Font size
WorksheetsASRB 2
Total questions: 140
Worksheet time: 1hrs 10mins
Which pattern of population dispersion is observed the most frequently in insects?
Clumped
Random
Uniform
None of these
Which is/are density-dependent factors affecting insect population?
Spatial restrictions
Host-parasite reactions
Food restrictions
All of these
Non hexapod blood feeding arthropod is_____
Mosquitoes
Bed bugs
Ticks
Fleas
Communication chemicals that benefits the receiver but disadvantage the producer are known as______
Kairomones
Allomones
Synomones
Apneumones
Degree days or degree hours are the number of days/hours multiplied by the number of ___________ above a threshold temperature.
Weeks
Degrees
Days
hours
They are most active between dawn and dusk.
Crepuscular insects
Diurnal insects
Nocturnal insects
All of these
They are most active during dusk.
Crepuscular insects
Diurnal insects
Nocturnal insects
All of these
Nocturnal insects are most active__________
Between dawn and dusk.
During dusk
During day
Between dusk and dawn.
Insects feeds on the woods would be classified as:
Xylophages
Caprophages
Herbivores
Carnivores
From the following which is/are give the adaptive advantages to the producing organisms?
Repellents
Suppressents
Deterrents
All of these
From the following which is/are give the adaptive advantages to the receiving organisms?
Attractants
Arrestants
Feeding stimulants
All of these
Sometimes immature insects mature precociously and are able to reproduce, this phenomenon is known as ______.
Paedogenesis
Polyembryony
Viviparity
None of these
In which order(s) parthenogenesis types of reproduction is not recorded?
Odonata
Siphonaptera
Dermeptera
All of these
In which order(s) parthenogenesis types of reproduction is recorded?
Odonata
Siphonaptera
Dermeptera
Hemiptera
In which type of reproduction only males are produced?
Thelytoky
Amphitoky
Arrhenotoky
Paedogenesis
In which type of reproduction only females are produced?
Thelytokya
Amphitoky
Arrhenotoky
Paedogenesis
In which type of reproduction individuals of both sexes may be produced?
Thelytoky
Amphitoky
Arrhenotoky
Paedogenesis
The separation of the old cuticle from the new during moulting is known as _________.
Apolysis
Ecdysis
Apophysis
Apomixis
It is a male reproductive organ.
Aedeagus
Vagina
Spermatosis
Spermatheca
In which insect(s), male is eaten by the female after mating?
Katydids
Mantids
Ladybird beetle
Both a and b
Mechanisms that allow insect to survive periods of often extreme cold.
Cryptoprotection
Chill tolerance
Aestivation
Hibernation
Which pair is /are correct?
Cockroach : Aggregation pheromone
Ants : Trail-marking pheromone
Honey bees : Alarm pheromone
All of these
Which is/are reason(s) for insect pest outbreaks?
Monoculture and varietal susceptibility
Pest invasion
Killing of natural enemies and resistance to pesticide in pest
All of these
The study of individual organisms or species in relation to their habitat is known as _______
Autecology
Synecology
Demecology
None of these
Which density-dependent factor restricting increase of insect population?
Quantity of food
Quality of food
Climate
Soil type
A type of thiourea derivatives that acts as acaricide/insecticide through potent inhibitor of mitochondria ATP synthesis.
Clothianidin
Difenthiuron
Avermectins
Chlorfenapyr
Which compound (s) is/are chitin synthesis inhibitor (s)?
Novaluron
Buprofezin
Lufenuron
All a, b, & c
A type of resistance in which resistant insects may absorb the toxin slower than susceptible insects due to development of barriers against products.
Penetratio resistance
Behavioural resistance
Metabbolic resistance
Altered target site resistance
Which insecticide act as a potent blocker of the GABA regulated chloride channel in neurons?
Fipronil
Etophenprox
Tefluthrin
Fenvalerate
Who discovered insecticidal property of DDT?
