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Look out these seasonally applicable resources for hemp producers.

What is the optimum spacing for hemp plants?

What is the optimum number of hemp plants per acre? The answer depends on what it's being grown for. Fewer plants produce more prized colas or clusters of buds, while denser plantings yield more extractable cannabinoid.

Richard Roseberg | Jun 2022 | Article

Hemp seedling diseases and their management in the Pacific Northwest

Hemp plants are susceptible to disease, especially at the early stages of development. Hemp growers can promote healthy plants by using high-quality seed and avoiding soil that is wet, dense or poorly drained.

Cynthia M. Ocamb | Jun 2022 | Article

Planning a drought-resilient hemp crop

Drought has become a fact of life for farmers throughout the West. For hemp growers, careful planning for where, when and what to plant can result in a crop that will thrive despite dry conditions.

Gordon B. Jones | Jul 2022 | Article

Monitoring for beet leafhopper adults helps halt spread of plant virus

Hemp growers need to monitor their fields regularly for adult beet leafhoppers, which can transmit the beet curly top virus. Although data for hemp is scarce, management techniques used to protect other crops are advised.

Govinda Shrestha | Jun 2022 | Article

Corn earworm management in hemp

The corn earworm can cause serious damage to outdoor hemp grown for smokable flower and CBD production in Oregon. Here's what hemp growers need to know to identify, monitor and control the corn earworm.

Govinda Shrestha | Aug 2022 | Article

Aspergillus ecology and mitigation strategies in hemp production

Potential mitigation strategies for Aspergillus in indoor and outdoor hemp cultivation systems.

Qingyang Wang, Cynthia M. Ocamb, Govinda Shrestha | Sep 2023 | Article

Post-harvest processing of hemp flowers

The profitability of hemp growers and the creation of reliable, consumable products such as CBD depend on the final quality of the flowers. But high-quality flowers require careful attention to post-harvest practices.

Catelyn Bridges | Oct 2022 | Article

Pest Management Resources

Corn earworm management in hemp

The corn earworm can cause serious damage to outdoor hemp grown for smokable flower and CBD production in Oregon. Here's what hemp growers need to know to identify, monitor and control the corn earworm.

Govinda Shrestha | Aug 2022 | Article

Hemp seedling diseases and their management in the Pacific Northwest

Hemp plants are susceptible to disease, especially at the early stages of development. Hemp growers can promote healthy plants by using high-quality seed and avoiding soil that is wet, dense or poorly drained.

Cynthia M. Ocamb | Jun 2022 | Article

Latest content

Statewide Needs Assessment for the Hemp Industry in Oregon

This needs assessment identifies what is known about hemp cultivation and knowledge gaps recognized by industry members, including growers, processors and allied stakeholders. This information will help establish priorities...

Govinda Shrestha, Cynthia M. Ocamb, Hannah Rivedal, Achala KC, Jeremiah Dung, Kenneth Frost, Don Wysocki, Stuart Reitz, Jeffrey Steiner | Dec 2023 | Extension Catalog publication

How to control Sclerotinia and Botrytis diseases in hemp

Hemp canker and gray mold management includes cultural control practices to improve air circulation and minimize leaf wetness. Proper plant spacing, plant pruning and irrigation timing help accomplish this. If Sclerotinia is detected,...

Cynthia M. Ocamb | Sep 2023 | Article

Biological pesticide shows potential for controlling corn earworm

Study suggests the biological pesticide Gemstar LC helps control corn earworm in hemp plants.

Alison Merkle, Govinda Shrestha | Sep 2023 | Article

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Latest stories

OSU Extension hemp web resources reach local, state, national and global audiences

The OSU Hemp Extension Program, based at the Southern Oregon Research and Extension Center in Central Point and led by Govinda Shrestha, Extension statewide hemp specialist, initiated the development of hemp extension education content using a variety of techniques.

Govinda Shrestha | Mar 2024 | Impact story

OSU Extension soil fertility study saves grower costs of applying gypsum to hemp crop

The study showed that the crop performed equally well with and without gypsum and nutritional samples of the hemp flowers did not indicate any problems by discontinuing applications.

Gordon B. Jones | Mar 2023 | Impact story

OSU Extension’s hemp harvest-timing research helps growers stay legal and protect profits

In response to industry concern, Gordon Jones, OSU Extension agriculture faculty in Jackson and Josephine counties, conducted a harvest-time study at the Southern Oregon Research and Extension Center.

Gordon B. Jones | Mar 2022 | Impact story

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Hemp Production Information Center

The Hemp Production Information Center, supported by USDA grant funds and hosted by UC Davis, contains wide-ranging production information for grain, fiber, and cannabinoid hemp from universities and organizations across North America.

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OSU Global Hemp Innovation Center

The Global Hemp Innovation Center is home to the world’s leading experts in hemp research. The largest of its kind in the nation, it promises to advance the research of hemp and its market potential across multiple diverse industries and research fields to serve the growing international demand for innovative approaches to food, health, and fiber.

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Meet Our Experts

Gordon Jones
Gordon B. Jones
Extension Agronomist
Govinda Shrestha
Hemp

Contact me with questions about hemp production in Oregon

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