Mock Test - Plant Pathology and Entomology
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Question No. 1
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Who is considered the Father of Plant Pathology in India?
A.
Anton de Bary
B.
E.J. Butler
C.
Julius Kuhn
D.
K.C. Mehta
Question No. 2
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Which of the following fungicides was discovered by P.M.A. Millardet in 1882?
A.
Burgundy mixture
B.
Bordeaux mixture
C.
Chaubattia paste
D.
Mancozeb
Question No. 3
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The Irish Potato Famine of 1845 was caused by which pathogen?
A.
Alternaria solani
B.
Ralstonia solanacearum
C.
Fusarium oxysporum
D.
Phytophthora infestans
Question No. 4
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Which tagma of an insect body is primarily responsible for locomotion?
A.
Head
B.
Abdomen
C.
Thorax
D.
Cephalothorax
Question No. 5
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What is the primary excretory organ in most insects?
A.
Nephridia
B.
Malpighian tubules
C.
Green glands
D.
Flame cells
Question No. 6
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Ergot of bajra is caused by which of the following fungi?
A.
Sclerospora graminicola
B.
Claviceps fusiformis
C.
Puccinia penniseti
D.
Tolyposporium penicillariae
Question No. 7
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Which insect acts as the vector for the Rice Tungro Virus (RTV)?
A.
Brown planthopper
B.
Whitebacked planthopper
C.
Green leafhopper
D.
Rice gundhi bug
Question No. 8
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Bacterial leaf blight of rice is caused by?
A.
Pseudomonas syringae pv. oryzae
B.
Xanthomonas campestris pv. campestris
C.
Erwinia chrysanthemi
D.
Xanthomonas oryzae pv. oryzae
Question No. 9
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Loose smut of wheat is an example of which type of disease?
A.
Externally seed-borne
B.
Internally seed-borne
C.
Soil-borne
D.
Air-borne
Question No. 10
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Karnal bunt of wheat is caused by which pathogen?
A.
Tilletia caries
B.
Urocystis tritici
C.
Tilletia indica
D.
Ustilago nuda
Question No. 11
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Panama wilt of banana is caused by?
A.
Bacteria
B.
Fungi
C.
Virus
D.
Phytoplasma
Question No. 12
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Citrus canker is caused by?
A.
Xanthomonas axonopodis pv. citri
B.
Pseudomonas syringae
C.
Candidatus Liberibacter asiaticus
D.
Citrus tristeza virus
Question No. 13
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Which order do powdery mildew fungi belong to?
A.
Uredinales
B.
Ustilaginales
C.
Erysiphales
D.
Peronosporales
Question No. 14
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Tikka disease is a serious problem in which crop?
A.
Cotton
B.
Groundnut
C.
Soybean
D.
Sugarcane
Question No. 15
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White rust of crucifers is caused by?
A.
Albugo candida
B.
Alternaria brassicae
C.
Pythium aphanidermatum
D.
Phytophthora drechsleri
Question No. 16
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Most plant pathogenic bacteria are morphologically?
A.
Gram-positive cocci
B.
Gram-negative rods
C.
Gram-positive spirals
D.
Gram-negative cocci
Question No. 17
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Viroids differ from viruses because they possess?
A.
Protein coat and RNA
B.
Naked DNA only
C.
Naked RNA only
D.
Lipid envelope and DNA
Question No. 18
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Phytoplasmas are highly sensitive to which of the following antibiotics?
A.
Penicillin
B.
Streptomycin
C.
Tetracycline
D.
Amoxicillin
Question No. 19
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Khaira disease of rice is a physiological disorder caused by the deficiency of?
A.
Iron
B.
Zinc
C.
Manganese
D.
Boron
Question No. 20
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The Great Bengal Famine of 1943 was primarily associated with which rice disease?
A.
Blast
B.
Bacterial Leaf Blight
C.
Brown Spot
D.
