white stonecrop

organ parasitic mode stage note taxonomic group parasite
systemic gall Eriophyidae Aceria destructor
flower vagrant Aphididae Aphis sedi
leaf miner>borer Apionidae Aizobius sedi
leaf down Erysiphales Erysiphe sedi
leaf miner Agromyzidae Phytomyza sedi
leaf miner Agromyzidae Phytomyza sedicola
leaf miner Glyphipterigidae Glyphipterix equitella
leaf pustule aecia Pucciniales Puccinia australis
leaf vagrant Aphididae Nasonovia dasyphylli
leaf pustule aecia Pucciniales Puccinia longissima
stem gall Nanophyidae Pericartiellus flavidus


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.


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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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 11.ix.2018