Gerhard Schrader
Paul Muller
Geigy
Othnar Zeidler
The carbamates was first invented by____
Gerhard Schrader
Paul Muller
Geigy
Riemschneider
Who discovered the DDT molecule?
Paul Muller
Riemschneider
Othnar Zeidler
Geigy
Who discovered the parathion from Germany during 1944?
Gerhard Schrader
Paul Muller
Geigy
Othnar Zeidler
Which insecticides have been reported to cause resurgence of whiteflies and aphids?
Cypermethrin, Fenvalerate
Endosulphan, DDT
Monocrotophos, Carbaryl
Quinalphos, Chlorpyriphos
Which is the first synthetic pyrethroid?
Allethrin
Deltamethrin
Cypermethrin
Fenvalerate
From the following which insecticide(s) exert quick knock down effect?
Dichlorvos
Methomyl
Cypermethrin
All (a), (b) and (c)
Under which group dimethoate is classify on the basis of chemical nature?
Phosphate
Phosphorothiolate
Phosphorodithiolate
Phosphorothionate
Under which group oxymethyl demeton is classify on the basis of chemical nature?
Phosphate
Phosphorothiolate
Phosphorodithiolate
Phosphorothionate
Which insecticide is systemic insecticide?
Ethion
Indoxacarb
Quinalphos
Spinosad
From the following which pair is incorrect
Quinalphos : Contact insecticide
Imidacloprid : Systemic insecticide
Phosphamidon : Contact insecticide
Dichlorvos : Contact & Fumigant insecticide
From the following which insecticide has longer persistence?
Imidacloprid
Dichlorvos
Azadirectin
NPV
If the acute dermal LD-50 of an insect is 50 mg/kg, then:
One insect can be killed with 50 mg of the product.
50 insects can be killed with 50 mg of the product.
50% of the insects can be killed with 50 mg of the product.
None of these
What is the generally accepted mode of action for organophosphate insecticides?
Chitin inhibitor
Cholinesterase inhibitor
Stomach poison
Respiratory toxin
Compared to first generation pesticides, the newer second and third generation compounds are:
More selective and less persistent
More persistent and less selective.
More toxic and less selective.
None of these.
Which class of chemical insecticides is characterized by a relatively high degree of environmental persistence?
Carbamates
Synthetic pyrethroids
Organophosphates
Chlorinated hydrocarbons
Organophosphate and carbamate insecticides work by disrupting an insect's:
Digestive system
Endocrine system
Nervous system
Respiratory system
Which insecticide is a member of oxadiazine class of insecticide?
Indoxacarb
Fipronil
Chlorfenapyr
Flubendiamide
Which insecticide has been found more toxic to pyrethroid resistant population of Helicoverpa armigera.
Fipronil
Indoxacarb
Chlorfenapyr
Flubendiamide
Which insecticide is a second-generation neonicotinoid?
Imidacloprid
Acetamiprid
Thiomethoxam
None of these
Which molecule is produced by actenomycete, Sacchaopolyspora spinosa, under natural fermentation conditions?
Indoxacarb
Novaluron
Spinosad
Abamectin
Which insecticide is useful as foliar, seed treatment, soil drench and stem application?
Imidacloprid
Monocrotophos
Quinalphos
Chlorpyriphos
Which insecticide(s) is/are commercialized neonicotinoid(s)?
