Plant Parasites of Europe

leafminers, galls and fungi

Knautia dipsacifolia

synonym: Scabiosa dipsacifolia

organ parasitic mode stage note taxonomic group parasite
leaf hidden Tortricidae Philedonides lunana
root borer Tortricidae Endothenia oblongana
leaf leaf spot Mycosphaerellaceae Septoria scabiosicola
stem borer Cerambycidae Agapanthia intermedia
leaf vagrant Noctuidae Autographa gamma
flower vagrant Geometridae Eupithecia satyrata
flower vagrant Geometridae Eupithecia subfuscata
flower borer Adelidae Nemophora cupriacella
leaf vagrant Cicadellidae Eupteryx austrIaca
leaf vagrant Aphididae Macrosiphum knautiae
flower down Peronosporales Peronospora violacea
flower gall Microbotryales Microbotryum flosculorum
flower gall Microbotryales Microbotryum scabiosae
leaf bud gall Cecidomyiidae Jaapiella knautiae
leaf down Erysiphales Erysiphe knautiae
leaf down Peronosporales Peronospora knautiae
leaf leaf spot Capnodiales Ramularia tricherae
leaf miner Agromyzidae Aulagromyza similis
leaf miner Agromyzidae Chromatomyia ramosa
leaf miner Agromyzidae Chromatomyia scabiosarum
leaf miner Buprestidae Trachys troglodytes
flower vagrant spring generation Aphididae Aphis confusa
leaf vagrant summer generation Aphididae Aphis confusa


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 17.ii.2023