Tungro
Question No. 21
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Vector for the transmission of Tomato Leaf Curl Virus is?
A.
Aphid
B.
Thrips
C.
Whitefly
D.
Leafhopper
Question No. 22
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The bunchy top disease of banana is transmitted by?
A.
Pentalonia nigronervosa
B.
Bemisia tabaci
C.
Thrips tabaci
D.
Myzus persicae
Question No. 23
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Which pathogen causes little leaf of brinjal?
A.
Fungus
B.
Phytoplasma
C.
Nematode
D.
Virus
Question No. 24
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Whip smut of sugarcane is caused by?
A.
Sporisorium scitamineum
B.
Colletotrichum falcatum
C.
Ustilago maydis
D.
Puccinia melanocephala
Question No. 25
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Insects that undergo complete metamorphosis are known as?
A.
Ametabolous
B.
Paurometabolous
C.
Hemimetabolous
D.
Holometabolous
Question No. 26
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Pink bollworm is a destructive pest of which crop?
A.
Rice
B.
Sugarcane
C.
Cotton
D.
Chickpea
Question No. 27
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Helicoverpa armigera is commonly known as?
A.
Gram pod borer
B.
Spotted bollworm
C.
Pink bollworm
D.
Stem borer
Question No. 28
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Dead heart and white earhead symptoms in rice are caused by?
A.
Gall midge
B.
Yellow stem borer
C.
Leaf folder
D.
Brown planthopper
Question No. 29
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Which pest attacks rice specifically at the milking stage of the grain?
A.
Stem borer
B.
Gundhi bug
C.
Hispa
D.
Swarming caterpillar
Question No. 30
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White grubs are considered national pests. They belong to which insect order?
A.
Lepidoptera
B.
Hemiptera
C.
Coleoptera
D.
Orthoptera
Question No. 31
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In pest management, what does ETL stand for?
A.
Economic Threat Limit
B.
Ecological Threshold Level
C.
Economic Threshold Level
D.
Entomological Toxicity Level
Question No. 32
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Bacillus thuringiensis (Bt) primarily acts as what type of poison to insects?
A.
Contact poison
B.
Fumigant
C.
Systemic poison
D.
Stomach poison
Question No. 33
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The first synthetic organic insecticide widely used in agriculture was?
A.
DDT
B.
Endosulfan
C.
Malathion
D.
Carbaryl
Question No. 34
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Pyrilla perpusilla is a major sucking pest of?
A.
Wheat
B.
Sugarcane
C.
Mustard
D.
Cotton
Question No. 35
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The Diamondback moth is a notorious pest of which group of crops?
A.
Cucurbits
B.
Solanaceous vegetables
C.
Crucifers
D.
Legumes
Question No. 36
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Which insect is known as an internal feeder in stored grain systems?
A.
Rust red flour beetle
B.
Rice weevil
C.
Saw-toothed grain beetle
D.
Khapra beetle
Question No. 37
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Where is the wax gland located in the honey bee (Apis mellifera)?
A.
Head of queen
B.
Thorax of worker
C.
Abdomen of worker
D.
Abdomen of drone
Question No. 38
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The lac insect (Kerria lacca) is primarily reared on which host plants?
A.
Mulberry and Castor
B.
Butea, Ziziphus, and Schleichera
C.
Mango and Guava
D.
Teak and Sal
Question No. 39
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The Headquarters of the Central Insecticides Board and Registration Committee (CIBRC) is located in?
A.
New Delhi
B.
Faridabad
C.
Hyderabad
D.
Bengaluru
Question No. 40
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Johnston's organ in insects is located on which part of the antenna?
A.
Scape
B.
Pedicel
C.
Flagellum
D.
Club
Question No. 41
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Trichogramma chilonis is widely used in agriculture as an?
A.
Egg parasitoid
B.
Larval parasitoid
C.
Pupal parasitoid
D.
Adult predator
Question No. 42
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Which crop disease is caused by the nematode Anguina tritici?
