italian catchfly

organ parasitic mode stage note taxonomic group parasite
flower vagrant Aphididae Aphidura delmasi
flower vagrant Aphididae Aphidura ornata
flower vagrant Aphididae Aphidura picta
flower gall Cecidomyiidae Dasineura bergrothiana
fruit vagrant Coleophoridae Coleophora albella
fruit vagrant Coleophoridae Coleophora silenella
systemic borer Anguinidae Ditylenchus dipsaci
flower gall Cecidomyiidae Jaapiella floriperda
flower gall Microbotryales Microbotryum violaceoverrucosum
flower gall Microbotryales Microbotryum violaceum
flower gall Urocystidales Thecaphora italica
leaf miner Anthomyiidae Pegomya flavifrons
leaf miner Coleophoridae Coleophora corsicella
leaf miner Coleophoridae Coleophora galbulipennella
leaf pustule aecia uredinia telia Pucciniales Uromyces inaequialtus
leaf pustule uredinia telia Pucciniales Uromyces verruculosus
leaf pustule uredinia telia Pucciniales Uromyces cuenodii
stem gall Gelechiidae Caryocolum cauligenella
leaf gall Aphididae Brachycaudus lychnidis

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 26.i.2019