Imidacloprid
Clothianidin
Thiacloprid
All of these
The term DT 50 is used for _____
Time for 50% of organism to die
Time for 50% of organism to disappear
Time for 50% of molecule to disappear
None of these
Mechanism of insecticide resistance include (s)_____
Increased behavioural avoidance
Accelerated excretion
Biochemical detoxification
All a, b, & c
The International Code of Conduct on the Distribution and Use of Pesticides was adopted by FAO Council with a focus on _____
Protection of human and environmental health
Risk reduction
Support for sustainable agricultural development by selectively using pesticides as an IPM components
All of these
Recently banned insecticides that was considered as a safe insecticide for pollinators is____
Malathion
Monocrotophos
Endosulfan
DDT
Chemicals used to kill slug and snails is known as_______
Acaricide
Molluscicide
Insecticide
Nematicide
Chemicals used to kill mites is known as_______
Acaricide
Molluscicide
Insecticide
Nematicide
One of the ingredients used in universal antidote is
Acetic acid
Activated Charcoal
Phenol
Glycerin
Insecticide having high LD 50 value indicate
Highly toxic
Less toxic
Neutral
None of these
Which is used as effective sticking and spreading agents?
Coal tar
Phenol
Teepol
Neem oil
When was ‘Insecticide Act’ enforced and effectively implemented in India?
1968
1970
1969
1971
From the following, which institute exempted from phytosanitory restrictions.
IARI
SAUs
State Department of Agriculture
ICAR
From the following, which institute is not exempted from phytosanitory restrictions.
IARI
IVRI
SAUs
Zoological Survey of India
Method of plant protection in which exclusion of all plant materials or commodities are classed as hosts of the insects.
Embargoes
Survey of Pest Status
Controlled Exportation
None of these
When was first legislative Act passed to stop entry of agricultural pests in India?
1906
1968
1914
1972
The first legislative Act passed to stop the entry of which crop pest.
Cotton Boll Weevil
San Jose Scale
Apple Wooly Aphid
Tea Mosquitoes Bug
When ‘Destructive Insects and Pests Act’ was passed in India
1906
1968
1914
1972
A legal restriction to prevent the entry and establishment of plant disease or insect pests in an area where the disease or pest does not exist is referred under_________.
Plant Quarantine
Insecticide Act-1968
Phytosanitation
None
The institute ‘Forest Research Institute’ exempted from phytosanitary restrictions is located at ___________
Dehra Dun
New Delhi
Kolkata
Mukteshwar
The institute ‘Zoological Survey of India’ exempted from phytosanitary restrictions is located at ___________
Dehra Dun
New Delhi
Kolkata
Bengaluru
Which commodities have been totally banned for import
Groundnut, Ginned cotton
Bt cotton, Maize, Coffee
Raw Tobacco, Unginned cotton
Bt maize, Bt brinjal seed
When was Insecticide Act amended?
1972, 1977, 2000
1971, 2000, 2012
1971, 1972, 2003
1972, 1986, 2005
The domestic quarantine is enforced for preventing entry of ____
San jose scale
Sugarcane stem borer
Apple wooly aphid
Banana pseudostem borer
When ‘Prevention of Food Adulteration Act’ was enforced in India?
1939
1968
1954
1972
For which function(s) Government of India has set up a Central Insecticides Laboratory?
To analyze samples of pesticides
To determine toxicity of insecticides
To analyze samples for pesticide residues
All (a), (b) and (c)
Which insecticide has contact, stomach and fumigant action?
Dichlorvos
Monocrotophos
Malathion
Deltamethrin
Insecticides used for seed treatment against sucking pests
Diazinon
Malathion
Chlorpyriphos
Imidacloprid
Root / stem injection of monocrotophos is recommended against____
Mango stem borer
Coconut blck headed caterpillar
Tea mosquito bug
Coffee stem borer
Which insecticide is suitable for whorl application to manage stem borer in maize crop?
Monocrotophos 36 SL
Methyl parathion 2% Dust
Carbofuran 3 G
Azadirectin 5 EC
Source of rotenone pesticide is
Seeds of neem
Roots of Darris
Leaves of tobacco
Roots of Rynia
The International Code of Conduct on the Distribution and Use of Pesticides was adopted by the FAO Council with a focus on _______
Risk reduction
Support for sustainable agricultural development by selectively using pesticides as an IPM components
Protection of human and environmental health
All of these
In preparation of direct application of insecticides, inert possessing low sorptivity and high bulk density are called _
Carriers
Diluents
Stabilizers
Formulators
From the following which fumigant(s) is/ are in gas form at ordinary temperatures?