A.
Root-knot of tomato
B.
Ear cockle of wheat
C.
Molya disease of barley
D.
Citrus decline
Question No. 43
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Bakanae or 'foolish seedling' disease of rice led to the discovery of which plant hormone?
A.
Auxin
B.
Cytokinin
C.
Gibberellin
D.
Abscisic acid
Question No. 44
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Streptomycin, widely used against plant pathogenic bacteria, was discovered by?
A.
Alexander Fleming
B.
Selman Waksman
C.
Louis Pasteur
D.
Robert Koch
Question No. 45
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Aeciospores of the wheat rust fungus Puccinia graminis tritici are produced on which host?
A.
Wheat
B.
Oats
C.
Barberry
D.
Thalictrum
Question No. 46
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Root-knot nematodes belong to which genus?
A.
Heterodera
B.
Meloidogyne
C.
Pratylenchus
D.
Globodera
Question No. 47
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Vitavax (Carboxin) is specifically used for the control of?
A.
Rust diseases
B.
Smut diseases
C.
Powdery mildews
D.
Bacterial blights
Question No. 48
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The perfect (sexual) stage of Colletotrichum falcatum is?
A.
Glomerella tucumanensis
B.
Gibberella fujikuroi
C.
Magnaporthe oryzae
D.
Thanatephorus cucumeris
Question No. 49
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Cuscuta (Dodder) is an example of a?
A.
Total root parasite
B.
Partial root parasite
C.
Total stem parasite
D.
Partial stem parasite
Question No. 50
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Striga species are economically important parasitic weeds known as?
A.
Total root parasites
B.
Partial root parasites
C.
Total stem parasites
D.
Partial stem parasites
Question No. 51
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Insects have an open circulatory system. The fluid circulating in their body cavity is called?
A.
Blood
B.
Lymph
C.
Haemolymph
D.
Plasma
Question No. 52
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Piercing and sucking type of mouthparts are characteristically found in the order?
A.
Orthoptera
B.
Hemiptera
C.
Coleoptera
D.
Odonata
Question No. 53
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Which type of antennae are found in male mosquitoes?
A.
Pilose
B.
Plumose
C.
Clavate
D.
Serrate
Question No. 54
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The modified forewings of beetles (Order: Coleoptera) are called?
A.
Halteres
B.
Tegmina
C.
Hemelytra
D.
Elytra
Question No. 55
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Which order of insects is characterized by having modified hindwings called halteres?
A.
Hymenoptera
B.
Diptera
C.
Lepidoptera
D.
Neuroptera
Question No. 56
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Spodoptera litura is commonly known as?
A.
Tobacco caterpillar
B.
Cabbage looper
C.
Bihar hairy caterpillar
D.
Fall armyworm
Question No. 57
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Which is the primary storage pest of pulses in India?
A.
Sitophilus oryzae
B.
Callosobruchus chinensis
C.
Tribolium castaneum
D.
Rhizopertha dominica
Question No. 58
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The economic injury level (EIL) is defined as?
A.
The lowest population density that will cause economic damage
B.
The level where a pest begins to feed
C.
The maximum pest population a plant can tolerate
D.
The point at which pesticide should be applied
Question No. 59
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Endosulfan belongs to which chemical class of insecticides?
A.
Organophosphates
B.
Carbamates
C.
Organochlorines
D.
Pyrethroids
Question No. 60
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Which of the following is a systemic insecticide?
A.
Chlorpyrifos
B.
Imidacloprid
C.
Cypermethrin
D.
Quinalphos
Question No. 61
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The pathogen responsible for powdery mildew of wheat is?
A.
Puccinia recondita
B.
Blumeria graminis f.sp. tritici
C.
Urocystis agropyri
D.
Pyrenophora tritici-repentis
Question No. 62
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A characteristic symptom of the root-knot nematode (Meloidogyne spp.) infection is?
A.
Foliar necrosis
B.
