Why is it important to understand the concept of plant diseases?
The study of plant diseases is important as they cause loss to the plant as well as plant produce. The various types of losses occur in the field, in storage or any time between sowing and consumption of produce. The diseases are responsible for direct monitory loss and material loss.
Why is it important to study plant pathology?
Plant pathology investigates the biotic and abiotic factors behind the failure of plants to reach their genetic potential, and develops interventions to protect plants, reduce crop losses and improve food security.
What is the basic concept of plant disease management?
Plant disease management is mainly based on the use of fungicides, bactericides, and insecticides that are chemical compounds toxic to phytopathogens, causative agents, or vectors of plant diseases.
What are the basic principle of plant disease management?
The six fundamental principles of disease management are exclusion, eradication, protection, resistance, therapy, and avoidance of insect vectors and weed hosts. 1. Exclusion means preventing the entrance and establishment of pathogens in uninfested crops in a particular area.Apr 4, 2016
Plant diseases can be broadly classified according to the nature of their primary causal agent, either infectious or noninfectious. Infectious plant diseases are caused by a pathogenic organism such as a fungus, bacterium, mycoplasma, virus, viroid, nematode, or parasitic flowering plant.
What are the basic steps in the plant disease cycle?
Plant disease cycles represent pathogen biology as a series of interconnected stages of development including dormancy, reproduction, dispersal, and pathogenesis. The progression through these stages is determined by a continuous sequence of interactions among host, pathogen, and environment.
Why is it important to control the spread of plant diseases?
The plants and crops in any place have evolved with the local pathogens so are able to survive. Those same pathogens can be deadly to plants in other parts of the world. This is why the movement of foods, seeds, timber, whole plants and soil is regulated.
What is the importance of making a correct plant disease diagnosis?
Without proper identification of the disease and the disease-causing agent, disease control measures can be a waste of time and money and can lead to further plant losses. Proper disease diagnosis is therefore vital. Often, plant pathologists have to rely on symptoms for the identification of a disease problem.
How do plants control the spread of disease?
Nine Keys to Plant Disease Prevention
- Understand the mechanism of infection. ...
- Choose the right plants for your site. ...
- Use disease-resistant varieties. ...
- Keep a clean garden: roguing, rotating crops, and sanitizing tools. ...
- Create a well-balanced soil. ...
- Keep plants healthy: proper watering, mulching, pruning, and fertilizing.
What are the control of plant diseases?
Traditional Principles of Plant Disease Control. Avoidance—prevent disease by selecting a time of the year or a site where there is no inoculum or where the environment is not favorable for infection. Exclusion—prevent the introduction of inoculum. Eradication—eliminate, destroy, or inactivate the inoculum.