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Effects of crop pests on yield.
- Heavy attack by pests may result in total crop failure.
- Infected seeds, crops, and vegetables have low market value.
- Pests reduce the quality of crops
- Pests eat up leaves of crops, thereby reducing the photosynthetic activity of the plant.
- They cause injury which may predispose crop to diseases attack.
- Infected seeds usually have low viability (germination) capacity.
- Some insects like aphids transmit diseases to crops.
- Pests reduce the quantity of crops.
Economic importance of pests
- Reduction of quality of products
- Control of pests leads to an increase in production.
- Reduction in the profit of farmers.
- Pests e.g monkeys and birds cause nuisance to farmers by their noisy habits.
- Pests can also cause diseases to crop farmers.
- All the points under the effects of crop pests on yield above.
EVALUATION
State five effects of pests on crop yield