Root galls
C.
Stem bleeding
D.
Seed discoloration
Question No. 63
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Which of the following describes the feeding habit of aphids?
A.
Chewing and biting
B.
Siphoning
C.
Piercing and sucking
D.
Sponging
Question No. 64
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In integrated pest management (IPM), what does biological control involve?
A.
Using synthetic chemicals
B.
Using natural enemies of pests
C.
Crop rotation
D.
Hand-picking insects
Question No. 65
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Identify the correct scientific name for the mustard aphid.
A.
Aphis gossypii
B.
Myzus persicae
C.
Lipaphis erysimi
D.
Brevicoryne brassicae
Question No. 66
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The fungal fruiting body consisting of a closed, spherical structure is called?
A.
Apothecium
B.
Perithecium
C.
Cleistothecium
D.
Pycnidium
Question No. 67
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Which virus is responsible for the Papaya ring spot disease?
A.
Geminivirus
B.
Potyvirus
C.
Tospovirus
D.
Cucumovirus
Question No. 68
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Insect antennae consist of which three basic segments?
A.
Coxa, Trochanter, Femur
B.
Scape, Pedicel, Flagellum
C.
Prementum, Mentum, Submentum
D.
Cardo, Stipes, Galea
Question No. 69
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Which mouthpart is analogous to the upper lip in insects?
A.
Labium
B.
Mandible
C.
Maxilla
D.
Labrum
Question No. 70
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A disease that occurs continuously in a particular region with moderate severity is termed?
A.
Epidemic
B.
Pandemic
C.
Sporadic
D.
Endemic
Question No. 71
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The term 'epidemiology' in plant pathology specifically refers to the study of?
A.
Fungal morphology
B.
Disease outbreaks and disease development in populations
C.
Cellular mechanisms of resistance
D.
Fungicide synthesis
Question No. 72
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The concept of the 'Disease Triangle' includes which three components?
A.
Pathogen, Vector, Environment
B.
Host, Pathogen, Environment
C.
Host, Pathogen, Time
D.
Pathogen, Temperature, Humidity
Question No. 73
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Spiracles in insects are primarily associated with which physiological system?
A.
Digestive system
B.
Nervous system
C.
Respiratory system
D.
Reproductive system
Question No. 74
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Which pest is known to cause the 'hopper burn' symptom in rice fields?
A.
Green leafhopper
B.
Rice hispa
C.
Brown planthopper
D.
Rice leaf folder
Question No. 75
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National Bureau of Agricultural Insect Resources (NBAIR) is located at?
A.
New Delhi
B.
Hyderabad
C.
Bengaluru
D.
Lucknow
Question No. 76
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Bacterial wilt of solanaceous crops is caused by?
A.
Erwinia carotovora
B.
Ralstonia solanacearum
C.
Pseudomonas syringae
D.
Xanthomonas campestris
Question No. 77
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Golden nematode is a globally important quarantine pest of which crop?
A.
Wheat
B.
Potato
C.
Rice
D.
Cotton
Question No. 78
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The causal agent of Sesamum phyllody is transmitted by?
A.
Aphids
B.
Whiteflies
C.
Leafhoppers
D.
Thrips
Question No. 79
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The 'Silkworm' (Bombyx mori) feeds almost exclusively on the leaves of?
A.
Castor
B.
Mulberry
C.
Teak
D.
Oak
Question No. 80
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Canker in plants is typically a symptom characterized by?
A.
Abnormal elongation of stems
B.
Localized dead areas on the bark or stem
C.
Yellowing of leaf veins
D.
A powdery white coating on leaves
Question No. 81
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The study of plant diseases caused by nematodes is known as?
A.
Mycology
B.
Virology
C.
Phytobacteriology
D.
Plant Nematology
Question No. 82
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Which group of insecticides works by inhibiting the enzyme acetylcholinesterase (AChE)?
A.
Pyrethroids
B.
