Important objective mcq on insecticides
Read objective mcq on insecticides. This post includes questions from organochlorides, organophosphates, carbamates, pyrethroids, neonicotinoids, insect growth regulators, biological pesticides, and others.
Objective questions on insecticides
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Question 01. What is the mode of action of DDT?
(a). DDT functions by opening sodium channels in the nerve cells of insect.
(b). The mode of action of DDT is solubilizing itself in stomach due to high pH, and eventually killing the insect.
(c). It function by opening sodium channels in the cuticle cells of insect.
(d). None of the above.
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Question 02. Pyrethrin is present in..
(a). Tanacetum.
(b). Chrysanthemum.
(c). Both a and b.
(d). None of the above.
Question 03. Malathion is an inhibitor of..
(a). Ubiquitin carboxy-terminal hydrolase L1 inhibitor.
(b). Acetylcholinesterase inhibitor.
(c). Phosphoric monoester hydrolases inhibitor.
(d). Phosphoric diester hydrolases inhibitor.
Question 04. Chlorpyrifos is considered …. to humans
(a). Highly hazardous.
(b). Less hazardous.
(c). Moderately hazardous.
(d). No hazardous.
Question 05. Oxalic acid is useful in …. against varroa mite?
(a). Lac culture.
(b). Beekeeping.
(c). Sericulture.
(d). Poultry farming.
Also read: Store grain insect pests objective
Insecticide quiz and mock test
Question 06. Which is a miticide?
(a). Chlorpyriphos.
(b). Metasystox.
(c). Dicofol.
(d). All of the above.
Question 07. Phorate is a/an..
(a). Insecticide.
(b). Acaricide.
(c). Both a and b.
(d). None of the above.
Question 08. Thimet is the trade name of..
(a). Phorate.
(b). Lindane.
(c). Fipronil.
(d). None of the above.
Question 09. The chemical structures of pyrethrin were determined by H. Staudinger and L. Ruzicka in the year..
(a). 1921.
(b). 1922.
(c). 1923.
(d). 1924.
Question 10. Which one of the following is a PIPs?
(a). Chlorpyriphos.
(b). DDT.
(c). Bt biocidal protein.
(d). Malathion.
Question 11. How tebufenozide controls pest?
(a). Paralysis in larvae.
(b). Premature molting of larvae.
(c). Poisoning in larvae.
(d). All of the above.
Question 12. Tebufenozide is primarily used against..
(a). Caterpillar.
(b). Moth.
(c). Eggs.
(d). Pupa.
Also read: IPM multiple choice questions
Insects hormones
Question 13. The first discovery of a JH was by..
(a). John Merton Aldrich.
(b). Charles Nicholas Ainslie.
(c). Vincent Wigglesworth.
(d). Charles Paul Alexander.
Question 14. JH 0, JH I, and JH II generally belong to..
(a). Hemiptera.
(b). Coleoptera.
(c). Diptera.
(d). Lepidoptera.
Question 15. JHB3 or JH III bisepoxide is the most important juvenile hormones in.. appears to be the most important JH in the
(a). Thysanoptera
(b). Coleoptera.
(c). Diptera.
(d). Hymenoptera.
Question 16. At high levels of juvenile hormones..
(a). Larvae can still molt, but infertile male is the result.
(b). Larvae can still molt, but infertile female is the result.
(c). Either a or b.
(d). Larvae can still molt, but the result will only be a bigger larva.
Synthetic insecticides
Question 17. Which one of the following plant extract is not a biological pest control agent?
(a). Pyrethrum.
(b). Rotenone.
(c). Essential oils.
(d). None of the above.
Question 18. What is the use of rotenone?
(a). Pesticide.
(b). Insecticide.
(c). Nonselective pesticide.
(d). All of the above.
Question 19. Which is a rotenone containing plant native to plant?
(a). Pachyrhizus erosus.
(b). Derris elliptica.
(c). Tephrosia virginiana.
(d). Lonchocarpus urucu.
Question 20. Which is an organophosphate?
(a). Dichlorvos.
(b). Diazinon.
(c). Both a and b.
(d). Aldicarb.
Question 21. Which is not a carbamate?
(a). Oxamyl.
(b). Fenitrothion.
(c). Propoxur.
(d). Carbaryl.
Question 22. Which one is the active substance in the pesticide Temik?
(a). Aldicarb.
(b). Phorate.
(c). Terbufos.
(d). Thimet.
Question 23. Aldicarb is primarily a..
(a). Miticide.
(b). Larvaecide.
(c). Insecticide.
(d). Nematicide.
Question 24. Quinalphos is a..
(a). Whitish brown liquid.
(b). Red yellow liquid.
(c). Reddish brown liquid.
(d). Gray white liquid.
Question 25. Which one of the following is another name of carbofuron?
(a). Furadan.
(b). Curater.
(c). Furacarb.
(d). All of the above.
Objective MCQ on Insecticides