MCQ’S on Pest Control
Q. The pheromone coated paper strips in the confusion technique are thrown over an area to
(a) confuse males so that they are unable to locate females
(b) repel insects from a region
(c) confuse females so that they are unable to locate males
(d) attract insects and kill them
Answer: : (a)
Q. “Devine” and “Collego” are two agricultural substances used as
(a) Insect hormones
(b) Biofertilizers
(c) Bioherbicides
(d) Natural insecticides
Answer: : (c)
Q. Rotenone is a
(a) insect hormone
(b) natural insecticide
(c) bioherbicide
(d) natural herbicide
Answer: : (b)
Q. The wild growth of ______ is checked with Cochineal insect
(a) screwworm
(b) aphids
(c) Eichhornia
(d) Opuntia
Answer: : (d)
Q. Pyrethrin is extracted from
(a) Poa indica
(b) Helianthus annuus
(c) Azadirachta indica
(d) Chrysanthemum cinerariifolium
Answer: : (d)
Q. In 1981, the first bioherbicide developed was based on
(a) Azadirachta indica
(b) Bacillus thuringiensis
(c) Phytophthora infestans
(d) Phytophthora palmivora
Answer: : (d)
Q. Transgenic crop developed to tolerate herbicides is
(a) Tomato
(b) sunflower
(c) Tobacco
(d) both (a) and (b)
Answer: : (c)
Q. This weed has been eradicated by biological control
(a) Chrysanthemum
(b) Cactus
(c) Parthenium
(d) Eichhornia
Answer: : (b)
Q. The phenomenon of using a predator to control pests is
(a) artificial control
(b) biological control
(c) confusion technique
(d) genetic engineering
Answer: : (b)
Q. This is an effective plant insecticide
(a) Nicotine
(b) Cinerin
(c) Pyrethrin
(d) all of these
Answer: : (d)
