fat-hen

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Capnodiales Passalora dubia
root vagrant Aphididae Pemphigus fuscicornis
leaf vagrant Aphididae Macrosiphum euphorbiae
leaf vagrant summer generation Aphididae Aphis sambuci
fruit vagrant Coleophoridae Coleophora motacillella
fruit vagrant Coleophoridae Coleophora clypeiferella
fruit vagrant Coleophoridae Coleophora vestianella
fruit vagrant Coleophoridae Coleophora saxicolella
leaf vagrant summer generation Aphididae Aphis fabae fabae
systemic borer Anguinidae Ditylenchus dipsaci
systemic miner>borer Gelechiidae Tuta absoluta
systemic witches’ broom Urocystidales Thecaphora leptideum
leaf down Erysiphales Leveillula cylindrospora
leaf down Peronosporales Peronospora variabilis
leaf leaf spot Diaporthales Ascochyta caulina
leaf gall Aphididae Hayhurstia atriplicis
leaf gall Aphididae Parapiesma quadratum
leaf gall Cecidomyiidae Stefaniella hilversidae
leaf gall Triozidae Trioza chenopodii
leaf miner Agromyzidae Amauromyza chenopodivora
leaf miner Agromyzidae Amauromyza flavifrons
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Anthomyiidae Pegomya betae
leaf miner Anthomyiidae Pegomya cunicularia
leaf miner Anthomyiidae Pegomya exilis
leaf miner Anthomyiidae Pegomya hyoscyami
leaf miner Coleophoridae Coleophora versurella
leaf miner Drosophilidae Scaptomyza graminum
leaf miner Gelechiidae Chrysoesthia drurella
leaf miner Gelechiidae Chrysoesthia sexguttella
leaf miner Gelechiidae Scrobipalpa atriplicella
leaf miner Gelechiidae Scrobipalpa nitentella
leaf pustule Chytridiales Synchytrium aureum
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Myzus persicae
stem gall Cecidomyiidae Aplonyx chenopodii
root gall Curculionidae Bothynoderes affinis
root gall Heteroderidae Heterodera schachtii
root gall Meloidogynidae Meloidogyne hapla
stem vagrant Aphididae Aphis craccivora

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 13.vii.2018