A. Albugo candida

B. Ustilago tritici

C. Puccinia grminis

D. Syncytrium endobioticum

A. Internally seed borne  

B. Externally seed borne

C. Air borne   

D. Soil borne

A. slime molds

B. bread molds

C. black molds

D. blue molds

A. Fungi

B. Bacteria

C. Nematodes

D. Gassicls

A. Uromyces

B. Melampsora lini

C. Physaqmidium  

D. Ravenelia

A. 1952

B. 1954

C. 1956

D. 1958

A. Linseed smut

B. Linseed rust

C. Both a and b

D. Root knot 

A. Walker (1957)    B.           

B. Stakman & Harrar (1957)

C. Whittaker (1969) 

D. Ainsworth (1973)

A. fusion of gametes

B. fusion of vegetable cells

C. contact between two gametes

D. copulation between gametangia

A. Fungicides

B. Cultural practices

C. Cultural practices and growing resistant varieties

D. Can not be controlled