Question

Which organism is used for the biocontrol of aphids?

• A. Dragonfly
• B. Ladybird
• C. Caterpillar
• D. Trichoderma
  

Answer 1

The correct option is B Ladybird

Biological control or biocontrol is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically also involves an active human management role.
Ladybirds and dargonflies are used as biocontrol agents to get rid of aphids and mosquitoes respectively.
Caterpillars are pests which are biocontrolled by Bacillus thuringenesis.
Trichoderma species are biocontrol agents used for protecting plants from disease causing organisms.