What are common signs of pest damage in agricultural crops?

The presence of wilting, discoloration, and holes in leaves are well-known indicators of pest damage in agricultural crops. Each of these signs can point to different types of pest-related issues.

Wilting often indicates that a pest may be feeding on the plant sap, affecting the plant's ability to transport water and nutrients. Discoloration can signify that the leaves are being damaged by pests such as aphids or spider mites, which may cause yellowing or other discoloration as they feed on plant tissues. Holes in leaves typically result from chewing insects like caterpillars or beetles, which physically remove parts of the leaves. Together, these signs provide tangible evidence that pest activity is affecting crop health and productivity, making option B the correct choice for identifying pest damage.

The other options do not adequately reflect typical signs of pest damage. Excessive growth and flowering might indicate a nutrient issue or other beneficial environmental factors, while saturated soil and pest presence could suggest either a root disease or other environmental stress rather than direct pest damage. Meanwhile, bright green leaves and increased yield usually suggest healthy plants rather than problems, further reinforcing why option B is the most accurate representation of pest damage signs.