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91.

Pectinolytic enzymes of plant pathogens playa major role during pathogenesis in diseases like:

A.	Rusts	B.	Downy mildew
C.	Wilts, damping-off and root/foot rots	D.	Powdery mildew

92.

Phycomycetes belong to:

A.	Fungi	B.	Bacteria
C.	Yeast	D.	None of the above

93.

Phyllactinis causes the disease:

A.	Powdery mildew	B.	Downy mildew
C.	Leaf spot	D.	Blight

94.

Phytophthera belongs to family:

A.	Peronophythoraceae	B.	Pythiaceae
C.	Pareonosporaceae	D.	Albuginaceae

95.

With regard to nutrition Erysiphe is:

A.	Ectoparasite	B.	Endoparasite
C.	None of the above	D.	Predator

96.

Plant parasitic nematodes posses:

A.	Two part oesophagus	B.	Three part oesophagus
C.	Four part oesophagus	D.	None of the above

97.

Plant pathogenic viroids contain:

A.	Externally seed-borne disease	B.	Externally seed-borne and soil-borne disease
C.	Air-brone disease	D.	Inernally seed-borne disease

98.

"With Phase" is common in:

A.	Blast of Paddy	B.	Bacteria blight of Paddy
C.	White rust of Crucifers	D.	Red rot of Sugarcane

99.

Powdery mildew disease is caused by:

A.	Bacterium	B.	Fungus
C.	Virus	D.	Nematode

100.

Powdery mildew fungi belong to the family:

A.	Erysiphaceae	B.	Hypocereaceae
C.	Hypomycetaceae	D.	Nectriaceae