Biology > 2002 > 38
WASSCE
Which of the following measure is most likely to cause a damage to ecosystem in the control of pest and weeds?
A.
use of the ladybird insects to feed on aphids.
B.
introduction of bacterium to kill larve of butterfly
C.
introduction the tilapia fish in ponds feed on mosquito larvae
D.
spraying insecticides to destroy cotton-stainers in a cotton field
Answer: D
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