Pine Needle Sheath Mite Damages Ornamental Pines in the Pacific Northwest

Insects
The pine needle sheath mite, Trisetacus campnodus (Acarina: Eriophyidae), was reported to be causing damage first on plantation scotch pine. The mite was then discovered on two other pines, black pine (Pinus nigra), and cluster pine (Pinus pinaster).

Special: Cyclamen Mite Alert

Greenhouse Crops
As the popularity of foliage plants from subtropical and temperate climates increased in the Pacific Northwest, so did the incidences of cyclamen mite (Steneotarsonemus pallidus Banks) infestations. Descriptions and lifecycle of the mite, symptoms of damage, and controls are discussed.

A Review of Ornamental Plant Pathology at Oregon State University

Nursery Crops
A report on the history of the research conducted at Oregon State University (OSU) on important diseases of nursery, bulb, and florist crops. Topics covered are research on; fungus diseases, virus diseases, bacterial diseases, nematode diseases, and the past and future of ornamental research at OSU.

New Controls Suggested for Holly Insects

Holly
Based on interest in controlling soft brown scale (Coccus hespiridum) and other insect pests of holly, research was conducted on several insecticides. The insecticides were tested for effectiveness against more than one insect pest, the results of the research is discussed by the author.

Evaluation of Miticides for Effective Control of Spruce Spider Mite

Insect
An in depth look at the spruce spider mite, Oligonychus ununguis (Jacobi). Complete information including host range, identification, life cycle, monitoring and control measures are discussed. Chemical control measures such as miticides and horticultural oils are reviewed.

Spruce Spider Mite

Insect
An in depth look at a potentially serious pest of many conifers commonly grown in nurseries throughout the Pacific Northwest. Article profiles the host range, life cycle, damage, monitoring, cultural prevention and control as well as chemical controls.

Christmas Tree Economics: Establishing and Producing Douglas-Fir Christmas Trees in Western Oregon

Christmas tree
A helpful publication for anyone considering growing Douglas-fir Christmas trees or for current growers. Covers cost of production and provides necessary tools for financial management and decision making.

Christmas Tree Economics: Establishing and Producing Noble Fir Christmas Trees in Western Oregon

Christmas tree
A helpful publication for anyone considering growing Noble Fir Christmas trees or for current growers. Covers cost of production and provides necessary tools for financial management and decision making.

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