Lavender Plant Problems

Types

• Lavender plants are prone to a fungal infection called phytophthora root rot. They also tend to become damaged by caterpillars and sometimes develop fungal or bacterial leaf spot infections during rainy seasons.

Effects

• Phytophthora root rot infects plants when the spores are splashed from the soil on to the young, tender leaves of plants. The leaves change colors, become brittle and roll inward. The disease gradually works its way in and infects the rest of the plant, causing dieback and root rot, according to the University of Connecticut Integrated Pest Management website. Caterpillars eat the edges of leaves and cause unsightly blemishes, while leaf spot creates small dark blemishes on the leaves.

Prevention/Solution

• Prevent root rot by not over-watering plants or allowing them to stand in water for long periods of time. Pick off caterpillars and remove leaves that are damaged by insects or leaf spot.