Q.1 Khaira disease of rice can be controlled by spraying__________.
Copper sulphate Manganese sulphate Zinc sulphate
Q.2 The alternate host of pearl millet rust is________.
Okra Tomato Brinjal
Q.3 In contrast to black rust, white rust is__________.
Autoecious rust A disease of crucifers Both
Q.4 Brown rust of wheat is caused by_________.
Puccinia striiformis Puccinia recondita Puccinia graminis tritici
Q.5 Grassy shoot disease is caused by___________.
Bacteria Phytoplasma Spiroplasma
Q.6 Ear showing honey dew symptoms is a characteristic feature of_______.
Green ear of bajra Ergot of bajra Grain smut of bajra
Q.7 Phyllody of sesamum is caused by___________.
Virus Fungi Phytoplasma
Q.8 Which of the following is a pseudo rust?
Yellow rust of wheat Brown rust of wheat White rust of crucifers
Q.9 The whip smut of sugarcane is caused by_________.
Ustilago maydis Ustilago hordei Ustilago scitaminea
Q.10 Alternate host of black stem rust of wheat in India is______.
Mahonia sp. Barberis sp. Thalictrum sp.
Q.11 Bud-necrosis of groundnut is transmitted by_____.
Whitefly Aphid Thrips
Q.12 The wilt of cotton is______.
Seed borne Soil borne Both
Q.13 Solar heat treatment is used to control_______.
Covered smut of barley Smut of bajra Loose smut of wheat
Q.14 The first recognized virus disease of plants in the world is______.
Tobacco mosaic Cucumber mosaic Yellow vein mosaic
Q.15 Sugarcane crop appears dry and on splitting the cane white and red bunds are seen with foul smell. The disease is__________.
Red rot Wilt Whip smut
Q.16 Frog-eye leaf spot disease is present in_________.
Tobacco Potato Cotton
Q.17 In which rust, pustules are arranged in end to end manner and forming stripes ?
Yellow rust Black rust White rust
Q.18 Leaf curl of tobacco is caused by__________.
Nicotiana virus -1 Nicotiana virus -10 Phytoplasma
Q.19 Root parasite of Sorghum is____________.
Cuscuta Striga Orobanche
Q.20 Pegion pea sterility mosaic disease is transmitted by___________.
Aphid Whitefly Eryophide mite
Q.21 Chickpea stunt disease is caused by_______.
Mungbean yellow mosaic virus Leaf crinkle virus Bean leaf roll virus
Q.22 Mungbean yellow mosaic virus is secondary transmission by the vector______.
Whitefly Jassid Thrips
Q.23 Stem rot of groundnut pathogen survives in the form of_____________.
Sclerotia Chlamydospores Oospores
Q.24 Soybean mosaic is secondarily transmitted by__________.
Seeds Jassid Aphids
Q.25 Leaf blotch of turmeric is caused by_________.
Alternaria porri Colletotrichum circinans Taphrina maculans
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