(a) Write an example of a virus biocontrol agent. (b) Why are they considered desirable for the treatment of an ecologically sensitive area?
Answer
(a) Baculovirus insecticides with species specific and active spectrum are used as pest control agents. (b) They do not have any harmful effect on plants, mammals, birds, fishes even on non-target insects, rather they destroy the target insects/pests only, hence they are considered desirable for the treatment of eco-friendly area under integrated pest management.
Where is minimum and maximum biodiversity found in the world?
Answer
The maximum biodiversity in the world is found in tropics which decreases towards poles therefore, maximum diversity is found at equator and minimum at poles.