Bacterial Speck, A Leaf Spot of Tomato Can be a Serious Problem on Tomato Seedlings

Disease
Article discusses disease caused by a bacterium, Pseudomonas tomato. Plants affected were grown in greenhouses and garden centers.

Application of ISOXABEN and PENDIMETHALIN to Container-grown Broadleaved Evergreen Shrubs

Weeds
Article reviews a research trial conducted at the North Willamette Research and Extension Center in Aurora Oregon. Using Isoxaben and Pendimethalin herbicides in containerized woody ornamentals is the focus of the article.

Tulip Tree Aphid

Insect
A detailed overview of the tulip tree aphid (Macrosiphum liriodendri), including information on identifying the pest on its common host Liriodendron tulipifera (tulip tree). Topics such as its life cycle, damage, and control measures are discussed.

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.

Irrigation Practices: Measuring Sprinkler System Application Uniformity

Irrigation
A useful resource for nursery professionals to help guide them through the process of checking their overhead irrigation systems uniformity.

Weed Control In 1-0 Conifers Seedbeds With Sethoxydim (Poast) Spot Treatments.

Weeds
A brief summary of a research project which evaluates the herbicide Sethoxydim (Poast) for grass weed control and phytotoxicity in conifer seedling beds. Three conifer species, Abies procera (noble fir), Pinus sylvestri s (Scotch pine), and Psuedotsuga menziesii (Douglas-fir) were used.

White Pine Weevil

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

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.

Protecting Container-grown Nursery Stock With Covers During Severe Winter Conditions

Plant Stress
Discussion of commonly used cold protection aids for growers of nursery stock. Results from research conducted during an extreme winter in Oregon is covered.

Common Weeds in Oregon Container Crops

Weeds
Includes identification and management information for eight weeds commonly found in Oregon container nurseries. Color photos and descriptions of weeds throughout their life cycle aid in identification. Presents control strategies for each weed.

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