Citrus bud mite

The citrus bud mite (Aceria sheldoni) is a microscopic pest belonging to the family Eriophyidae within the order Trombidiformes. Because of their minute size and tendency to live hidden within buds, these pests often cause significant damage before their presence is even confirmed.

This mite primarily infests various citrus species, with lemons being particularly susceptible. The pests thrive by feeding on the sap of developing buds, flowers, and young leaves, causing structural changes in the host plant's tissues during the growth process.

The life cycle of the citrus bud mite is accelerated by warm and humid conditions, allowing for multiple overlapping generations per year. Adults and nymphs typically overwinter in protected areas such as bud scales and crevices of young branches, ensuring survival through cooler periods.

The economic impact of this pest is driven by the visible damage to both foliage and fruit. The most characteristic symptoms include:

• Bud necrosis and poor development.
• Witch’s broom appearance of new terminal growth.
• Severe malformation of fruit, often causing them to become misshapen or develop into distinct shapes.

Managing Aceria sheldoni requires an integrated approach. Cultural practices such as regular pruning of heavily infested branches help reduce the mite population. When infestations exceed economic thresholds, growers should utilize specific acaricides applied during periods of peak mite movement to ensure optimal coverage of the affected areas.