entomology MCQs – Page 12

Practise focused entomology questions with marked answers for exam preparation and subject revision.

entomology Mcqs

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

Showing 221 to 240 of 257 mcqs