1988 Amendments to FIFRA - What do They Mean?

An explanation of the 1988 amendments to the Federal Insecticide Fungicide and Rodenticide Act (FIFRA). The authors address what the amendments meant for growers, types of crops most affected, and concerns about pesticide re-registration.

Application of Ectomycorrhizal Fungi in Vegetative Propagation of Conifers

Plant Propagation
A report on the potential use of ectomycorrhizal fungi in vegetative conifer production to increase adventitious shoots and enhance root formation and/or subsequent root branching. The authors specifically discuss in vivo cutting production, in vitro organogenesis and somatic embryogenesis.

Changes in Cutting Composition During Early Stages of Adventitious Rooting of Miniature Rose Altered by Inoculation with Arbuscular Mycorrhizal Fungi

Plant propagation
USDA affiliated study conducted on miniature roses (Rosa L.) to determine if components of arbuscular mycorrhizal fungi inoculum induced changes in adventitious rooting of miniature roses and the time frame in which the rooting changes occurred.

Susceptibility of Pacific Northwest Conifers to Phytophthora Root Rot

Plant Disease
A study was conducted on Phytophthora root rot and the susceptibility of Pacific Northwest conifers. Twelve species of conifer were tested for susceptibility to five species of Phytophthora. Report includes methods, results, conclusions, and recommendations.

Tomato Spotted Wilt Virus and Western Flower Thrips: Update

Plant Disease
Update report on tomato spotted wilt virus (TSWV) and western flower thrips. The Oregon State University affiliated author provides information about the plant species affected, genetic resistance to TSWV, insecticides, and cultural practices.

Practices to Minimize Contamination of Groundwater and Runoff Water in Greenhouse and Nursery Production of Container Grown Plants

A guide to help minimize the amount of leaching created by greenhouse and nursery container production water runoff. Topics include nitrogen leaching, overhead irrigation with recirculation of runoff, and computer-controlled pulsed-trickle fertigation.

Plant Pathogens - Plant Diagnosis Clinic

Plant Disease
An overview of the B.C. Ministry of Agriculture and Fisheries plant diagnosis clinic at Cloverdale. The author discusses the history of the clinic, types of specimens examined, identified diseases and associated crops, and grower losses due to disease.

Enhanced Rooting of Kinnikinnick Cuttings using Mycorrhizal Fungi in Rooting Substrate

Plant propagation
Hardwood cuttings of kinnikinnick 'Massachusetts' (Arctostaphylos uva-ursi) were inoculated with mycorrhizal fungi to determine if the addition of the fungi during cutting propagation increased rooting or root growth, or altered the time for rooting.

Soil Pasteurization and Mycorrhizal Inoculation Alter Flower Production and Corm Composition of Brodiaea laxa 'Queen Fabiola'

Research was conducted on the wild hyacinth 'Queen Fabiola' (Brodiaea laxa) to determine whether the addition of mycorrhizal inoculum into the growing medium of Brodiaea laxa altered aspects of flower production, corm production, and corm quality.

Aphids: A Brief Introduction

The Oregon State University Department of Entomology affiliated author briefly discusses aphids and their impact on plants. Other topics also addressed in the discussion include control using natural enemies of aphids and management methods.