Mango malformation was first recognized in india from-
Uttar Pradesh
Rajasthan
Bihar (Darbanga)
Andhra Pradesh
Leaf blight of cumin is caused by -
Glomerella cingulata
Cercosporapersonata
Alternaria solani
Alternaria burnsii
Uncinula necator is a causal organism of grapevine-
Downy mildew
Powdery mildew
Anthracnose
Greymold
Spray of NAA is found effective to manage which disease of Mango
Powdery mildew
Sooty mold
Die-back
Mango malformation.
Fungus, Pyricularia (Magnoporthe) grisea causes the disease-
Leaf blight of rice
Blast of rice
Shealth blight of rice
Blast of bajra
In which of the following diseases Kreshek phase is occurred -(vvi)
Root rot of cotton
Bacteria blight of cotton
Wilt of castor
Bacterial leaf blight of rice
In which rust of wheat, lemon yellow pustules are arranged in end to end manner in rows –
Yellow rust
Brown rust
Black rust
None of the above
An example of Heteroecious rust is-
White rust of mustard
Black rust of wheat
Linseed rust
Pea rust
Which of the following is a non-systemic fungicide-
Vitavax
Dithane M-45
Ridomil MZ-72
Plantvax
Glomerella tucumanensis is a perfect stage of
Rhizoctonia solani
Aspergillus niger
Colletotrichum falcatum
Drechslera oryzae
Hill bunt of wheat is caused by-
Tilletia tritici
Ustilago tritici
Ustilago maydis
Tilletia indica
Mungbean Yellow Mosaic India Virus (MYMIV) is transme by
Aphids
White fly
Seeds
Leafhoppers
Sesame phyllody is caused by- (vvi)
Bacteria
Fungi
Phytoplasma
Virus
Collar rot of groundnut is caused by -
Aspergillus niger
Aspergillus reticulata
Aspergillus flavus
Rhizoctonia solani
Bunchy top disease of Banana is caused by-
Phytoplasma
Bacteria
Virus
Fungi
Appearance of 'Witches broom' on mango trees is a common symptom of-
Anthracnose
Mango malformation
Black tip
Powdery mildew
Colletotrichum circinans is a casual agent of-
Anthracnose of chilli
Anthracnose of guava
Smudge of onion
Anthracnose of grapes
Which of the following is not a protectant fungicide?
Thiram
Captan
Chloranil
Agroson G.N
The process of bacterial transformation was discovered by -
Zinder and Lederberg
Waksman
Griffith
Laderberg and tatum
Use of agar-agar for microbiological studies was suggested by
Anton de bary
T.J. Burril
Robert Koch
paul Enrich
Biological nature of nitrification was established by -
Hiltner
Louis Pasteur
Winogradsky
None of the above
Which one of the following is a Bacterium ?
Aspergillus
Penicillium
Nitrosomonas
None of the above
Ooze test is done for -
Fungi
Bacteria
Virus
All of the above
The concept of 'Contagium vivum fluidum' was put forward by -
Iwanovsky, 1867
Beijerinck, 1898
Stanley, 1935
Bawden an Pirie, 1911
Mesosomes are present in -
Algae
Bacterium
Protozoa
Fungi
Dithan M-45 belongs to the fungicidal group of -
Monothiocarbomate
Dithiocarbamate
Manganese organic compound
Manganese inorganic compound
On the basis of cell wall, choose odd one -
Bacteria
Fungi
Algae
Spiroplasma
The pathogen, Plasmopara viticola is related with discovery of- (vvi)
Burgundy mixture
Cheshunt compound
Bordeaux mixture
None of these
Which one is not correctly matched -
Father of Mycology- P.
Micheli
Beijerinck- Coined term virus
Gene for gene theory- Vanderplank
Once the Pathogen is estabalished in an area, steps taken to destroy are known as -
Exclusion
Eradication
Protection
None of these.
The example of host specific phytotoxin is-
Fusaric acid
Victorin
Pyricularin
None
Crop rotation to reduce soil borne inoculums will be come under
Protection
Eradication
Avoidance
Exaclusion
DIPA was imposed in India in the year -
1914
1660
1891
1909
Little leaf of brinjal is caused by -
Fungus
Bacterium
Virus
Phytoplasma
Malaria is caused by -
Toxoplasma
Plasmodium
Leishmania
Giardia
Smut' disease in plant is caused by -
Bacterium
Fungus
Algae
Protozoa
Non-symbiotic nitrogen fixation is associated with -
Rhizobium
Penicillium
Azotobacter
Pythium
The fungus commonly used as bio-pesticide-
Puccinia
Alternaria
Trichoderma
Fusarium
The bacterium involved in 'Sulphur Cycle' is -
Rhizobium
Azotobacter
Thiobacillus
Pseudomonas
Common method of asexual reproduction in bacteria is by -
Fission
Endospores
Conidia
Cysts
Chlamydospore is produced in the genus:
Cercospora
Rhizoctonia
Fusarium
Albugo
Tumours in plants are caused by -
Xanthomonas
Pseudomonas
Erwinia
Agrobacterium
The journal 'Indian Phytopathology' was started by-
Mundkar
J.F. Dastur
Mehta
K.
Haustoria are produced by –
Albugo
Sclerotium
Helminthosporium
All of above
The fungal antagonist used in disease management is -
Trichoderma
Neurospora
Rhizopus
Mucor
Black rust of wheat is caused by -
Puccinia
Puccinia graminis tritici
Puccinia recondita
Puccinia arachis
Endospore is produced by -
Bacillus
Rhizobium
Clavibacter
Xanthomonas
Which of the following fungicide is used as seed treatment against loose smut of wheat?
Vitavax
Kavach
Ceresan
Mancozeb
One of the following insects transmits the viruses -
White fly
Pink ball worm
Pod borer
Saw fly