Diseases

Question 1

What is a plant disease?

Answer 1

A plant disease is a condition that adversely affects the normal functioning of a plant, resulting in reduced growth, yield, or quality.

Question 2

Name two major causes of plant diseases.

Answer 2

Fungi and bacteria.

Question 3

True or False: Viruses can cause plant diseases.

Answer 3

True.

Question 4

What are symptoms of plant diseases?

Answer 4

Symptoms include wilting, discoloration, stunted growth, and abnormal growths.

Question 5

Fill in the blank: Plant diseases can be caused by _______.

Answer 5

pathogens, environmental factors, and nutritional deficiencies.

Question 6

What is the primary method of transmission for bacterial diseases in plants?

Answer 6

Water, insects, and contaminated tools.

Question 7

Name a common fungal disease of crops.

Answer 7

Powdery mildew.

Question 8

What type of pathogen is downy mildew?

Answer 8

Fungus.

Question 9

Which crop is commonly affected by rust diseases?

Answer 9

Wheat.

Question 10

True or False: Environmental conditions play no role in the development of plant diseases.

Answer 10

False.

Question 11

What are nematodes?

Answer 11

Microscopic worms that can cause diseases in plants.

Question 12

Multiple Choice: Which of the following is a viral disease? A) Blight B) Mosaic C) Wilt

Answer 12

B) Mosaic.

Question 13

What is the role of insects in plant disease transmission?

Answer 13

Insects can act as vectors, spreading pathogens from infected to healthy plants.

Question 14

Name one method of controlling plant diseases.

Answer 14

Crop rotation.

Question 15

What is a symptom of root rot?

Answer 15

Wilting and yellowing of leaves.

Question 16

True or False: Plant diseases can only be caused by living organisms.

Answer 16

False.

Question 17

What is the term for a disease that spreads quickly among plants?

Answer 17

Epidemic.

Question 18

Fill in the blank: Fungal diseases often spread through _______.

Answer 18

spores.

Question 19

What is the significance of identifying plant disease symptoms early?

Answer 19

Early identification allows for timely intervention and management.

Question 20

What type of crop is often affected by late blight?

Answer 20

Potatoes.

Question 21

Name a method of disease prevention in plants.

Answer 21

Using disease-resistant varieties.

Question 22

What is the impact of plant diseases on agriculture?

Answer 22

They can lead to reduced crop yields and economic losses.

Question 23

True or False: Soil quality does not influence the occurrence of plant diseases.

Answer 23

False.

Question 24

What is a common sign of a viral infection in plants?

Answer 24

Mosaic patterns on leaves.

Question 25

Multiple Choice: Which of the following is NOT a method of transmission? A) Air B) Soil C) Sunlight

Answer 25

C) Sunlight.

Question 26

What role do sanitation practices play in managing plant diseases?

Answer 26

Sanitation practices help prevent the spread of pathogens.