entomology Mcqs
201. The lowest pest population that will cause economic damage is called ___________________?
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A. None of the Above

B. Economic damage

C. Economic injury level

D. Economic threshold level

202. What KD50____________________?
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A. Highly knock down

B. Medium knock down

C. None of above

D. Low knock down

203. Function of endo cuticle is________________________?
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A. Rigidity of body parts

B. Impermeability of water

C. Prevent evaporation

D. Extensiblity of integument and flexibility
204. The use of all possible control strategies to manage the pest population below economic injury level is called:_______?
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A. IPC

B. Pest outbreak

C. IPM

D. Pest resugrgence

205. The pesticide are derived from naturally occuring element with out carbon is called________________?
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A. Inorganic pesticide

B. Organic pesticide

C. Natural pesticide

D. Fumigants

206. Gurdaspur borer is a pest of_________?
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A. Rice

B. Wheat

C. Sugarcane

D. Cotton

207. Mouthparts of Sugarcane pyrilla are:___________?
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A. Chewing

B. Biting

C. Sucking

D. Siphoning

208. A substance that destructive to nerve tissue is called____________________?
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A. Neurotoxin

B. Toxicant

C. Swath

D. Drift

209. What is antidote of organophosphate and carbamate poisoning________________?
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A. None of the Above

B. Earbiturates

C. Atropine

D. Diazepam

210. Syrphid flies have type of larvae________________?
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A. Eruiform

B. Platy form

C. Carabiform

D. vermiform

211. Aphis lions are predator of___________________?
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A. Sugarcane borer

B. Aphid

C. Pyrilla

D. Jassid

212. A poison produced by a plant, animal or organisms is called____________________?
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A. Toxicant

B. Neurotoxin

C. Toxin

D. None of the Above

213. Population prediction of a particular species with in the field is called____________________?
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A. Haemospora

B. Pest scouting

C. Fore casting

D. Surveillance

214. Termite workers are_________________?
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A. None of above

B. A non reproductive female

C. May be a non reproductive male or non reproductive female

D. A non reproductive male

215. The chemical used for controlling of mites is called__________________?
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A. Nematicide

B. Nematicide

C. Mollusicide

D. Acaricide
216. Desert locust is__________________?
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A. Migrant pest

B. Occasional pest

C. Potential pest

D. Key pest

217. Best example of predators are____________________?
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A. Trichograma species

B. Dragonflies, Aphid lions, Lady bird beetle, flower beetle

C. Dragon flies, Aphid lions,

D. Lady beetle, flower beetle

218. What types of insects are injurious__________________?
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A. Agricultural pest, house hold pest, Store grain, insects of domestic animals

B. Agricultural pest, house hold, Store grain, Pollinators

C. Agricultural pest, Parasite, Predator

D. Store grain, Parasite, Predator

219. Queen and drones have_______________number of chromosome ?
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A. Haploid

B. Triploid

C. Diploid

D. None of above

220. Type of reproduction in which young ones are produced by larval or pupal stages is____________________?
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A. Viviparity

B. Paedogenesis

C. Polyembryony

D. Polyembrony

221. Which insect cut the root of plants____________________?
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A. Gryllobllated

B. Pyrilla

C. Mole cricket

D. Ground beetles

222. Volatile chemical which exist in the gaseous state in sufficient concentration to be lethal for a given pest is called ?
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A. Arsenicals pesticide

B. Pyrethorid

C. carbamate

D. Fumigant
223. The largest insect of the world___________________?
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A. Locust

B. Elephant beetle

C. Hairy winged beetle

D. Grasshopper

224. A tail, including the tail-like structure of an aphid:_______?
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A. Cauda

B. Annulate

C. Apical

D. Cenchri

225. Difference between workers and drones _____________________?
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A. Drones are sterile while workers are sterile

B. Drones are female while workers are sterile

C. None of the above

D. Drones are male while workers are sterile
226. Lac is produced by insect_________________?
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A. Bombyx mori

