To get rid of mosquitoes, which of the following is used?

(1) Dragonflies

(2) Aphids

(3) Ladybird

(4) Both B and C

Subtopic:  Microbes in Biocontrol Agent |
 81%
From NCERT
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The Bacterium Bacillus thuringiensis is used to

(1) Control aphids

(2) Control aphid larva

(3) To control butterfly

(4) To control butterfly caterpillars

Subtopic:  Microbes in Biocontrol Agent |
 87%
From NCERT
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Bt as a Biocontrol measure holds true for which of the following options?

(1) Available in sachets as dried spores

(2) Sprayed on vulnerable plants such as Brassicas and Dahlia

(3) Kills butterfly caterpillars and other insects

(4) All of these

Subtopic:  Microbes in Biocontrol Agent |
From NCERT
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Which of the following is not true about Trichoderma?

(1) Common in the root ecosystem

(2) Free living fungi

(3) Effective Biocontrol Agents of several plant pathogens

(4) Bt-cotton is prepared by it

Subtopic:  Microbes in Biocontrol Agent |
 87%
From NCERT
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Which of the following option is not true for Baculoviruses?

(1) Pathogens that attack insects and the Arthropods

(2) Biological control agents

(3) Genus- Nucleopolyhedrovirus

(4) Species-specific and broad spectrum insecticidal applications

Subtopic:  Microbes in Biocontrol Agent |
 89%
From NCERT
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Baculoviruses have no negative effect over

(1) Plants, fish

(2) Mammals

(3) Birds, non-target insects

(4) All of these

Subtopic:  Microbes in Biocontrol Agent |
 91%
From NCERT
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IPM stands for

(1) Integrated Pest Management

(2) Integrated Part Messenger

(3) International Pollution Management

(4) Inter- Pesticide Management Committee

Subtopic:  Microbes in Biocontrol Agent |
 95%
From NCERT
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Biofertiliser are the organisms

(1) That enrich the nutrient quantity of soil

(2) That reduce the nutrient quantity of soil

(3) That enrich the nutrient quality of soil

(4) That enrich the nutrient specificity of soil

Subtopic:  Microbes as Biofertilizer |
 72%
From NCERT
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Which of the following is free living nitrogen fixer?

(1) Baculoviruses

(2) Azotobacter

(3) Rhizobium

(4) Trichoderma

Subtopic:  Microbes as Biofertilizer |
 78%
From NCERT
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Mycorrhizae is

(1) Symbiotic association of lichen with algae

(2) Symbiotic association of fungi with higher plants

(3) Symbiotic association of bacteria with plants

(4) Symbiotic association of algae with fungi

Subtopic:  Microbes as Biofertilizer |
 91%
From NCERT
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