entomology Mcqs
251. Cotesia flavipers is endo larval parasite of_________________?
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A. Sugarcane black borer

B. Sugarcane stem borer

C. Sugarcane root borer

D. Sugarcane top borer

252. A level of resistance show by a cultivar is similar against all insect biotype such type of resistance is__________________?
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A. General resistance

B. Cross resistance

C. Specific resistance

D. Vertical resistance

253. Example of inorganic pesticides are__________________?
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A. calcium cyanide, boric acid

B. Oxygen, sulfur

C. Phosphorus, chlorine

D. Chlorine, nitrogen

254. Cotton bollworms, sugarcane borers are_________________?
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A. Major pest

B. Minor pest

C. Key pest

D. Secondary pest

255. The parasites which requires several or different hosts for its complete development is called ?
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A. Heteroxenous parasites

B. Monoxenous parasite

C. Phytophagous parasites

D. Entomophagous parasites

256. Propagation and release of sterile incompatible individuals is done in pest population is called:____________?
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A. Genetic control

B. both A & B

C. Chemical control

D. None of these

257. The parasite which are capable of developing upon a few closely related host species is called_______________?
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A. Polyhagous parasites

B. Oligophagous parasites

C. Facultative parasites

D. Transitory parasites