Mammea pulvinaria

Pulvinaria mammeae is a member of the Coccidae family, commonly referred to as soft scales. This pest is a sap-sucking insect that primarily inhabits tropical and subtropical environments, targeting a variety of woody plants and shrubs across its geographical range.

While primarily associated with the genus Mammea, this pest can also infest a wide range of exotic ornamentals and fruit-bearing trees. Its ability to adapt to greenhouse environments makes it a significant concern for botanical collections and commercial nurseries that handle imported plant stock.

The life cycle of this insect involves the formation of a conspicuous white, cottony ovisac where the female deposits eggs. The primary dispersive stage consists of crawlers—immature insects that move across the plant surface to find suitable feeding sites before settling down and developing their protective waxy covering.

The primary damage caused by this pest is the extraction of plant sap, which leads to stunted growth, leaf chlorosis, and general tree decline. Furthermore, the insect excretes honeydew, which facilitates the growth of sooty mold, blocking light from leaves and hindering photosynthesis, thereby reducing the plant's overall vigor.

Effective management strategies require a combination of cultural and chemical interventions:

• Regular inspection of plant stems and undersides of leaves for signs of infestation.
• Pruning and destroying heavily infested branches to reduce the pest population.
• Application of systemic insecticides that target the insect through the plant's vascular system.
• Using horticultural oils to smother the insects and disrupt their respiratory cycle.
• Introducing natural biological control agents, such as parasitoid wasps or predatory lady beetles, to keep populations in check.