Crop Diseases
Agricultural Science · 50 practice questions
Identification of disease-causing organisms in store and field; diseases caused by fungi, bacteria, nematodes and viruses (symptoms, damage, transmission, control); side effects of control methods (pollution, poisoning, ecosystem disruption).
- Distinguish between common store and field disease-causing organisms.
- Relate diseases to their damage, symptoms and spread, and apply appropriate control methods.
- Relate each control method to its side effects.
Try a few questions
- Practice question 1
Integrated Disease Management (IDM) mainly involves
- A.relying exclusively on a single chemical fungicide for all situations
- B.combining multiple compatible strategies for effective, sustainable disease control
- C.ignoring disease presence until a crop has completely failed
- D.a strategy applicable only to livestock, not crops
Show the answer
B. combining multiple compatible strategies for effective, sustainable disease control
IDM blends various tactics rather than depending on any single control method.
- Practice question 2
A bacterial crop disease is mainly caused by
- A.a virus replicating within host cells
- B.a fungus forming spores on plant surfaces
- C.a nutrient deficiency in the soil
- D.single-celled, microscopic bacteria invading plant tissue
Show the answer
D. single-celled, microscopic bacteria invading plant tissue
Bacterial diseases result from bacterial pathogens infecting plant tissue.
- Practice question 3
Anthracnose, a common fungal disease, mainly appears as
- A.a bright yellow, powdery coating on leaves
- B.a mottled pattern of light and dark green
- C.dark, sunken lesions on leaves, stems or fruits
- D.a complete absence of any visible symptom
Show the answer
C. dark, sunken lesions on leaves, stems or fruits
Anthracnose classically produces dark, sunken necrotic lesions.
More UTME Agricultural Science topics
- Factors of Agricultural Production
- Farm Surveying and Farmstead Planning
- Forms and Classification of Major Farm Animals in West Africa
- Meaning and Scope of Agriculture
- Rocks and Soil Formation
- Basic Economic Principles
- General Terminologies in Animal Production
- Importance of Agriculture
- Simple Farm Tools
- Soil Water and Soil Conservation
- Agricultural Ecology
- Anatomy and Physiology of Farm Animals
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