organ parasitic mode stage note taxonomic group parasite
leaf vagrant summer generation Aphididae Metopolophium dirhodum
leaf scale rarely Coccidae Eriopeltis lichtensteini
fruit vagrant Coleophoridae Coleophora antennariella
fruit vagrant rarely Coleophoridae Coleophora glaucicolella
fruit vagrant Coleophoridae Coleophora otidipennella
fruit vagrant rarely Coleophoridae Coleophora alticolella
fruit vagrant Coleophoridae Coleophora sylvaticella
fruit gall Microbotryales Bauerago vuyckii
fruit gall Ustilaginales Stegocintractia hyperborea
fruit gall Ustilaginales Stegocintractia luzulae
flower gall Ustilaginales Stegocintractia spadicea
leaf miner Agromyzidae Cerodontha bimaculata
leaf miner Agromyzidae Cerodontha carpatica
leaf miner Agromyzidae Cerodontha handlirschi
leaf miner Agromyzidae Cerodontha luzulae
leaf miner Agromyzidae Cerodontha silvatica
leaf miner Agromyzidae Chromatomyia beigerae
leaf miner Agromyzidae Chromatomyia luzulae
leaf miner Elachistidae Elachista albifrontella
leaf miner rarely Elachistidae Elachista apicipunctella
leaf miner Elachistidae Elachista geminatella
leaf miner Elachistidae Elachista gleichenella
leaf miner Elachistidae Elachista nobilella
leaf miner Elachistidae Elachista quadripunctella
leaf miner Elachistidae Elachista regificella
leaf miner Elachistidae Elachista tengstromi
leaf miner Elachistidae Elachista trapeziella
leaf pustule uredinia telia Pucciniales Puccinia luzulae
leaf pustule uredinia telia Pucciniales Puccinia obscura
leaf stripe Urocystidales Urocystis luzulae
leaf vagrant summer generation Aphididae Ceruraphis eriophori
stem borer Glyphipterigidae Glyphipterix fuscoviridella
stem miner Buprestidae Aphanisticus pusillus
leaf vagrant doubtful Aphididae Atheroides brevicornis
leaf vagrant Aphididae Sipha maydis
leaf vagrant Aphididae Melanaphis luzulella
leaf vagrant Aphididae Sitobion avenae
leaf vagrant summer generation Aphididae Sitobion fragariae

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.

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.

 

mod 4.ii.2019