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221.

The incidence of red hairy catepiller occurs under one of the following conditions:

A.	High temperature and High soil moisture	B.	High temperature and Low soil mositure
C.	Low temperature and High soil moisture	D.	Low temperature and Low soil moisture

222.

Which of the following types of pump is used in a hand compression sprayer?

A.	Air or pneumatic pump	B.	Rotary pump
C.	Piston pump	D.	All of the above

223.

Which of the following types of insecticides are not used against food grain pests in storage?

A.	Organic insecticides	B.	Fumigants
C.	Inorganic insecticides	D.	All of the above

224.

The infestation of which insect starts from the field?

A.	Khapra beetle	B.	Angoumois moth
C.	Rice weevil	D.	Tobacco beetle

225.

The inorganic ions are absorbed into:

A.	Fore-gut	B.	Fat bodies
C.	Rectum	D.	None of above

226.

The insect pest which introduced in our country before the enforcement of quarantine measures:

A.	Anthonomis grandis	B.	Oxycaraenus laetus
C.	Icerya purchasi	D.	Gnorimochema helipa

227.

The insecticide is considered highly selective if VSR ranges:

A.	From 1 to 10	B.	From 10 to 100
C.	From 100 to 1000	D.	From 1000 to 2000

228.

The insects are able to maintain the balance while walking due to:

A.	Hexapod	B.	Small size
C.	Exoskeleton	D.	Wings

229.

The largest locust swarm recorded so far:

A.	100 square kilometers	B.	200 square kilometers
C.	300 square kilometers	D.	400 square kilometers

230.

The lateral movement theory of insecticidal penetration was proposed by:

A.	Gerolt	B.	Matsmura
C.	Ross	D.	Menton