Why does your Capsicum annuum Salsa Multicolor GT36 have sudden leaf drop? Diagnose the cause and fix it with our step-by-step guide.
Pepper plants are highly sensitive to inconsistent moisture; sudden leaf drop is a common physiological response to either bone-dry soil or waterlogged roots causing hypoxia. Rapid fluctuations in soil moisture levels trigger the plant to shed leaves to reduce transpiration.
Capsicum annuum varieties thrive in stable, warm environments; sudden drops in nighttime temperature (below 10°C/50°F) or extreme heat waves can cause the plant to drop leaves to protect its core. This is particularly common when moving plants from a greenhouse to outdoors.
This soil-borne oomycete attacks the stem and roots, often leading to rapid wilting and leaf abscission. While more common in high humidity, it can cause a sudden collapse of the foliage as the vascular system fails.
Severe nitrogen deficiency prevents the plant from maintaining its foliage, often resulting in older leaves yellowing and dropping prematurely. This is common in pepper crops if the soil organic matter has been depleted.
Your plant might also be experiencing one of these issues: