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.

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

Irrigation
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.

Aphids: A Brief Introduction

Insects
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.

Resistance of Pests to Pesticides

Insects
Information on methods designed to reduce and/or prevent pesticide resistance build up in insect or mite populations. Topics addressed include background information on resistance, pest biology, pesticide use, proper pesticide use and application.

Biology and Control of Honeylocust Pod Gall Midge

Insects
A brief discussion about the honeylocust pod gall midge (Dasineura gleditschiae), a pest of Oregon honeylocust trees. The Oregon State University affiliated author addresses the biology and chemical control of the honeylocust pod gall midge.

Intermittent Mist System Controls Devices for Propagation Plants

Irrigation
An examination of different intermittent mist system control devices used for plant propagation. The author discusses a variety of control devices including but not limited to program repeating timer, light operated timer control, and multizone mechanical controller.

Physiology and Culture of Picea pungens 'Hoopsi'/Picea abies Grafts

Nursery Crops
A study was conducted to determine the physiology of graft formations in Picea pungens 'Hoopsi' scions grafted on Picea abies rootstocks. The purpose of the study was to identify factors limiting grafting success and improve production techniques.

Production of Daphne X burkwoodii `Carol Mackie'

Nursery Crops
A discussion about Daphne X burkwoodii `Carol Mackie' for wider landscape use. Topics of discussion include plant origins, propagation experiments, effects of propagation date on rooting, effects of fertilizers on branching, and growing trials.

Preparation and Use of STS for Cut Rose Flowers

Nursery Crops
Information provided on the use of STS for cut roses based on previous research indicating STS improved the life of cut roses. The steps the authors include in the process are preparation of stock solution, deciding on treatment conditions, and preparing the solution.

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