Methyl bromide
Ethylene dibromide
Ethylene oxide
Both (a) and (c)
From the following which fumigant(s) is/ are in liquid form at ordinary temperatures?
Ethylene dibromide
Carbon tetrachloride
Ethylene dichloride
All (a), (b) and (c)
When was world's worst industrial disaster Bhopal Accident happened?
2 December, 1984
31 December, 1987
2 December, 1981
31 December, 1994
Which molecule(s) has / have properties of insecticide as well as acaricide?
Fenazaquin
Buprofezin
Chlorfenapyr
All of these
Which insecticide inhibits the mitochondrial electron transport chain?
Fenazaquin
Indoxacarb
Buprofezin
Spinosad
Which is the highest pesticide consumer country in the world?
USA
Tiwan
Japan
India
Which crop receives the largest share of pesticides in India as well as world?
Cotton
Sugarcane
Rice
Vegetables
What amount of the insecticide applied to a crop reaches the target pests?
< 1%
> 99%
10-20%
0.0001%
When the LD 50 value of the insecticide is 1-50 then insecticide is ______
Highly toxic
Extremely toxic
Moderately toxic
None of these
If LD 50 value is >15000 then insecticide is ______
Moderately toxic
Highly toxic
Relatively harmless
Practically nontoxic
The time required for half of the initial deposit to dissipate is referred as_______
I 50
DT 50
RL 50
KD 50
Which insecticide is classified under phosphorodithiolate group?
Dimehtoate
Methyl parathion
Monocrotophos
Methyl-o-demeton
Which insecticide is classified under phosphorothiolate group?
Dimehtoate
Methyl parathion
Monocrotophos
Methyl-o-demeton
Which insecticide is classified under phosphate group?
Dimehtoate
Methyl parathion
Monocrotophos
Methyl-o-demeton
Which insecticide is classified under phosphorothionate group?
Dimehtoate
Methyl parathion
Monocrotophos
Methyl-o-demeton
Which insecticide is/are classified under phenyl carbamate group?
Carbaryl
Carbosulfan
Carbofuran
All of these
Which insecticide is classified under Oxime carbamate group?
Methomyl
Propoxur
Carbaryl
Carbosulfan
Following term(s) is/are related with pesticide residues
MRL
ADI
GAP
All of these
When was the first report of resistance development in insect to an insecticide?
1908
1939
1968
19
The bacterium, Bacillus thuringiensis is extensively used due to its ____
High virulence with narrow host specificity
Low cost
Ease of application
All of these
Genetic manipulation of pest insects is useful in development of_____
Pest resistant variety
Pheromone trap
Sterile insect technique
None of these
Parasitoids that develops on dead or parasitized host is known as_______
Idiobionts
Koinobionts
Symbionts
Exosymbionts
Parasitoids that develops in/on living hosts that will die when the parasitoids are fully developed is known as______
Idiobionts
Koinobionts
Symbionts
Abionts
A chemical released from cotton that attracts Chrysoperla carnea.
Caryophyllene
Gossypol
Gramine
Glucosinolates
Who includes “gene or gene products” in expanded definition of biological control?
World Health Organization
US National Academy of Sciences
Food and Agricultural Organization
NCIPM
The goal of inundative /inoculative release of biological control agents is/are______
Permanent establishment of bioagent in agroecosystem
To prevent damage, when the control due to natural enemies occur too late
To control pest when natural enemies are absent
Both (b) and (c)
Which of the following is effective against Helicoverpa armigera?
Ha Nuclear polyhedral virus
Nematodes
Bacillus papillae
Rickettsia
Which of the following is effective against white grubs?
