Sap-sucking hemiptera insect, native to East Asia.
Adults measure from 1.8 to 2.3 mm, the female being larger than the male; they are a dull green colour.
The nymphs go through five instars; in the last one, they are greeny-yellow on the head and brown at the end of the abdomen. They also present wing folds. In the other instars, they are creamy-yellow with reddish eyes.
The eggs are ovoid in shape, about 0.3 mm long, orangy-yellow in colour. They are placed on the nerves of leaves or on the rims of pods.
Hibernation takes place in the adult stage; the first infestations occur at the beginning of the growth cycle of the tree, on the most tender shoots. The different generations overlap each other, and all the instars of the insect can be found simultaneously on the same host.
Preventive treatment with plant endotherapy (ENDOterapia Vegetal®) to avoid the occurrence of problems. Preventive treatment is generally recommended in late spring, when the first infestations are detected.