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Oregon 4-H Flower and Ornamental Grower's Handbook

This handbook will help you become acquainted with the growing and use of plants in gardens and home yard landscaping. It also describes how to make cut flower arrangements that you, your friends, and family can enjoy.

Ernest Schaufler, David G. Adams, Duane Johnson, 4-H Development Committee for Plant Science Projects | Nov 2021 | Extension Catalog publication Peer reviewed (Orange level)

What's Wrong with my Potato Tubers? Diagnosing Tuber Abnormalities in Western Oregon and Washington

Describes and illustrates (color photos) tuber damage caused by insect pests, plant diseases, and physiological disorders.

Lane Selman, Nick Andrews, Alexandra Stone, Al Mosley | Jan 2008 | Extension Catalog publication Peer reviewed (Orange level)

Corn Smuts

Two types of smut attack corn in the Pacific Northwest: common smut and head smut. This publication provides descriptions of symptoms and the disease cycle, and management strategies (which differ considerably between...

S. Krishna Mohan, Phil Hamm, George Clough, Lindsey J. du Toit | Jul 2013 | Extension Catalog publication Peer reviewed (Orange level)

Oregon 4-H Horticulture Contest Guide: Vegetables

This publication describes how to plan and prepare vegetable exhibits for 4-H horticulture contests.

Joy Jones, Beverly Hobbs, N.S. Mansour | Mar 2007 | Extension Catalog publication Peer reviewed (Orange level)

Oregon 4-H Horticultural Advancement Guide

The Horticultural Advancement Program guide consists of a series of steps that allows 4-H members to set personal goals and learn at their own speed.

Virginia Bourdeau | Oct 2017 | Extension Catalog publication Peer reviewed (Orange level)

Forest Health Fact Sheet: Diseases and Insect Pests of Pacific Madrone

Discusses three major types of madrone diseases--foliage, branch dieback and trunk canker, and root--and ways to minimize and manage. Discusses insect pests of madrone: fall webworm, western tent caterpillar, aphids, and leaf miners. Color photos. Sources of further information.

Max Bennett, David C. Shaw | May 2008 | Extension Catalog publication Peer reviewed (Orange level)

Select and Prepare Herbs for Exhibit

This publication gives general guidelines for how to exhibit fresh, dried, and potted herbs and the qualities and characteristics judges look for. It also includes a chart of instructions for exhibiting specific herbs.

Lynette Black, Judi Peters, Gail Lee | Mar 2007 | Extension Catalog publication Peer reviewed (Orange level)

Forest Health Fact Sheet: Sudden Oak Death (Phytophthora ramorum)

Gives basic facts about a serious plant disease called Sudden Oak Death, caused by the pathogen Phytophthora ramorum. Describes risk of disease to forest health and to commercial nursery industry. Shows disease ...

David C. Shaw | Jun 2007 | Extension Catalog publication Peer reviewed (Orange level)