Plants that are watered incorrectly are most susceptible to which condition?

• A. Stress injury
• B. Pest damage
• C. Nutrient deficiency
• D. Root rot

Answer: (A)

Water balance directly affects plant cells and tissue health. When watering is wrong, you create a form of stress for the plant—either by giving too much water, which fills the air spaces in the soil and deprives roots of oxygen, or by giving too little water, which causes dehydration. In either case, the plant’s tissues respond with stress symptoms such as wilting, leaf scorch, slowed growth, or tissue damage. Because improper watering causes a general stress response that affects the whole plant, it’s described as stress injury. Root rot can happen from persistent overwatering, but it’s a specific consequence of that stress, not the immediate outcome of all watering mistakes. Pest damage and nutrient deficiency aren’t directly caused by watering errors in the same immediate way.