Pear sucker

Cacopsylla pyri

List of symptoms/signs

Fruit - honeydew or sooty mould

Inflorescence - honeydew or sooty mould

Leaves - abnormal forms

Leaves - abnormal leaf fall

Leaves - honeydew or sooty mould

Leaves - necrotic areas

Symptoms

Sucking of larvae and adults, when populations are high, can produce pustules on branchlets and spots on leaves. This can sometimes lead to deformation of the leaves. Considerable damage is caused by the honeydew secreted by the larvae which stains leaves and fruit and which serves as the growth medium of black sooty mould.