Write the modes by which insects affect the crop yield.
ScienceClass 9CBSEAnswered 27 Mar 2026
Answer
Below are the modes by which insects decrease crop yield.
- Cutting:
Insects cut plant parts such as leaves, fruits, flowers etc. This damages the plant, damaged leaves result in decreased rate of photosynthesis , decreased flower decreases the production of seeds.
- Borers:
Some pests bore holes in specific plant parts and start living inside. These pest utilize plant nutrients and food which result in the decrease in the yield.
- Suckers
Few pests suck cell sap by using their proboscis. This result in adverse effect on plant which reduces the yield.
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