Botrytis blight ( Botrytis cinerea), also known as grey mold, is one of the common diseases of greenhouse crops. Descriptions of general symptoms and symptoms on flowers, leaves, seedlings, and stems are provided along with cultural and chemical management programs.
Electrical conductivity or 'salts' in soils and media are addressed by the author in terms of what a salt meter does, what electrical conductivity means, and how the information can help the grower. Several methods used to do electrical conductivity readings are included.
A discussion about the importance of plant root health in the landscape environment and the factors that can influence root system health. The authors address a variety of topics that influence root health ranging from nursery production methods to landscape practices.
Washington State University affiliated entomologist discusses the European crane fly (Tipula paludosa) and it's impact in the Pacific Northwest. Topics addressed include it's introduction into North America, lifecycle, biological and environmental controls, and chemical controls.
Research was conduced on the effect of using a clay-amended substrate to improve nutrient and water efficiency for plants in containers. The presentation includes detailed results on the performance of the different plants used.
A discussion about the factors to consider when making irrigation decisions involving container plants in the nursery environment. Topics include leaching, irrigation timing, substrate material, and plant architecture.