MCQs on Biopesticides
1. Which of the following is used as a biocontrol agent against caterpillars of butterflies?
(a) Trichoderma
(b) Streptococcus
(c) Bacillus Thuringiensis
(d) Saccharomyces cerevisiae
Answer: : (c)
2. Which of the following is the use of microbes as a biological control agent for pests/diseases?
(a) Bt-cotton to increase the yield of cotton
(b) Ladybird beetle for controlling aphids in mustard
(c) Trichoderma sp against plant pathogens
(d) Nucleopolyhedrovirus against white rust in Brassica
Answer: : (c)
3. A biocontrol agent against plant diseases
(a) Trichoderma
(b) Glomus
(c) Bacillus thuringiensis
(d) baculovirus
Answer: : (a)
4. Which of the following is not a biopesticide?
(a) Nucleopolyhedrovirus
(b) Xanthomonas campestris
(c) Bacillus thuringiensis
(d) Trichoderma harzianum
Answer: : (b)
5. Trichoderma harzianum is used for
(a) wasteland reclamation
(b) bioremediation of contaminated soil
(c) biocontrol agent against plant pathogens
(d) gene transfer
Answer: : (c)
6. Which of the following is a biocontrol agent for nematodal diseases?
(a) Pseudomonas cepacia
(b) Pisolithus tinctorius
(c) Paecilomyces lilacinus
(d) Gliocladium virens
Answer: : (c)
7. This is a third generation pesticide.
(a) Pheromones
(b) Pathogens
(c) Carbamates and organophosphates
(d) Insect repellants
Answer: : (a)
8. Cochineal insects are used for
(a) Parthenium control
(b) weeds control
(c) Eicchornia prevention
(d) Cactus prevention
Answer: : (d)
9. The process of using a natural predator to control a pathogen is called
(a) genetic engineering
(b) biological control
(c) confusion technique
(d) artificial control
Answer: : (b)
10. Rotenone is used as a
(a) bioherbicide
(b) insect hormone
(c) natural insecticide
(d) natural herbicide
Answer: : (c)
