What type of symptoms might suggest a pest problem in plants?

Wilting, leaf spots, and galls are symptoms that clearly indicate a potential pest problem in plants. Wilting can occur when pests, such as aphids or root-feeding nematodes, interfere with the plant's ability to take up water. Leaf spots may be a result of damage from sucking insects or fungal pathogens that pests can introduce. Galls, which are abnormal growths that can form on shoots, stems, or roots, are often caused by insect activity or specific infestations. These symptoms typically signal distress in the plant that is often linked to pest-related issues, highlighting their significance in identifying pest problems.

In contrast, bright green leaves and vigorous growth generally indicate a healthy plant, free from pest stress. Increased height and thickness of stems can also suggest good growth conditions rather than pest issues. Changes in soil color may reflect environmental factors or soil conditions but do not specifically indicate pest infestations. Overall, the presence of wilting, leaf spots, and galls is more directly associated with pest problems, making them critical indicators for diagnosing plant health issues.