Plant Parasites of Europe

leafminers, galls and fungi

genus Impatiens

organ parasitic mode stage note taxonomic group parasite
systemic film Pythiaceae Globisporangium debaryanum
root film Pythiaceae Pythium aphanidermatum
systemic down Sclerotiniaceae Botrytis cinerea
root film Ceratobasidiaceae Rhizoctonia solani
leaf leaf spot Didymellaceae Ascochyta weissiana
leaf leaf spot Mycosphaerellaceae Septoria balsaminae
leaf leaf spot Mycosphaerellaceae Septoria noli-tangere
leaf leaf spot Phyllostictaceae Phyllosticta impatientis
leaf leaf spot Mycosphaerellaceae Passalora campi-silii
leaf leaf spot Ascomycota incertae sedis Apiocarpella impatientis
leaf leaf spot Didymellaceae Ascochyta impatientis
leaf leaf spot Plectosphaerellaceae Spermosporina ludwigiana
leaf leaf spot Pleosporales Mycocentrospora acerina
leaf vagrant Miridae Apolygus lucorum
leaf vagrant Noctuidae Anaplectoides prasina
stem scale Coccidae Ceroplastes rusci
leaf hidden Crambidae Hydriris ornatalis
stem scale Margarodidae Icerya purchasi
leaf vagrant Noctuidae Euplexia lucipara
leaf vagrant Aphididae Myzus ornatus
root collar hidden Crambidae Duponchelia fovealis
leaf vagrant Geometridae Alcis repandata
flower vagrant Geometridae Eupithecia subfuscata
leaf vagrant Geometridae Ecliptopera silaceata
leaf vagrant Geometridae Ecliptopera capitata
leaf vagrant Geometridae Eustroma reticulata
leaf vagrant Geometridae Xanthorhoe biriviata
leaf vagrant Sphingidae Agrius convolvuli
leaf vagrant Sphingidae Deilephila elpenor
leaf vagrant Sphingidae Hippotion celerio
stem borer Anthomyzidae Paranthomyza nitida
leaf vagrant Tenthredinidae Aglaostigma nebulosum
leaf vagrant doubtful Tenthredinidae Tenthredo trabeata
leaf vagrant Tenthredinidae Siobla sturmii
stem gall Pristerognatha fuligana
leaf miner younger larva Tortricidae Cnephasia asseclana
leaf hidden older larva Tortricidae Cnephasia asseclana
leaf hidden Tortricidae Cnephasia incertana
leaf gall Aphrophoridae Philaenus spumarius
leaf scale Aleyrodidae Aleyrodes lonicerae
leaf scale Aleyrodidae Trialeurodes vaporariorum
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf miner Agromyzidae Chromatomyia horticola
leaf vagrant Aphididae Aphis gossypii
leaf down Erysiphales Fibroidium balsaminae
leaf down Erysiphales Leveillula taurica
leaf down Erysiphales Oidiopsis balsaminae
leaf down Erysiphales Podosphaera balsaminae
leaf down Erysiphales Podosphaera xanthii
leaf down Peronosporales Plasmopara destructor
leaf down doubtful Peronosporales Plasmopara obducens
leaf down Peronosporales Plasmopara velutina
leaf gall summer generation Aphididae Semiaphis noli-tangere
leaf miner Agromyzidae Phytoliriomyza melampyga
leaf pustule aecia uredinia telia Pucciniales Puccinia komarovii
leaf pustule uredinia telia Pucciniales Puccinia argentata
leaf pustule uredinia telia Pucciniales Cronartium flaccidum
leaf vagrant summer generation Aphididae Aphis fabae
root collar gall Tortricidae Pristerognatha penthinana
root gall Meloidogynidae Meloidogyne arenaria
root gall Meloidogynidae Meloidogyne hapla
root gall Meloidogynidae Meloidogyne incognita
root gall Meloidogynidae Meloidogyne javanica
leaf vagrant summer generation Aphididae Myzus persicae
leaf vagrant Aphididae Impatientinum balsamines
leaf vagrant Aphididae Impatientinum asiaticum
leaf vagrant summer generation Aphididae Brachycaudus helichrysi

Organ

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.

PARASITIC MODE

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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IMPORTANT

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