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Match the following
Colum – I Colum – II
A Aphids I Cotton
B Dragon flies II Species specific
C Bacillus thuringiensis III Root ecosystems
D Trichoderma IV Shoot ecosystems
E Nucleopolyhedro virus V Mosquitoes
VI Lady bird
Choose the correct answer from the options given below :

A B C D E
1 VI V I III II
2 V VI I II III
3 VI V II IV I
4 I II IV III VI

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answer is A.

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Detailed Solution

Aphids are small, sap-sucking insects that feed on the sap of plants. They are common agricultural pests and can cause damage to crops. Ladybirds, or ladybugs, are beneficial insects that feed on aphids and other pests, making them important natural predators in pest control.
Dragonflies are predatory insects known for their agility and ability to catch and consume flying insects, including mosquitoes.
Bacillus thuringiensis (Bt) is a bacterium that produces proteins toxic to certain insect pests. Bt toxins are used in genetically modified crops (like Bt cotton) and biopesticides to provide insect resistance.
Trichoderma species are common, free-living fungi found in root ecosystems. They act as effective biocontrol agents against plant pathogens, inhibiting their growth and promoting plant health.
Nucleopolyhedroviruses (NPVs) are ideal for species-specific insecticidal use due to their narrow host range. They selectively target specific pests, making them environmentally friendly and safe for non-target organisms.

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