Q.1 Khaira disease of rice is controlled by spraying_________.
Copper sulphate Manganese sulphate Zinc sulphate
Q.2 The disease responsible for the great Bengal famine in 1942-43 is________.
Rice blast Brown spot of rice Wheat rust
Q.3 ‘Mosaic’ is the specific symptoms produced only by____________.
Virus Phytoplsama Viroid
Q.4 Sooty or charcoal like powdery mass usually appearing on floral organs particularly the ovary, leaf, stem and roots is_________.
Smut Bunt Sooty mould
Q.5 Only one disease cycle occurring per season in___________.
Monocyclic diseases Polycyclic diseases Polyetic diseases
Q.6 The alternate host for pearl millet (bajra) rust is_______.
Brinjal Mustard Tomato
Q.7 The fungal disease related to the discovery of gibberellins is_________.
Rice blast Foolish seedling disease of rice Rice false smut
Q.8 The direct infection and loss of floral organs as well as seed occurs in___________.
Karnal bunt of wheat Ergot of pearl millet Both
Q.9 Which of the following rust is not caused by fungi ?
Black rust Yellow rust Red rust
Q.10 Black, yellow and brown rust are generally caused by__________.
Puccinia spp. Uromyces spp. Both
Q.11 In contrast to black rust, white rust is_____.
Autoecious rust A disease of crucifers Both
Q.12 A group of diseases caused by basidiomycetes are_______.
Mildew Smut Ergot
Q.13 Flooding is the effective method to control_______.
Fusarium Phytophthora Ustilago
Q.14 The typical example of monocyclic diseases is______.
Loose smut of wheat Sesame phyllody White rust of mustard
Q.15 Bacterial rot of wheat ears is also known as_________.
Spike blight Yellow slime disease Both
Q.16 Brown rust of wheat is caused by_________.
Puccinia striiformis Puccinia graminis tritici Ustilago tritici
Q.17 Loose smut of wheat is a__________.
Soil borne disease Internally seed borne disease Air borne disease
Q.18 Grassy shoot disease is caused by__________.
Bacteria Algae Phytoplasma
Q.19 The pith of the red rot affected cane emits_________.
Alcoholic smell Fried-egg like smell Rotten fish like smell
Q.20 Ear showing honey dew symptoms is characteristic feature of___________.
Green ear of bajra Grain smut of bajra Ergot of bajra
Q.21 Red rot of sugarcane is also known as_______.
Red smut Net rood snot Both
Q.22 The order ‘Peronosporales’ include pathogen causing_________.
Damping off White rusts Both
Q.23 Which of the following smut of sorghum is not a seed-borne disease ?
Grain smut Long smut Loose smut
Q.24 Phyllody is caused by_________.
Bacteria Fungi Phytoplasma
Q.25 The mode of infection in ergot of bajra is_________.
Shoot infection Seedling infection Local infection of blossom
Number of score out of 25 = Score in percentage =
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