Geranium plume moth

The Geranium plume moth (Amblyptilia pica) is a member of the order Lepidoptera and the family Pterophoridae. It is a well-known pest that specifically targets plants within the Geraniaceae family, most notably the Pelargonium species.

This pest is primarily found in greenhouses, nurseries, and ornamental garden beds. It poses a significant threat to the health and aesthetic value of geraniums, as the larvae feed on the most vital parts of the plant, including the flower buds and young foliage.

The biology of the Geranium plume moth involves a complete metamorphosis. Adults are nocturnal moths that deposit eggs on the host plant. Upon hatching, the larvae, which are characteristic of plume moths, begin to mine and consume plant tissues, often causing significant damage before being noticed.

The damage caused by Amblyptilia pica is distinct: affected buds fail to bloom, and stem terminals often become distorted or withered. The presence of larval frass near the feeding sites is a primary diagnostic feature indicating an infestation that requires immediate attention.

Effective pest management relies on an integrated approach.

• Manual removal of infested buds and leaves to reduce the population.
• Monitoring using light traps to track adult flight periods.
• Application of selective insecticides when larvae are in their early developmental stages.
• Implementing strict sanitation protocols in commercial greenhouses to prevent the spread of the moth.