Plant Diseases and Disorders

Question 1

Identify the conditions that cause a plant disease or disorder

Answer 1

existence of a pathogen, a susceptible host plant, and favorable environmental conditions

Question 2

List the types of plant pathogens

Answer 2

fungi, bacteria, viruses, phytoplasmas, and nematodes

Question 3

List 4 disease management strategies

Answer 3

resistant varieties, cultural control, sanitation, pesticide

Question 4

Define bacteria

Answer 4

single-celled microbes that reproduce by dividing

Question 5

Define disorder

Answer 5

reduced or abnormal growth or development of a plant caused by plant pathogens

Question 6

Define fungi

Answer 6

organism that grows in strandlike filaments, reproduce by spores, incapable of producing their own food

Question 7

Define Host

Answer 7

plant that supplies food and favorable living conditions for a parasite

Question 8

Define Nematodes

Answer 8

tiny non-segmented roundworms

Question 9

Define Pathogen

Answer 9

disease causing agent

Question 10

Define phytoplasmas

Answer 10

small bacteria that lack a cell wall

Question 11

define virus

Answer 11

a tiny parasite consisting of genetic material with a protein coating