Psyllids as pests

Incidence 
The leucaena psyllid sucks the sap from the leaves and branches of leucaena trees, one of the most commonly used species in agroforestry in Africa. It arrived in eastern Africa in 1992, having expanded its range northward up the east African coast.
Strategy(ies) 
Value(s) 
Type 
(E) Emanations of other problems