Name a common type of plant disease symptom.

Wilting or yellowing of leaves is a common type of plant disease symptom that indicates issues such as nutrient deficiencies, water stress, or the presence of pathogens affecting the plant. These symptoms can serve as important visual cues for identifying underlying problems.

When leaves wilt, it often points to insufficient water uptake due to root damage or disease. Yellowing, also known as chlorosis, frequently arises from nutrient deficiencies, particularly nitrogen, or can be a result of root damage from pathogens like fungi or nematodes. Monitoring these symptoms is crucial in agricultural pest control, as they can help in diagnosing the health of crops and taking appropriate measures before the issue escalates.

In contrast, conditions such as dry soil do not directly indicate a disease presence and may be one cause of wilting, while green shoots suggest healthy growth, and rapid growth can reflect optimal conditions rather than distress or disease. Therefore, identifying wilting or yellowing of leaves is key to early intervention in managing plant health.