20 MCQs related to Diseases Affecting Banana Plants - Healthy Banana Plants - A Guide to Identifying and Preventing Common Diseases
20 MCQs related to Diseases Affecting Banana Plants - Healthy Banana Plants - A Guide to Identifying and Preventing Common Diseases
Banana plants are susceptible to a number of diseases, including Black Sigatoka, Yellow Sigatoka, Fusarium Wilt, Moko Disease, Anthracnose, and Bunchy Top. These diseases can cause significant damage to banana plants and reduce yields. To prevent banana plant diseases, it is important to use clean planting material, practice good sanitation, use resistant varieties, rotate crops, and use fungicides and bactericides.
Healthy Banana Plants: A Guide to Identifying and Preventing Common Diseases
1. What is the most common fungal disease affecting banana plants?
A) Bacterial Wilt
B) Panama Disease
C) Black Sigatoka
D) Banana Bract Mosaic Virus
Answer: C) Black Sigatoka
Explanation: Black Sigatoka, caused by the fungus Mycosphaerella fijiensis, is a major foliar disease affecting banana plants.
2. Which pathogen causes Panama Disease in bananas?
A) Xanthomonas campestris
B) Fusarium oxysporum
C) Banana streak virus
D) Pseudomonas syringae
Answer: B) Fusarium oxysporum
Explanation:
Panama Disease is caused by the soil-borne fungus Fusarium oxysporum f. sp. cubense.
3. What are the characteristic symptoms of Banana Bract Mosaic Virus?
A) Yellowing of leaves
B) Mosaic patterns on bracts
C) Wilting of stems
D) Bumpy fruits
Answer: B) Mosaic patterns on bracts
Explanation:
The Banana Bract Mosaic Virus causes mosaic patterns on the bracts of banana plants.
4. Which bacterial disease affects banana plants causing wilting and yellowing of leaves?
A) Black Sigatoka
B) Panama Disease
C) Bacterial Wilt
D) Banana streak disease
Answer: C) Bacterial Wilt
Explanation:
Bacterial Wilt, caused by the bacterium Ralstonia solanacearum, leads to wilting and yellowing of banana leaves.
5. What is the primary mode of transmission for Banana bunchy top virus?
A) Soil
B) Aphids
C) Water
D) Fungal spores
Answer: B) Aphids
Explanation:
The Banana bunchy top virus is primarily transmitted by aphids.
6. Which disease is also known as "Yellow Sigatoka"?
A) Black Sigatoka
B) Panama Disease
C) Banana streak disease
D) Banana bunchy top disease
Answer: A) Black Sigatoka
Explanation:
Black Sigatoka is often referred to as "Yellow Sigatoka" due to the yellowing of banana leaves.
7. What is the primary symptom of Banana streak disease?
A) Leaf spots
B) Yellow streaks on leaves
C) Malformation of fruits
D) Wilting of stems
Answer: C) Malformation of fruits
Explanation:
Banana streak disease causes malformation of fruits.
8. Which disease affects banana plants by causing a characteristic "moko" symptom on fruits and stems?
A) Banana Bract Mosaic Virus
B) Panama Disease
C) Moko Disease
D) Black Sigatoka
Answer: C) Moko Disease
Explanation:
Moko Disease, caused by the bacterium Ralstonia solanacearum, leads to a characteristic "moko" symptom on fruits and stems.
9. What is the mode of transmission for Banana streak virus?
A) Soil
B) Insects
C) Fungal spores
D) Planting material
Answer: D) Planting material
Explanation:
Banana streak virus is primarily transmitted through infected planting material.
10. Which disease causes necrotic lesions on banana leaves and affects the vascular system of the plant?
- A) Black Sigatoka
- B) Panama Disease
- C) Banana streak disease
- D) Banana Xanthomonas Wilt
Answer: D) Banana Xanthomonas Wilt
Explanation:
Banana Xanthomonas Wilt causes necrotic lesions on leaves and affects the vascular system of the plant.
11. What is the primary symptom of Banana bunchy top disease?
- A) Stunted growth
- B) Mosaic patterns on leaves
- C) Bunchy appearance of leaves
- D) Yellowing of leaves
Answer: C) Bunchy appearance of leaves
Explanation:
Banana bunchy top disease leads to a bunchy appearance of leaves.
12. Which disease is commonly known as "Toppling Disease"?
- A) Banana Bract Mosaic Virus
- B) Banana bunchy top disease
- C) Moko Disease
- D) Banana Xanthomonas Wilt
Answer: B) Banana bunchy top disease
Explanation:
Banana bunchy top disease is often referred to as "Toppling Disease" due to the toppling of affected plants.
13. Which of the following diseases is caused by a phytoplasma and is transmitted by insects?
- A) Black Sigatoka
- B) Banana streak disease
- C) Banana bunchy top disease
- D) Banana wilt disease
Answer: C) Banana bunchy top disease
Explanation:
Banana bunchy top disease is caused by a phytoplasma and is transmitted by insects, primarily aphids.
14. What is the main control measure for managing Black Sigatoka in banana plantations?
- A) Fungicide application
- B) Removing infected plants
- C) Insecticide application
- D) Crop rotation
Answer: A) Fungicide application
Explanation:
Fungicide application is a common control measure for managing Black Sigatoka.
15. Which variety of bananas is resistant to certain strains of Fusarium oxysporum causing Panama Disease?
- A) Cavendish
- B) Plantain
- C) Lady Finger
- D) Gros Michel
Answer: A) Cavendish
Explanation:
Some varieties of Cavendish bananas exhibit resistance to certain strains of Fusarium oxysporum causing Panama Disease.
16. What is the primary control measure for managing Banana streak virus?
- A) Removal of infected plants
- B) Fungicide application
- C) Insecticide application
- D) Crop rotation
Answer: A) Removal of infected plants
Explanation:
The primary control measure for Banana streak virus is the removal of infected plants to prevent further spread.
17. Which disease is also known as "Bunchy Top Disease" in bananas?
- A) Black Sigatoka
- B) Banana streak disease
- C) Banana bunchy top disease
- D) Banana Xanthomonas Wilt
Answer: C) Banana bunchy top disease
Explanation:
Banana bunchy top disease is also known as "Bunchy Top Disease."
18. What is the primary means of managing Banana Xanthomonas Wilt?
- A) Fungicide application
- B) Removing infected plants
- C) Insecticide application
- D) Crop rotation
Answer: B) Removing infected plants
Explanation:
The primary means of managing Banana Xanthomonas Wilt is to remove infected plants and practice strict sanitation measures.
19. Which disease is characterized by the presence of bacterial ooze from the cut stems of infected plants?
- A) Banana Bract Mosaic Virus
- B) Panama Disease
- C) Moko Disease
- D) Banana Xanthomonas Wilt
Answer: D) Banana Xanthomonas Wilt
Explanation:
Banana Xanthomonas Wilt is characterized by the presence of bacterial ooze from the cut stems of infected plants.
20. What is the primary control measure for managing Banana Bract Mosaic Virus?
- A) Removal of infected plants
- B) Fungicide application
- C) Insecticide application
- D) Use of virus-free planting material
Answer: D) Use of virus-free planting material
Explanation:
The primary control measure for managing Banana Bract Mosaic Virus is the use of virus-free planting material to prevent the introduction of the virus.
#drvivasayam
#drvivasayamcropcareservices
#drmnarayanan
#drask24dotcom