, a beekeeper must plan for honey production. Even if other income sources, such as pollination or nucleus/package/queen sales, are expected to be ...

Ellen Topitzhofer, Carolyn Breece, Dan Wyns, Ramesh Sagili | May 2020 | Extension Catalog publication Peer reviewed (Orange level)

Beekeeping Equipment Expenses: Woodenware and Other Components

Woodenware for a typical honey bee colony includes vertically stackable boxes with removable frames, a bottom board, lid and a queen excluder. The most common design is Langstroth equipment. Langstroth colony ...

Ellen Topitzhofer, Carolyn Breece, Dan Wyns, Ramesh Sagili | May 2020 | Extension Catalog publication Peer reviewed (Orange level)

Honey Bee Colony Maintenance Expenses: Supplemental Feed, Requeening and Medication

Success in pollination, honey production and other aspects of a beekeeping business depends on honey bee health. Strong, thriving colonies require many inputs from the beekeeper, including feed (carbohydrates and protein), medications and new queens when necessary.

Ellen Topitzhofer, Carolyn Breece, Dan Wyns, Ramesh Sagili | May 2020 | Extension Catalog publication Peer reviewed (Orange level)

Pollination and Seed Set in Meadowfoam

Defines characteristics of meadowfoam and offers honey bee management practices.

Ramesh Sagili, Jennifer Kling, Carolyn Breece | May 2019 | Extension Catalog publication Peer reviewed (Orange level)

Sampling for Varroa Mites

Left unchecked, varroa mites can severely damage the colony and lead to collapse. Visual inspection of honey bee adults is not a reliable way to monitor for varroa. This video demonstrates two methods for sampling a colony for varroa mites: the alcohol wash and the powdered sugar shake.

Carolyn Breece | Apr 2024 | Video

Protecting honey bees from yellowjacket wasps

Yellowjackets seek protein and carbohydrate to feed their developing larvae. A honey bee colony offers an abundance of both. Beekeepers can protect their honey bees from yellowjackets by keeping strong colonies, ...

Carolyn Breece, Ramesh Sagili, Dan Wyns | Jul 2018 | Extension Catalog publication Peer reviewed (Orange level)

Small Hive Beetle identification card

The small hive beetle is an invasive and damaging pest of honey bee colonies. This card will help people identify the beetle and distinguish it and its larvae from similar-looking beetles and larvae.

Carolyn Breece, Ramesh Sagili | Jun 2020 | Extension Catalog publication Peer reviewed (Orange level)

Sampling for Varroa Mites from a Honey Bee Brood Nest

Varroa destructor, a parasitic mite, is the most serious pest of a honey bee colony. Left unchecked, varroa mites can severely damage the colony and lead to collapse. Visual inspection of honey bee adults is not a reliable ...

Carolyn Breece, Ramesh Sagili | May 2020 | Video Peer reviewed (Gray level)

The Small Hive Beetle: A Potential Pest in Honey Bee Colonies in Oregon

Although no significant damage has been reported from this pest in Oregon and it is not clear whether this beetle can thrive in this state, the beetle has been a menace in many states and poses a threat ...

Karessa Torgerson, Carolyn Breece, Ramesh Sagili, Dewey Caron | May 2020 | Extension Catalog publication Peer reviewed (Orange level)

Dissecting Honey Bees for Tracheal Mites

Knowing the levels of tracheal mites in your apiary and understanding the effects of their presence will enable you to make an educated decision on your treatment plan. In this video, we demonstrate the dissection of a honey bee worker for tracheal mite infestation.

Ellen Topitzhofer, Carolyn Breece, Ramesh Sagili | May 2020 | Video Peer reviewed (Gray level)

Nosema Analysis in Honey Bees

Nosema is a microsporidian parasite that infects the gut of a honey bee. (Microsporidia are spore-forming fungi.) Nosema affects protein metabolism in honey bees and causes them to starve. In this video, we demonstrate how to ...

Ellen Topitzhofer, Carolyn Breece, Ramesh Sagili | May 2020 | Video Peer reviewed (Gray level)

Overwintered Honey Bee Nucleus Colonies: Big Solutions in Small Packages

This publication describes how commercial and backyard beekeepers can minimize colony losses through such best management practices as establishing nucleus colonies, which can provide quick resolution for many beekeeping problems.

Ramesh Sagili, Carolyn Breece, Karessa Torgerson, Harry Vanderpool | Oct 2019 | Extension Catalog publication Peer reviewed (Orange level)

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