Are all plants affected by weeds?
No, not all plants are equally affected by weeds. Weeds typically compete with crops and cultivated plants for nutrients, water, and sunlight. Some plants are more susceptible to weed competition than others. The chapter mentions that Bermuda grass is found as a weed in crops like sugarcane, cotton, grassland, and fruit tree orchards, showing that certain crops are more affected by specific weeds.
Explanation
The chapter includes Table 2.6 for recording observations about weed plants. The example of Bermuda grass shows it is found in sugarcane, cotton, grassland, and fruit tree orchards. Weedicides are used to prevent or control harm to plants by weeds. Students observe which plants are affected by which weeds during their surveys.