Important MCQ on Plant Diseases

Biology topics are considered very important nowadays for government exams like SSC, Railways, and many others. We will provide topic-wise practice questions so that students can be able to practice more and more and get most of the questions correct in this section. In this article, we will provide a Practice set from the Plant Diseases section which is considered a favorite for these exams. 

Important MCQ on Plant Diseases :

Que 1. Which of the given diseases is related to Bajra?
(a)Leaf Rust
(b)Late Blight
(c)Canker
(d)Ergot

Ans. (d) Ergot
Explanation: Ergot Disease is related to Bajra.

Que 2. Which of the given is an example of Fungal disease in plants?
(a) Bud Blight
(b) Powdery Mildew
(c) Chlorosis
(d) Curly top

Ans. (b) Powdery Mildew
Explanation: Powdery Mildew is an example of a Fungal disease, the rest are viral diseases.

Que 3. Which of the given is an example of a disease caused by a virus?
(a) Cankers
(b) Fire Bligh
(c) Spotted Wilt
(d) Leaf spot

Ans. (c) Spotted Wilt
Explanation: Spotted Wilt is a disease caused by a virus. this type of disease is mainly found in tomatoes, capsicum, etc.

Que 4. Which of the given diseases is caused by nematodes in plants?
(a) Wilts
(b) Cavity spot
(c) Scab
(d) Root-knot

Ans. (d) Root-knot
Explanation: Root-knot disease is caused by nematodes in plants. It is mainly found in tomatoes and peanuts.

Que5. Which of the given diseases is related to Groundnut?
(a) Tikka
(b) Phomopsis blight
(c) Leaf rust
(d) Alternaria blight

Ans. (a) Tikka
Explanation:  Tikka disease is related to groundnuts.

Que 6. Which of the given diseases is related to Sugarcane?
(a) Ergot
(b) Canker
(c) Red rot
(d) Late blight

Ans. (c) Red rot
Explanation: Red rot disease is related to Sugarcane.

Que 7. Find the odd one from the given options.
(a) Downy mildew 
(b) Leaf scaled
(c) Mottled stripe
(d) Ratoon stunting 

Ans. (a) Downy mildew 
Explanation: Downy mildew is a Fungal disease, Rest are Bacterial diseases.

Que 8. Which of the given diseases is related to Potatoes?
(a) Downy mildew
(b) Late blight
(c) Tikka
(d) Leaf rust

Ans. (b) Late blight
Explanation: Late blight disease is related to Potatoes.

Que 9. “Black spot, Black stripe, Brown spot” are the diseases related to?
(a) Bajra
(b) Paddy
(c) Wheat
(d) Sugarcane

Ans. (d) Sugarcane
Explanation: “Black spot, Black stripe, Brown spot” are the diseases related to sugarcane.

Que 10. Fire blight disease is related to which of the given fruits?
(a) Pineapple
(b) Orange
(c) Apple
(d) Banana

Ans. (c) Apple
Explanation: Fire blight disease is related to an apple.

Que 11. Which of the given diseases is related to Corn?
(a) Phomopsis blight
(b) Ergot
(c) Canker
(d) Anthracnose blight

Ans. (d) Anthracnose blight
Explanation: Anthracnose blight disease is related to Corn.

Que 12. Which of the following is not a plant disease?
(a) Chickenpox
(b) Tuber diseases
(c) Root rots
(d) Ring spot

Ans. (a) Chickenpox
Explanation: Chickenpox is not a plant disease. This disease is mainly found in animals.

Que 13. Which of the following diseases are caused by Bacteria in plants?
(a) Soft rots
(b) Hairy root
(c) Tuber diseases
(d) Root rots

Ans. (a) Soft rots
Explanation: Soft rots disease is caused by Bacteria in plants. It is mainly found in fleshy or succulent parts of plants.

Que 14. Which of the given diseases is related to Cumin seed?
(a) Phomopsis blight
(b) Alternaria blight
(c) Late blight
(d) Anthracnose blight

Ans. (b) Alternaria blight
Explanation: Alternaria blight disease is related to Cumin seed.

Que 15. Which of the given diseases caused due to the deficiency of copper in plants?
(a) Whiptail disease
(b) Khaira disease
(c) Dieback disease
(d) Marsh disease

Ans. (c) Dieback disease
Explanation: Dieback disease is caused due to the deficiency of copper in plants.

Que 16. Fruit cracking disease in tomatoes is mainly caused due to the deficiency of?
(a) Copper
(b) Boron
(c) Zinc
(d) Molybdenum

Ans. (b) Boron
Explanation: Fruit cracking disease is mainly caused due to the deficiency of boron in tomatoes.

Que 17. Which of the following factors are responsible for the spreading of plant diseases?
(a) Air
(b) Rainfall
(c)Birds
(d) All of the above

Ans. (d) All of the above
Explanation: All of the above-mentioned factors like air, rainfall, and birds are responsible for the spreading of plant diseases.

Que 18. Which of the given diseases is related to Wheat?
(a) Tikka
(b) Downy mildew
(c) Leaf rust
(d) Late blight

Ans. (c) Leaf rust
Explanation: Leaf rust disease is related to Wheat.

Que 19. The green year is a which type of disease?
(a) Bacterial
(b) Fungal
(c) Viral
(d) Protozoan

Ans. (b) Fungal
Explanation: The green year is a fungal disease which mainly found in Millets.

Que 20. Which of the given diseases is related to Mustard?
(a) Downy mildew
(b) Phomopsis blight
(c) Alternaria blight
(d) Red rot

Ans. (a) Downy mildew
Explanation: Downy mildew disease is related to Mustard.