PLANT PATHOLOGY MCQs

1. The sucking type insects of cotton are ________________?

A. Jassids and thrips

B. Wlutefly and jassids

C. Thrips and whitefly

D. All the of above

2. The sucking type insects pesis are controlled by________________?

A. Chlorinated hydrocarbons

B. Pyrethroids

C. Organo-phosphatcs

D. Botanical pesticides

3. The granular formulation are commonly applied to control_______________?

A. Jassids and thrips

B. Leaf minors

C. Fruit and stem borers

D. Whitefly

4. Cockroach cutworms grass hoopers, stem borer and fruit borers are______________?

A. Sucking type insects

B. Chewing type insects

C. Jumping type insects

D. None of these

5. Thread like structure surrounding the pupal stage of the insect (Silk worm) is_________________?

A. Silk

B. Typhoon

C. Cocoon

D. None of these

6. The heart like pumping organ in insect is_________________?

A. Vena Cava

B. Dorsal Vessel

C. Spiracles

D. None of these

7. Insects have_________________?

A. 11 segments

B. 12 segments

C. 20 segments

D. None of these

8. Three regions of insect body are________________?

A. Head, abdomen and tail

B. Head, thorax and tail

C. Head, thorax and abdomen

D. None of these

9. The larval stage of flies (Diptera) is known as_________________?

A. Grub

B. Cocoon

C. Maggot

D. Worm

10. Which of the following are cold blooded animals___________________?

A. Human beings

B. Insects

C. Rodents

D. Protozon

11. The substance used to treat pesticide poisoning is called as_________________?

A. Detoxicant

B. Anti-poison

C. Antitode

D. Anti-pseudo

12. The viral disease can be controlled by_________________?

A. Organo-chlorine pesticides

B. Growing resistant varieties

C. Pyrethroids

D. None of these

13. Whip smut is disease of________________?

A. Wheat

B. Maize

C. Rice

D. Sugarcane

14. The fungus belonging to order Erysiphales cause_________________?

A. Blights

B. Smuts

C. Powdery mildew

D. None of these

15. Lathyrism is nervous disease caused by____________________?

A. Consumption of high carbohydrate foods

B. Consumption of matter over longer periods

C. Low protein foods

D. All of the above

16. Bemesia tabbaci is the name of_________________?

A. Cutworms

B. Jassids

C. White fly

D. Thrips

17. Heliothus armigera is the name of_____________________?

A. American bollwarm

B. Gram pod borer

C. Com cob borer

D. Cotton bollwarm 

18. The beneficial relationship between two organisms living together is called__________________?

A. Symbiosis

B. Osmosis

C. Common salism

D. None of these

19. The most devastating migratory pest is____________________?

A. Cutworm

B. Army worm

C. Locust

D. None of these 

20. The symptoms of powdery mildew appears on________________?

A. Roots

B. Floral parts

C. Foliage of plants

D. None of these