organ parasitic mode stage note taxonomic group parasite
root collar borer larva Curculionidae Notaris scirpi
stem borer larva Curculionidae Tournotaris bimaculata
leaf vagrant Aphididae Sitobion avenae
leaf vagrant summer generation Aphididae Metopolophium dirhodum
leaf vagrant summer generation Aphididae Metopolophium dirhodum
leaf leaf spot anamorph Pleosporales Pleospora typhicola
leaf pustule teleomorph Pleosporales Pleospora typhicola
leaf vagrant Aphididae Schizaphis rosazevedoi
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf borer Cosmopterigidae Limnaecia phragmitella
leaf miner>borer Glyphipterigidae Orthotelia sparganella
leaf miner>borer Noctuidae Nonagria typhae
leaf miner Agromyzidae Liriomyza trifolii
leaf miner Crambidae Calamotropha paludella
leaf miner Noctuidae Globia algae
leaf miner Noctuidae Globia sparganii
leaf vagrant summer generation Aphididae Rhopalosiphum nymphaeae
leaf vagrant summer generation Aphididae Rhopalosiphum padi
leaf vagrant summer generation Aphididae Ceruraphis eriophori
leaf vagrant summer generation Aphididae Hyalopterus pruni
leaf vagrant Aphididae Sipha glyceriae
leaf vagrant Aphididae Schizaphis scirpi

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 25.iv.2019