Potato/tomato psyllid
and proving difficult to control. In light of this, the export of fruit from susceptible crops to some parts of Europe, and the import into Mexico, is difficult [...] problems caused. Psyllids spread purple-top disease in potatoes and permanent yellowing disease in tomatoes, both of which are very harmful to the affected [...] Overview It is a pest of huge economic importance, which initially affected potatoes and in recent years has become a problem for other Solanaceae crops