Garden speedwell is susceptible to pests such as aphids, spider mites, and whiteflies, which can cause damage by sucking sap from the plant. These pests can lead to stunted growth, yellowing of leaves, and wilting of the plant.
To prevent infestations, regular inspection of the plant for early signs of pests is crucial. Additionally, maintaining good air circulation around the plant and avoiding overcrowding can help deter these pests.
Moreover, Garden speedwell is prone to diseases like powdery mildew and root rot. Powdery mildew appears as a white powdery substance on the leaves, while root rot causes the roots to decay, leading to wilting and eventual death of the plant.
To prevent diseases, it is essential to avoid overwatering the plant and ensure proper drainage. Applying fungicides preventatively can also help in controlling powdery mildew.