A. Seeds
B. Agricultural machinery and implements
C. Winds, insects
D. All the above

A. Rice
B. Wheat
C. Sugarcane
D. Okra

A. Rhizowhtnia solani
B. phytophilorea infesta
C. phytophithoua spri
D. phytophytora cupri

A. Locomotion organ
B. Sensory organ
C. Sex organ
D. None of the above

A. Disease transmitter
B. Vector
C. Pest
D. Parasite

A. Organo-phosphate
B. Organo-chlorine
C. Pyrethroids
D. Carbamates

A. Organo-chlorine group
B. Pyrethroid group
C. Carbamate group
D. Organo-phosphate

A. Fungi
B. Bacteria
C. Nematodes
D. Gassicls

A. Fungicides
B. Cultural practices
C. Cultural practices and growing resistant varieties
D. Can not be controlled

A. High temperature
B. High humidity
C. Susceptible varieties
D. All the above