Fill in the blanks (a) beetle with re...

Fill in the blanks
(a) beetle with red and black markings is useful in controlling aphids.
(b) Species specific narrow spectrum insecticidal applications are shown by .
(c ) In paddy fields __ serve as an important biofertilisers.

Verified by Experts

(a) Ladybird
(b) Baculoviruses or nucleopolyhedrovirus (NPV)
(c ) Cyanobacteria

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Fill in the blanks (a) ______ beetle with red and black markings is useful in controlling aphids. (b) Species specific narrow spectrum insecticidal applications are shown by ______ . (c ) In paddy fields ______ serve as an important biofertilisers.