Ti plasmid is found in which bacterium?

• Rhizobium

• Agrobacterium tumefaciens

• Bacillus

• Pseudomonas

Who is known as the father of Plant Pathology?

• Pasteur

• Leeuwenhoek

• Anton DeBary

• Millardet

Which of the following is a mesobiotic pathogen?

• Bacteria

• Fungi

• Viruses

• Protozoa

Which pathogen causes citrus stubborn disease?

• Virus

• Spiroplasma citri

• Viroid

• Nematode

Which of the following is a parasitic plant?

• Red algae

• Moss

• Dodder

• Fern

What is the vector of citrus stubborn disease?

• Aphid

• Whitefly

• Leafhopper

• Thrips

What is the term for an increase in number of cells?

• Hypertrophy

• Hyperplasia

• Necrosis

• Apoptosis

Which disease caused the Irish Famine?

• Brown Spot

• Coffee Rust

• Late Blight of Potato

• Red Rust

What is true resistance in plants?

• Resistance controlled by environment

• Controlled by genes

• Mechanical defense

• None

Which organism causes Red Rust of tea?

• Algae

• Fungus

• Bacteria

• Virus