Plant Diseases
Biology ⇒ Plant Biology
Plant Diseases starts at 7 and continues till grade 12.
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See sample questions for grade 7
Describe how plant viruses are usually spread.
Describe one way farmers can reduce the risk of plant diseases spreading in their fields.
Describe one way plant diseases can affect food production.
Describe what is meant by 'disease cycle' in plant pathology.
Explain why crop rotation helps prevent plant diseases.
Explain why overwatering can lead to plant diseases.
Explain why using disease-resistant plant varieties is important in agriculture.
Name one example of a viral plant disease.
Which of the following is a bacterial plant disease?
(1) Downy mildew
(2) Fire blight
(3) Rust
(4) Smut
Which of the following is a common symptom of viral plant diseases?
(1) Leaf curling
(2) Root nodules
(3) Increased chlorophyll
(4) Thicker bark
Which of the following is a method of chemical control for plant diseases?
(1) Using fungicides
(2) Hand-picking insects
(3) Pruning
(4) Crop rotation
Which of the following is a method to prevent plant diseases?
(1) Overwatering
(2) Crop rotation
(3) Planting the same crop every year
(4) Ignoring infected plants
Fill in the blank: _______ are tiny living things that can cause diseases in plants, such as bacteria, fungi, and viruses.
Fill in the blank: _______ is a bacterial disease that causes yellowing and wilting in plants like tomatoes and potatoes.
Fill in the blank: _______ is a common fungal disease that appears as a white powdery coating on leaves.
Fill in the blank: _______ is a disease caused by a fungus that affects cereal crops and produces black, powdery spores.
True or False: All plant diseases are caused by living organisms.
True or False: All plant diseases are visible to the naked eye.
True or False: All plant diseases can be cured with chemicals.
True or False: Environmental factors like drought or pollution can cause plant diseases.
