Which of the following measures is most likely to cause a damage to the ecosystem in the control of pests
and weeds?
and weeds?
-
A.
Use of ladybird insects to feed on aphids -
B.
introduction of bacterium to kill larvae of butterfly -
C.
Introduction of Tilapia fish in ponds to feed on mosquito larvae -
D.
Spraying insecticides to destroy cotton- stainers in a cotton-field