Ha Nuclear polyhedral virus
Nematodes
Bacillus papillae
Bacillus thurengiensis
Chemicals that can attract the opposite sex of the same species are called_____
Hormone
Pheromone
Kairomone
Synomone
Which organism is considered as universal predator?
Ladybird beetle
Birds
Spider
Frogs
Larva of which predator carries host exuviae and remainants on its back after feeding?
Ladybird beetle
Syrphid fly
Mallada sp.
Chrysoperlla carnea
When parasite attacks on another parasite it is known as _______
Hyperparasitism
Polyparasitism
Multiparasitism
Superparasitism
Coccinellid predators are most active during ________
Bright sunny hours
Cloudy hours
Cusky hours
Night hours
Epiricania melanoleuca is ______
Lepidopteran predator
Endoparasite
Ectoparsite
Dipteran parasitoid
Which is not larval parasitoid?
Cotesia flavipes
Goniozus indicus
Xanthopimpla stemmator
Stermiopsis inferens
Which is not egg parasitoid?
Goniozus indicus
Tricogramma chilonis
Telenomus sp.
Chelonus blackburni
Which insect stage is parasitized by Xamthopimpla sp.?
Pupa
Egg
Larva
Adult
Which insect stage is parasitized by Epiricania melanoleuca
Pupa
Egg
Larva
Adult
Which bioagent is the most effective against sugarcane pyrilla?
Epiricania melanoleuca
Goniozus indicus
Brumoides suturalia
Cheilomers sexmaculata
Developing resistant or tolerant natural enemies towards pesticides is an example of ______
Conservation
Colonization
Augmentation
Importation
From which country, an exotic weevil, Neochetina bruchi was introduced in India for management of water hyacinth?
USA
Brazil
Australia
Trinidad
Which insect was found effective for the management of congress grass, Parthenium hysterophorus?
Neochetina bruchi
Dactylopius confusus
Zygogramma bicolorata
Teleonemia scrupulosa
Which insect gave effective control of Opuntia vulgaria (Prickly pear) in North and Central India during middle of 19th century?
Neochetina bruchi
Dactylopius ceylonicus
Zygogramma bicolorata
Teleonemia scrupulosa
Water fern, Salvinia molesta was effectively suppressed and controlled by _____
Zygogramma bicolorata
Neochetina bruchi
Cryptobagous salviniae
Dactylopius tementotus
Which order has no member of insect predator?
Coleoptera
Odonata
Hemiptera
Phasmida
Which host insect is highly popular amongst the biocontrol scientist for its utility in mass rearing of many useful bioagents?
Spodoptera litura
Tribolium castaneum
Corcyra cephalonica
Mealy bugs
Economic Threshold Levels (ETLs) are very dynamic and differ based on________
Crop value
Management cost
Degree of injury
All of these
Considering economic pest management, which statement is correct to begin pest management practices?
Farmer should wait until pest densities reach the economic injury level.
When pest appears in the field
Densities of pest reaches economic threshold level
When both pest and its enemies appears in the field
The most recent approaches of insect control is
Biological control
IPM
Chemical control
Mechanical control
National Research Center for Integrated Pest Management is located at____
New Delhi
Kernal
Ludhiana
Hissar
Pheromone trap attracts___
Both male and female
None of these
Female only
Male only
Clipping of young seedling to eliminate of egg mass off
Yellow stem borer
Grass hopper
Stem borer
Brown plant hopper
Erection of bird perches in/near field for insectivores birds is an ideal example of ______
Conservation
Augmentation
Importation
None of these
Which chemical(s) has/have the ability to sterilize insects?
Tepa
Hempa
Apholate
All of these
What is/are the main cause(s) of insect resurgence?
Host favourable to pests
High fecundity of pests
Suppression of natural enemies
All of these
Trapping of rodent is an ideal example of __________
Cultural control
Mechanical control
Natural control
Physical control
Which insect pest control method is/are autocidal method(s)?
Antifeedants
Genetic control
Repellents
Chemostrilants