B. Apis cerana

C. Apis dorsata

D. Laceifera lacca
227. Death of an insect from a single dose is called__________________?
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A. Chronic poisoning

B. Defoliant

C. Bait

D. Acute poisoning
228. Parthenogenetic reproduction in which both male and female offspring are produced from unfertilized eggs:
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A. None of the above

B. Amphitoky

C. Ambulacrum

D. Anholocyclic

229. Types of pheromone which motivate the insects to follow each other is known as____________________?
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A. Sex pheromone

B. Alarm pheromone

C. Aggregation pheromone

D. Trial marking pheromone
230. Commercial production of lac through lac insects is called___________________?
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A. Sericulture

B. Floriculture

C. Apiculture

D. Lac culture
231. Fire flies are________________?
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A. Beetles

B. Flies

C. Wasps

D. Fleas

232. Some insects which are used as bio control agents for used control is called________________?
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A. Entomophagous parasites

B. None of the Above

C. Zoophagous parasites

D. Phytophagous parasites

233. A mixture of active and inert ingredients is called_________________?
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A. Inert ingredient

B. Formulation

C. Active ingredient

D. Dose

234. The ingredient of pesticide formulation responsible for toxic effect is called_________________?
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A. Insert ingredient

B. Active ingredient

C. Pesticide

D. Dose

235. A dose of a toxicant that kills 50% of the exposed organism is called_________________?
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A. LC<sub>50</sub>

B. LD50

C. LD<sub>75</sub>

D. None of the Above

236. Which insect have bacteria and in their digestive system_______________?
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A. Silver fish

B. None

C. Termites

D. Ants

237. Insect that parasitic other insects are called_________________?
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A. non of theses

B. Zoophagous parasites

C. Entomophagous parasites

D. Phytophagous parasites

238. Cypermethrin, deltamerthrin, permethrin are example of__________________?
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A. Organophosphrous

B. Organochlorine

C. Carbamate

D. Pyrethroids
239. A substance used in a pesticide, it helps the spray material to adhere to the sprayed surface is called_________________?
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A. Agitation

B. Adhesive

C. Adjuvant

D. Activator

240. Main kind of insect pests are___________________?
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A. Major pest & Minor pest

B. Migrant pest & potential pest

C. both A & B

D. None of the above

241. Those insects which lives in groups, clones or tribes form are called__________________?
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A. Household insects

B. Gregarious insects

C. Social insects

D. Solitary insects

242. The amount of pest induced injury to the crop which will justify the cost of artificial control measures is called________________?
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A. None of the Above

B. Economic damage

C. Economic injury level

D. Economic threshold

243. All the practices used to control the pest population with in certain limit are called_________________?
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A. Artificial control

B. Chemical control

C. Cultural control

D. Natural control

244. Jassid, Aphid and bugs have________________?
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A. Piecing sucking type

B. Siphoning type

C. Rasping

D. Sponging type

245. Hymenoptera are almost_______ long.
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A. 0.03 mm

B. 0.3 mm

C. 0.02 mm

D. 0.2 mm
246. The ability of a plant by means of which it is less damaged by insects is________________?
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A. Tolerance

B. Plant resistance

C. Resistance

D. Pest avoidance

247. The body of an insect is covered by a protective __________________ formed from chitin and protein. Depending upon its precise composition and thickness, the cuticle may be soft and flexible or hard and rigid; according to requirements, it may or may not be permeable or waterproof:
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A. Six- layered skin (cuticle)

B. None of the above

C. three-layered skin (cuticle)

D. Two-layered skin (cuticle)

248. What is function of deterrent__________________?
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A. Chemical which prevent feeding

B. None of the above

C. Prevent feeding and oviposition of an insect

D. Prevent ovipositon of an insect

249. What is the family of mosquito________________?
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A. Tineidae

B. Pyralidae

C. Bombicidae

D. Culicidae
250. The concentration of a toxicant that kills 50% of the exposed organism is called_________________?
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A. LC50

B. LD<sub>50</sub>

C. LD<sub>75</sub>

D. None of the Above