Plant Disease Identification and Symptoms

The video provides an overview of plant diseases, discussing both infectious and non-infectious types. It explains the differences between healthy and diseased plants, and classifies diseases based on occurrence, such as endemic, epidemic, and pandemic. The video also covers localized versus systemic diseases and the modes of infection, including soil-borne, airborne, and seed-borne. The conclusion previews further discussions in upcoming videos.

What is the study of plant diseases caused by pathogens called?

• Entomology

• Botany

• Phytopathology

• Microbiology

Which of the following is NOT a biotic factor causing plant diseases?

• Air pollution

• Fungi

• Viruses

• Bacteria

Which condition is NOT a symptom of a healthy plant?

• Photosynthesis

• Cell division

• Respiration

• Nutrient deficiency

What type of plant disease occurs in a specific geographical region?

• Epidemic

• Pandemic

• Prodiatic

• Endemic

What is the term for diseases that occur at irregular periods and locations?

• Pandemic

• Epidemic

• Endemic

• Prodiatic

Which type of plant disease affects the entire plant?

• Root rot

• Leaf spot

• Localized

• Systemic

What is an example of a disease that spreads through air?

• Blight

• Smuts

• Root rot

• Damping off

Which of the following is a systemic plant disease?

• Leaf spot

• Stem rot

• Downy mildew

• Root rot

Which of the following is a symptom-based plant disease?

• Rust

• Root rot

• Stem rot

• Damping off

Which mode of infection involves pathogens carried with seeds?

• Airborne

• Soil-borne

• Water-borne

• Seed-borne