Jasmine whitefly

Aleuroclava jasmini is a species of whitefly belonging to the family Aleyrodidae, order Hemiptera. This pest is recognized as a significant threat to various ornamental and tropical plants, particularly in greenhouse conditions. Due to its cryptic behavior, it often causes severe damage before the infestation is detected by growers.

The host range of this pest is quite diverse, primarily targeting species like Jasminum, Gardenia, and citrus varieties. It thrives in humid and warm environments, where it establishes colonies on the abaxial (underside) surface of the leaves. This specific habitat provides protection against many contact pesticides and environmental stress.

The life cycle progresses through eggs, nymphal stages, and the puparium stage, followed by the adult whitefly. Adults are small, winged insects capable of migrating short distances to infest neighboring plants. The nymphal stages are sessile, meaning they remain fixed in one spot while feeding, which makes them highly dependent on the plant tissue they initially colonized.

Feeding damage occurs through the extraction of phloem sap, which causes leaf yellowing, stunting, and overall plant decline. A secondary, but equally destructive effect is the excretion of honeydew. This sugary substance serves as a substrate for sooty mold fungi, which coat the leaves in a black layer, drastically reducing the plant's capacity for photosynthesis.

• Monitoring populations using yellow sticky cards.
• Applying systemic insecticides such as neonicotinoids or insect growth regulators.
• Regular pruning and destruction of heavily infested plant tissues.
• Maintaining optimal greenhouse hygiene and ventilation to prevent outbreaks.
• Introducing biological control agents, such as parasitoid wasps, to suppress populations.