corn chamomille

organ parasitic mode stage note taxonomic group parasite
fruit vagrant Tortricidae Aethes smeathmanniana
stem borer larva Curculionidae Microplontus melanostigma
flower borer larva Curculionidae Pseudostyphlus pillumus
flower borer larva Apionidae Diplapion detritum
flower borer larva Apionidae Omphalapion dispar
leaf vagrant summer generation Aphididae Brachycaudus cardui
flower vagrant rarely Aphididae Macrosiphoniella millefolii
flower gall doubtful Tephritidae Eurasimona stigma
leaf vagrant summer generation Aphididae Myzus persicae
systemic vagrant Aphididae Protaphis terricola
leaf vagrant summer generation Aphididae Aphis fabae solanella
leaf vagrant summer generation Aphididae Aphis fabae
fruit gall Cecidomyiidae Ozirhincus anthemidis
flower borer Tephritidae Trupanea stellata
flower gall Apionidae Omphalapion laevigatum
flower gall Cecidomyiidae Ozirhincus longicollis
flower gall Cecidomyiidae Rhopalomyia syngenesiae
flower gall Tephritidae Tephritis nigricauda
leaf down Peronosporales Paraperonospora leptosperma
leaf down Peronosporales Peronospora radii
leaf leaf spot Capnodiales Didymaria matricariae
leaf miner Agromyzidae Liriomyza ptarmicae
leaf pustule telia Pucciniales Puccinia anthemidis
root gall Apionidae Diplapion confluens
leaf vagrant summer generation Aphididae Brachycaudus helichrysi

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.

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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 18.x.2019