Tech Doc Library
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Crop Protection
The document discusses the issue of Iron (Fe) and Manganese (Mn) toxicity in crops like geraniums, its symptoms, and how to avoid or correct the problem by monitoring and adjusting the pH of the growing media.
The document discusses the challenges of pH increase in large containers used for growing plants, the role of water alkalinity, lime in soil, and fertilizer in managing pH levels, and provides recommendations for maintaining optimal pH levels to prevent iron deficiency in crops.
The document discusses the causes of phytotoxicity in plants, including species sensitivity, inappropriate tank mixes, and drought stress at the time of application, and provides recommendations for avoiding these issues.
The document provides guidance on how to handle plant damage due to phytotoxicity, including decision-making on whether to discard or salvage the plants, methods for cleanup and recovery, and optimizing crop cultural practices for fast recovery.
The document discusses the causes of calcium deficiency in poinsettia production, its indicators, and strategies to overcome it, including managing fertilizer programs, modifying the growing environment, and using foliar calcium chloride sprays.
The document provides recommendations for managing pest and disease outbreaks in greenhouses, emphasizing the importance of early detection, immediate action, and the use of appropriate insecticides, miticides, and fungicides.
The document provides technical information about Rhodococcus fascians, a bacterial pathogen causing leafy gall in a wide range of ornamental crops, detailing its symptoms, spread methods, and impact on various plant species.
The document provides strategies for managing the growth of garden mums, including measuring plant growth, adjusting fertilizer applications, and communicating with customers about size and tone priorities.
The document provides a diagnostic guide for Tomato spotted wilt virus (TSWV) and impatiens necrotic spot virus (INSV), detailing their symptoms, affected species, and methods for testing.
The document provides comprehensive information on the management of Tomato Spotted Wilt Virus (TSWV) and Impatiens Necrotic Spot Virus (INSV) in greenhouses, including prevention strategies, symptom identification, disease cycle, and control measures.
The document provides comprehensive information on the identification, life cycle, management strategies, and control measures for broad mites in greenhouse environments, including the use of pesticides and biological control agents.
The document discusses the importance of sanitation in preventing the spread of bacterial diseases such as Ralstonia and Xanthomonas in geraniums, and emphasizes the grower's responsibility in maintaining clean cultural conditions.
The document provides detailed information about Lewis mites, a pest that periodically appears in North American greenhouses, particularly on poinsettias, and offers strategies for their management and control, including the use of pesticides and biocontrol agents.
The document provides various strategies for controlling whitefly populations in poinsettias, including the use of URC or liner dips, biological controls, and chemical controls, emphasizing early identification and prevention.
The document discusses the issue of latex eruption or 'crud' in poinsettias, caused by excessive turgor pressure due to overly wet growing media or high nighttime air temperature, and provides prevention strategies such as moderate dry-down between waterings, increased airflow, and avoiding late-day watering.
The document provides detailed information about the lifecycle of whiteflies, their identification, and the importance of controlling their population in greenhouses, particularly for long-cycle seasonal potted plants.
The document discusses the factors causing poinsettias to stretch, including excessive turgor, shade avoidance, wrong fertilizer, and temperature differences, and provides strategies to prevent this, such as ensuring wet-to-dry cycles, maximizing airflow, adjusting shade curtains, using the right fertilizer, and applying plant growth retardants.
The document provides strategies to prevent excessive growth in poinsettia crops, including managing turgor pressure, light levels, fertilizer use, temperature differences, and the use of plant growth retardants.
The document provides detailed information about the Tobacco Mosaic Virus (TMV), its transmission, precautions to prevent its spread, and measures to take when dealing with infected plants.
The document discusses the identification and treatment of Bacterial Leaf Spot (BLS) in crops, caused mainly by the Xanthomonas genus, and provides best practices for prevention and containment of the disease.