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plant pathology MCQs

Practise focused plant pathology questions with marked answers for exam preparation and subject revision.

plant pathology Mcqs
1. Insects have_________________?
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A. 20 segments

B. 12 segments

C. 11 segments

D. None

2. The beneficial relationship between two organisms living together is called__________________?
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A. Common salism

B. Osmosis

C. None of the above

D. Symbiosis
3. Malathrion and Parathion insecticides belongs to_________________?
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A. Pyrethroid group

B. Carbamate group

C. Organo-phosphate

D. Organo-chlorine group

4. The larval stage of flies (Diptera) is known as_________________?
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A. Maggot

B. Cocoon

C. Worm

D. Grub

5. IPM is a pest control strategy in which__________________?
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A. Pest are controlled culturally

B. Cultural and biological control techniques are used

C. Pesticides are used

D. Predators and parasites are used

6. Collar rot in chilies is caused by___________________?
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A. phytophytora cupri

B. Rhizowhtnia solani

C. phytophithoua spri

D. phytophilorea infesta

7. The popular insecticides of organo-chlorine group are________________?
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A. Naled

B. DDT & BHC

C. Leaf minors

D. Malathion and thrips

8. The wings and legs of insects are present in___________________?
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A. Thorax

B. Abdomen

C. Head

D. Neck

9. Antenae of insect is__________________?
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A. Locomotion organ

B. Sensory organ

C. None of the above

D. Sex organ

10. Stalk root of onion is caused by________________?
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A. Gassicls

B. Fungi

C. Nematodes

D. Bacteria
11. Honey bee, bumble bee, butter flies and moths are___________________?
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A. Pests

B. Parasites

C. Pollinators

D. Productive insects

12. Viral disease can be controlled by __________________?
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A. Cultural practices and growing resistant varieties

B. Fungicides

C. Cultural practices

D. Can not be controlled

13. Which of the following is disease of rice____________________?
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A. Brown spot Ratti disease

B. Foot rot

C. Rice blast

D. All the above
14. The factors which induces disease outbreak is________________?
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A. High temperature

B. High humidity

C. All the above

D. Susceptible varieties

15. The fungus belonging to order Erysiphales cause_________________?
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A. Powdery mildew

B. Blights

C. None of the above

D. Smuts

16. Whip smut is disease of________________?
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A. Maize

B. Wheat

C. Rice

D. Sugarcane
17. Thread like structure surrounding the pupal stage of the insect (Silk worm) is_________________?
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A. Typhoon

B. None of the above

C. Cocoon

D. Silk

18. The insecticides with least mammalian toxicity are____________________?
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A. Organo-phosphate

B. Carbamates

C. Organo-chlorine

D. Pyrethroids
19. Cockroach cutworms grass hoopers, stem borer and fruit borers are______________?
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A. Jumping type insects

B. None of the above

C. Chewing type insects

D. Sucking type insects

20. Disease are transmitted through_________________?
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A. All the above

B. Seeds

C. Winds, insects

D. Agricultural machinery and implements