Plant Parasites of Europe

leafminers, galls and fungi

Impatiens noli-tangere

touch-me-not balsam

organparasitic modestagenotetaxonomic groupparasite
leafleaf spotPhyllostictaceaePhyllosticta impatientis
leafleaf spotMycosphaerellaceaePassalora campi-silii
leafleaf spotAscomycota incertae sedisApiocarpella impatientis
leafleaf spotPlectosphaerellaceaeSpermosporina ludwigiana
leafvagrantNoctuidaeAnaplectoides prasina
leafvagrantNoctuidaeEuplexia lucipara
leafvagrantSphingidaeDeilephila elpenor
leafvagrantGeometridaeAlcis repandata
flowervagrantGeometridaeEupithecia subfuscata
leafvagrantGeometridaeEcliptopera silaceata
leafvagrantGeometridaeEcliptopera capitata
leafvagrantGeometridaeEustroma reticulata
leafvagrantGeometridaeXanthorhoe biriviata
leafvagrantTenthredinidaeAglaostigma nebulosum
leafvagrantTenthredinidaeSiobla sturmii
stemgallTortricidaePristerognatha fuligana
leafscaleAleyrodidaeAleyrodes lonicerae
leafscaleAleyrodidaeTrialeurodes vaporariorum
leafvagrantsummer generationAphididaeAphis fabae fabae
leafdownErysiphalesPodosphaera balsaminae
leafdownPeronosporalesPlasmopara obducens
leafgallsummer generationAphididaeSemiaphis noli-tangere
leafminerAgromyzidaePhytoliriomyza melampyga
leafpustuleuredinia teliaPuccinialesPuccinia argentata
root collargallTortricidaePristerognatha penthinana
leafvagrantsummer generationAphididaeAphis fabae
leafvagrantAphididaeImpatientinum balsamines


the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.


borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot: discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.


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The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.


Last modified 21.x.2022