Plant Parasites of Europe

leafminers, galls and fungi

Phleum phleoides

purple-stem cat’s-tail

synonym: Chilochla, Phleum, boehmeri; Phalaris phleoides

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Ascomycota incertae sedis Pseudoseptoria donacis
leaf leaf spot Ploettnerulaceae Rhynchosporium secalis
leaf vagrant Berytidae Berytinus clavipes
stem borer Chloropidae Meromyza zimzerla
leaf vagrant Cicadellidae Arocephalus languidus
leaf vagrant Cicadellidae Psammotettix alienus
leaf scale Eriococcidae Acanthococcus insignis
flower gall Anguinidae Anguina agrostis
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf leaf spot Capnodiales Heterosporium phlei
leaf film Ustilaginales Tranzscheliella hypodytes
leaf gall Eriophyidae Aceria tenuis
leaf miner Elachistidae Elachista nolckeni
leaf miner Elachistidae Elachista rudectella
leaf miner Elachistidae Elachista subocellea
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf stripe Urocystidales Urocystis phlei-alpini
leaf stripe Ustilaginales Ustilago striiformis
stem gall Eurytomidae Tetramesa phleicola
leaf vagrant Aphididae Atheroides brevicornis
leaf vagrant Aphididae Sitobion avenae


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.


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