Question

A farmer notices that the leaves of his cabbage plants are curling up because of heavy infestation of aphids. Suggest one ecofriendly method to control their spread in the cabbage plants.

Hint:

Dragonflies are used to control mosquitoes, while Ladybirds are used for Aphids.

Answer 1

Step 1: Understanding the Concept:
Ecofriendly methods focus on biological control instead of chemical pesticides.

Step 2: Detailed Explanation:
Aphids are pests that feed on plant sap.
Ladybirds (ladybugs) are natural predators of aphids.
Introducing ladybirds into the field will naturally control the aphid population without introducing toxic chemicals into the ecosystem.

Step 3: Final Answer:
The use of ladybirds as a biological control agent.