Neonicotinoids
C.
Organophosphates and Carbamates
D.
Avermectins
Question No. 83
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The first transgenic crop introduced for commercial cultivation in India was?
A.
Bt Brinjal
B.
Golden Rice
C.
Bt Cotton
D.
Flavr Savr Tomato
Question No. 84
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Yellow mosaic virus (YMV) is a major constraint in the production of?
A.
Wheat
B.
Mungbean (Green gram)
C.
Sugarcane
D.
Cotton
Question No. 85
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Systemic Acquired Resistance (SAR) in plants is most closely associated with the accumulation of?
A.
Abscisic acid
B.
Gibberellic acid
C.
Salicylic acid
D.
Ethylene
Question No. 86
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Identify the pest that deposits eggs inside plant tissues using a saw-like ovipositor?
A.
Fruit fly
B.
Sawfly
C.
Stem borer
D.
Cutworm
Question No. 87
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Which of the following is an example of an inorganic fungicide?
A.
Mancozeb
B.
Metalaxyl
C.
Sulfur
D.
Carbendazim
Question No. 88
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Pheromone traps primarily attract which demographic of an insect pest population?
A.
Female adults
B.
Male adults
C.
Larvae
D.
Nymphs
Question No. 89
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The fungal pathogen Magnaporthe oryzae causes which major disease?
A.
Wheat rust
B.
Rice blast
C.
Sugarcane smut
D.
Potato blight
Question No. 90
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Fungi that can live both as saprophytes on dead organic matter and as parasites on living hosts are called?
A.
Obligate parasites
B.
Obligate saprophytes
C.
Facultative saprophytes/parasites
D.
Symbionts
Question No. 91
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Which part of the insect gut is lined with a chitinous intima and is shed during molting?
A.
Only foregut
B.
Only midgut
C.
Foregut and hindgut
D.
Midgut and hindgut
Question No. 92
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The resting stage of an insect during complete metamorphosis is called the?
A.
Larva
B.
Nymph
C.
Pupa
D.
Imago
Question No. 93
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Disease forecasting for Late Blight of potato relies heavily on monitoring?
A.
Soil pH
B.
Wind speed
C.
Temperature and Relative Humidity
D.
Sunlight duration
Question No. 94
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Sucking pests like aphids and whiteflies primarily cause damage by?
A.
Chewing leaves
B.
Boring into stems
C.
Depleting plant sap and transmitting viruses
D.
Damaging root systems
Question No. 95
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Which entomological tool is used to collect flying insects using a light source at night?
A.
Sweep net
B.
Pitfall trap
C.
Light trap
D.
Berlese funnel
Question No. 96
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The term 'biotype' in entomology refers to?
A.
Insects of the same species that have developed different physiological characteristics
B.
Insects belonging to different orders but feeding on the same crop
C.
A specific classification of insect predators
D.
The biological control agent of a pest
Question No. 97
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Which of the following is a soil-borne fungal pathogen known for causing damping-off?
A.
Erysiphe
B.
Pythium
C.
Puccinia
D.
Venturia
Question No. 98
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What type of damage is typically caused by the Khapra beetle (Trogoderma granarium)?
A.
It sucks sap from stored grains
B.
It feeds only on the germ portion of the seed
C.
It feeds on the leaves of wheat in the field
D.
It causes 'dead heart' in seedlings
Question No. 99
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Apple scab is an economically significant disease caused by?
A.
Venturia inaequalis
B.
Monilinia fructicola
C.
Botrytis cinerea
D.
Podosphaera leucotricha
Question No. 100
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In insect morphology, the 'ovipositor' is a structure used for?
A.
Chewing food
B.
Breathing under water
C.
Egg-laying
D.
Injecting venom into prey
Question No. 101
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A pesticide formulation coded as 'EC' stands for?
A.
Emulsifiable Concentrate
B.
Effective Chemical
C.
Ecological Compound
D.
Eradicant Crystal
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