Plant Pathology Basics
A type of plant disease caused by a living factor
What is a biotic disease?
The German botanist considered the father of Plant Pathology
Who is Anton DeBary?
A symptom of non-uniform coloration of flower petals
What is color breaking?
The process by which inoculum moves from plant to plant
What is dispersal?
The most reliable form of disease control
What is host resistance?
A foundational plant pathology concepts that explains what factors must interact for disease to develop
What is the disease triangle?
This festival was held in ancient Rome to ask the rust gods to allow a bountiful wheat harvest
What are the Rubigalia?
An abnormal swelling or localized outgrowth, often roughly spherical, produced by a plant as a result of attack by a pathogen
What is a gall?
The stage in the disease cycle when pathogens persist in absence of the host or when unfavorable conditions arise
What is survival?
A method of disease control based on preventing the host plant from coming into contact with the pathogen
What is avoidance?
The expression of disease by the affected plant
What are symptoms?
A groundbreaking theory championed by Louis Pasteur and Robert Koch according to which infectious diseases are caused by the presence and activity of microorganisms
What is the germ theory?
A type of depressed necrotic lesions on the stem of branches of woody plants
What is a canker?
The type of inoculum that is produced from a survival structure
What is the primary inoculum?
The use of an organism to control a disease or pathogen
What is biological control?
A type of host defense that is activated by the presence of a pathogen
What is an induced defense response?
The pathogen responsible for mass starvation in Ireland in the 1840s
What is Phytophthora infestans?
A type of crusty necrotic lesion
What is a scab?
An agent that carries a pathogen from an infected host to a healthy host
What is a vector?
A type of disease measure that reduces the amount of pathogen from a production area
What is sanitation?
A type of pathogen that kills host cells and then consumes the content
What is a necrotrophic pathogen?
Dr. Hand’s hometown
What is Florence, Italy?
A rapidly enlarging necrotic lesion
What is a blight?
A dark substance accumulated in the cell wall of some pathogens to increase chances of survival
What is melanin?
A type of disease management program that relies upon the use of several disease management strategies (the more the better).
What is Integrated Disease Management?