Plant Disease

11.	Which is the most responsible factor for plant diseases?
	A. mildew
	B. bacteria
	C. Virus
	D. protozoa Option”A” is correct

12.	Plants are made disease resistant?
	A. thermally
	B. by hormonal action
	C. breeding from wild variety
	D. by colvicin action Option”C” is correct

13.	Green ear disease is related to which crop?
	A. Mustard
	B. Rice
	C. Millet
	D. Groundnut Option”C” is correct

14.	Tikka disease is related to which crop?
	A. Mustard
	B. Rice
	C. Millet
	D. Groundnut Option”D” is correct

15.	The famous disease of paddy ‘Khair disease’ is caused by?
	A. due to mildew
	B. caused by bacteria
	C. due to virus
	D. due to zinc deficiency Option”D” is correct

16.	What causes red rust disease in tea?
	A. bacteria
	B. lichen
	C. fungus
	D. green algae Option”D” is correct

17.	What causes canker of lemon?
	A. fungus
	B. bacteria
	C. Virus
	D. nematodes Option”B” is correct

18.	Which stage of the insect usually causes more damage when it attacks the crops?
	A. egg
	B. pupa
	C. keter pillar
	D. imago Option”C” is correct

19.	Milibug is related to which crop?
	A. Mustard
	B. Wheat
	C. Common
	D. Eggplant Option”A” is correct

20.	What causes the wet port disease of the plant?
	A. pythium dibarianum
	B. peronospola parascientica
	C. pytophthora infestans
	D. albugo candida Option”A” is correct

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