General information about Cacopsylla pyri (PSYLPI). 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. ABSTRACT. The psyllid Cacopsylla pyri L. (Hemiptera: Psyllidae), is one of the principal pests of pear (Pyrus spp.) orchards and, along with its natural enemies, .
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pear sucker (Cacopsylla pyri)
Go to distribution map Pyrus communis European pear. 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.
Cacopsylla pyri – Wikispecies
Biological Control Insect predators, such as Anthocoris spp. For further information, see Lyoussoufi et al. Chemical Control Due to the variable regulations around de- registration of pesticides, we are for the moment not including any specific chemical control recommendations.
For further information, we recommend you visit the following resources: EU pesticides database www. Oyri control of pear psyllids is integrated in a wider strategy of pest monitoring.
If infestation is heavy, considerable damage can be caused by the larvae of C. The larvae diminish plant growth by withdrawal of plant-sap. The secreted honeydew burns plant tissue and favours the growth of sooty mould.
The secretions cause spots on the fruits which lower their value. High population densities can cause premature leaf drop, which results in reduced flowering the following year. These diseases cause severe growth abnormalities of pear trees.