Ramesh Sagili

Ramesh Sagili

Apiculturist

541-737-5460
[email protected]

Expertise: Bees and pollinators

Programs: Oregon Master Beekeeper Program

Department/Unit: Horticulture

Content by Ramesh Sagili

Clover seed bee protection protocol

Bees help pollinate Oregon's clover seed crop but are vulnerable to pest control measures. Learn how to protect bees while maintaining yields.

Andony Melathopoulos, Nicole Anderson, Ramesh Sagili | Feb 2026 | OSU Extension Catalog Peer reviewed (Orange level)

Oregon blueberry bee protection protocol

Growers depend on honey bees to pollinate their crop, but bees are vulnerable to many pest-control products. Learn how growers and beekeepers work together to safeguard bees when applying pesticides.

Andony Melathopoulos, Scott Lukas, Ramesh Sagili, Wei Qiang Yang | Feb 2026 | OSU Extension Catalog Peer reviewed (Orange level)

Dissecting honey bees for tracheal mites

Tracheal mites (Acarapis woodi) infest and breed in the tracheae of honey bees. (Tracheae are fine tubes in the insect’s body that convey air to the tissues.) It’s not possible to diagnose a tracheal mite infestation ...

Ellen Topitzhofer, Carolyn Breece, Ramesh Sagili | Dec 2025 | Video Peer reviewed (Orange level)

The impact of beekeeping on native bees in urban settings

Does keeping honey bees in urban areas have impact on native bees? Find an overview of the arguments and suggestions on how to help native bees.

Andony Melathopoulos, Ramesh Sagili | May 2025 | OSU Extension Catalog Peer reviewed (Orange level)

OSU Honey Bee Lab supports pollinator health, saving beekeepers millions

The lab’s applied research helps Oregon’s beekeepers and farmers protect pollinators while supporting healthy crops and a sustainable food system.

Ramesh Sagili | May 2025 | Impact story

239 - Oregon Master Beekeeper Field Day

Beekeeping takes a lot of training and mentorship. In many states, the place to learn the finer points of this trade is in state Master Beekeeper programs. We hear about the Oregon program through its annual field day. Oregon Master Beekeeper Program web page

Ramesh Sagili | Jun 2023 | Podcast episode

OSU Extension launches Spanish-language Master Beekeeper track

Nation’s first Spanish track trains new stewards for vital pollinators.

Kym Pokorny | Oct 6, 2022 | News story

Northern Giant Hornet: A Potential Threat to Honeybee Colonies in Oregon

The northern giant hornet was detected in British Columbia and Washington in 2019. This publication outlines the identification, life cycle, and predatory habits of the northern giant hornet (Vespa mandarinia) for ...

Ellen Topitzhofer, Chris Hedstrom, Priyadarshini Chakrabarti Basu, Andony Melathopoulos, Silvia I. Rondon, Gail Langellotto, Ramesh Sagili | Sep 2022 | OSU Extension Catalog Peer reviewed (Orange level)

OSU researchers will study nutrition in bee-friendly plants

USDA grant will help identify optimal forage to support bee health and resilience.

Kym Pokorny | Jul 26, 2021 | News story

Honey bee lives shortened after exposure to two widely used pesticides

Beekeepers and environmental groups have raised concerns about the negative effects of these insecticides in recent years.

Chris Branam | Jun 16, 2020 | News story

Combating Bee Colony Loss: Ramesh Sagili

Dr. Ramesh Sagili, Associate Professor-Apiculture at Oregon State University. He works with stakeholders in the bee industry, the public through Extension, and students to help create a healthy and sustainable environment for bees. ...

Ramesh Sagili | May 2024 | Video

Honey bee study reveals nutritional gaps in key pollination crops

Research highlights concerns with pollen diversity in almonds, blueberries and carrot seed.

Chris Branam | Aug 28, 2019 | News story

Pollination and seed set in meadowfoam

Learn the characteristics of meadowfoam and best practices for managing honey bees.

Ramesh Sagili, Jennifer Kling, Carolyn Breece | Nov 2024 | OSU Extension Catalog Peer reviewed (Orange level)

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 | Dec 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Honey bees select future queens based on nutrition, study finds

This is the first study to thoroughly investigate the role of larval nutrition in queen selection.

Chris Branam | Jun 7, 2018 | News story

Residential Beekeeping: Best-practice guidelines for nuisance-free beekeeping in Oregon

This publication outlines guidelines for best practices for beekeeping in residential areas. It outlines the steps residential beekeepers can take to operate their bees in nuisance-free manner.

Andony Melathopoulos, Ralph (Mike) Rodia, Jennifer Larsen, Ramesh Sagili | Mar 2026 | OSU Extension Catalog Peer reviewed (Orange 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 | Jul 2024 | Video Peer reviewed (Orange level)

The small hive beetle: A potential pest in honey bee colonies in Oregon

The small hive beetle has been a menace in many states and poses a threat to Oregon through migratory and purchased bee colonies. Learn to identify the beetle and potential damage it can cause.

Karessa Torgerson, Carolyn Breece, Ramesh Sagili, Dewey Caron | Jun 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Nurturing Mason Bees in Your Backyard in Western Oregon

An overview of mason bee basic biology and life cycle, and detailed descriptions of what is needed to start keeping mason bees, including desirable plants, nesting sites and types of nests, and caring for the ...

Brooke Edmunds, Richard Little, Ramesh Sagili | Aug 2022 | OSU Extension Catalog Peer reviewed (Orange level)

Overwintered honey bee nucleus colonies: big solutions in small packages

Commercial and backyard beekeepers can minimize colony losses by establishing nucleus colonies. Nucleus colonies can quickly resolve many beekeeping problems.

Ramesh Sagili, Carolyn Breece, Karessa Torgerson, Harry Vanderpool | Nov 2024 | OSU Extension Catalog Peer reviewed (Orange level)

Evaluating honey bee colonies for pollination

Commercial growers who rent honey bees for pollination and beekeepers who provide pollination services can learn about evaluating honey bee colony strength, the average number of colonies needed for pollination, basic honey bee biology and pollination contracts.

Ramesh Sagili, Michael Burgett | Nov 2024 | OSU Extension Catalog Peer reviewed (Orange level)

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