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Question
Which of the following has the larvicidal properties?
Which of the following has the larvicidal properties?
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Solution
The correct option is A Azolla
A. AzollaReason:
Azolla are a group of aquatic ferns belonging to the family salviniaceae. It
contains an endosymbiont the nitrogen-fixing cyanobacterium anabaena azolla. They
are potent wormicide and larvicide and it is commonly used by farmers in their
crop fields to protect their crops from such damaging agents. Azolla plants
grow as a thick mat on the surface of the water, making it more difficult for
the larvae to reach the surface to breathe.
A. Azolla
Reason:
Azolla are a group of aquatic ferns belonging to the family salviniaceae. It
contains an endosymbiont the nitrogen-fixing cyanobacterium anabaena azolla. They
are potent wormicide and larvicide and it is commonly used by farmers in their
crop fields to protect their crops from such damaging agents. Azolla plants
grow as a thick mat on the surface of the water, making it more difficult for
the larvae to reach the surface to breathe.
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