Plasmopara destructor Görg & Thines, 2017

on Impatiens

gall

Leaves, pale, margins rolled inwards; the plants are stunted, flowering little or not; at the underside of the leaves a greyish white down of erect, in their upper section repeatedly branched conidiophores.

hostplants

Balsaminaceae, narrowly monophagous

Impatiens walleriana.

notes

First observed in 2003; soon afterwards it had become mondially a major problem in the horticulture of buzy lizzie.

references

Görg, Ploch, Kruse ao (2017a).

25/05/2017