• The green scale is a serious sucking pest of coffee, particularly Arabica.

Symptoms of attack and nature of damage

• Nymphs and adults sucks sap from undersurface of the leaves, green shoots, spikes and berries. 
• Upward curling and tender twigs drop
• Honeydew excrete – development of sooty mould fungus
• Heavy loss of the sap causes debility or even death of the plant.

Identification of the pest

• Ants movement
• Nymphs – pale yellow colour
• Adult - flat, oval, light green, blackish spots on dorsum