(With Phase) is common in which ?
1.Bacteria blight of Paddy
2.Blast of Paddy
3.White rust of Crucifers
4.Red rot of Sugarcane
Acervuli is _____ shaped
1.Round
2.Oblate
3.Saucer
4.Conical
Anthracnose of Grape is also known as?
1.Birds-eye disease
2.Black spot
3.Buck eye rot
4.more than one option is correct
Choose the wrong combination?
1.Ziram = Cuman
2.Esso fungicide = Copper oxychloride
3.Thiram = Hexathir
4.Zineb = Kitazin
Dry root rot of legumes and beans is caused by?
1.Macrophomina
2.Erysiphe
3.Xanthomonas
4.None
Exclusion of plant disease by legislation is known as
1.Plant quarantine
2.Disease resistance
3.Biological control of plant
4.None
Fusarium belong to which order?
1.Moniliales
2.Melaconiales
3.Sporobolomycetales
4.Cryptococcales
Gelatin plate technique was discovered by?
1.Louis Pasteur
2.Burrill
3.Fanny Hesse
4.Robert Koch
Genus Radopholus of nematode was first described in 1893 on the basis of a male specimen obtained from necrotic roots of _____ growing in Fiji Islands?
1.Sugarbeet
2.Sugarcane
3.Banana
4.Coconut
Heterocious nature of rust means
1.A fungus require one host species to complete life cycle
2.A fungus require two different host species to complete life cycle
3.A and B
4.None
Heterodera belongs to super family?
1.Tylenchoidea
2.Atylenchoidea
3.Neotylenchoidea
4.Heteroderoidea
How much quantity of nematicide is used to control the nematodes in one hectare are?
1.20-25 kg
2.23-27 kg
3.30-35 kg
4.None
In bacterial brown rot and wilt of potato the amount of _____ produced by pathogens are proportional to severity of symptoms
1.Lipids
2.Gibberellins
3.Proteins
4.Polysncchnride
In fermentation industry, pasteurization is done at _____ temperature
1.100.0 C
2.62.8 C
3.80.0 C
4.90.0 C
In which rust pustules are arranged in end-to-end manner and forming strip?
1.Orange rust
2.Yellow rust
3.Black rust
4.White rust
Irish famine was caused due to
1.Wheat rust
2.Apple scab
3.Late blight of potato
4.Tomato wilt
Late blight of potato is caused by
1.Phytophthora infestans
2.Alternaria solani
3.Xanthomonas campestris pv. Citrii
4.Sychytriu endobioticum
Leaf roll of potato is caused by
1.Virus
2.Fungus
3.Bacterium
4.Mycoplasm
Leaf roll of potato is transmitted by?
1.M. persicae
2.M. pseudosolani
3.M. circumflexum
4.All
Levillula is a
1.Endoparasitic
2.Ectoparasitic
3.A and B
4.None
Lichen is an association between?
1.Fungus and Virus
2.Algae and Fungus
3.Bacterium and Fungus
4.Fungus and Nematode
Linseed rust is caused by ?
1.Melampsora lini
2.Uromyces
3.Physaqmidium
4.Ravenelia
Loose smut of wheat can be effectively controlled by
1.Seed treatment with systemic fungicides
2.Crop rotation
3.Soil treatment with non-systematic fungicides
4.Spraying the crop with fungicides
Loose smut of wheat is a disease called as?
1.Internally seed borne
2.Air borne
3.Externally seed borne
4.None
Meloidogyne belongs to which group?
1.Semi-ectoparasite
2.Semi-endoparasite
3.Ecotoparasite
4.Endoparasite
Micro organisms were first observed by?
1.L.J. Thernard
2.John Tyndall
3.Antony Van Leeuwenhock
4.None
Microbiology is the science of which we study?
1.Viruses
2.Fungi
3.Bacteria
4.All
Modification of floral parts into leafy structures by pathogenic infection called?
1.Hypertrophy
2.Hyperplasia
3.Phyllody
4.Witchs broom
Most effective fungicide against powdery mildew disease?
1.Captan
2.Dithane
3.Karathane
4.None
Most of the plant parasitic nematodes belong to which order?
1.Dorylaimida
2.Aphelenchida
3.Rhabditida
4.Tylenchida
Mycology is the study of?
1.Bacteria
2.Fungi
3.Algae
4.Virus
Mycoplasma disease of plant was first reported by which of the following ?
1.Anton de Barry
2.Brefeld
3.Doi et al. and Ishire et al.
4.Butler
Mycoplasma is sensitive to which of the following ?
1.Tetracycline
2.Pencillin
3.Steptomycin
4.Bavistin
Nematode genus Hoplolaimus Daday was first recorded in _____ from an island in the Paraguay river
1.1905
2.1910
3.1915
4.1920
Nematodes are also called as?
1.Earthworms
2.Tapeworms
3.Trematodes
4.None
Oil from American elm seed contains 55 per cent capric acid toxic to Ceratocystis uimi the pathogen causing the famous _____ disease
1.Dutch elm
2.English elm
3.French elm
4.American elm
Once the pathogen has established in an area, steps taken to remove or destroy is known as?
1.Exclusion
2.Protection
3.Eradication
4.Management
Pectinolytic enzymes of plant pathogens play a major role during pathogenesis in which diseases?
1.Wilts, damping-off and root/foot rots
2.Downy mildew
3.Powdery mildew
4.None
Phycomycetes belong to which of the following?
1.Algae
2.Fungi
3.Yeast
4.Bacteria
Phytophthera belongs to which family?
1.Peronophythoraceae
2.Pareonosporaceae
3.Pythiaceae
4.None
Plant overgrowth due to increase in size of cell of the which of the following tissue ?
1.Hypertrophy
2.Hypoplasia
3.Hyperplasia
4.None
Plant parasitic nematodes posses how many part oesophagus?
1.Four part oesophagus
2.Three part oesophagus
3.One part oesophagus
4.Two part oesophagus
Which among the following caused Powdery mildew disease?
1.Bacterium
2.Fungus
3.Yeast
4.None
Which among the following Plant pathogenic viroids contains?
1.Externally seed-borne and soil-borne disease
2.Externally seed-borne disease
3.Air-brone disease
4.None
Which of the following disease caused by Phyllactinis?
1.Powdery mildew
2.Leaf spot
3.Downy mildew
4.Blight
Which of the following is belong to the family of Powdery mildew fungi?
1.Hypocereaceae
2.Hypomycetaceae
3.Erysiphaceae
4.None
With regard to nutrition Erysiphe is
1.Endoparasite
2.Predator
3.Ectoparasite
4.None
Wrong information about Powdery mildew is
1.Order = Erysiphales
2.Subdivision = Ascomycotina
3.Family = Melanconiaceae
4.None
Yellow ear rot of wheat is caused by?
1.Corynebacterum
2.Anguina
3.A and B
4.None
Yellow pigment in the culture is produced by?
1.Erwinia
2.Pseudomonas
3.Xanthomononas
4.Agrobacterium