Garden stonecrop is susceptible to common pests such as aphids, spider mites, and mealybugs. These pests can cause damage by sucking sap from the plant, leading to wilting and yellowing of leaves.
Preventative measures include regularly inspecting the plant for signs of infestation, using insecticidal soap or neem oil, and maintaining good air circulation around the plant. Additionally, planting companion plants that repel these pests can help deter infestations.
As for diseases, Garden stonecrop is prone to root rot caused by overwatering or poorly-draining soil. This can lead to the plant's roots becoming waterlogged, resulting in wilting, yellowing leaves, and ultimately plant death.
To prevent root rot, ensure the plant is in well-draining soil, water sparingly, and avoid letting water accumulate around the roots.