organ parasitic mode stage note taxonomic group parasite
leaf hidden Tortricidae Archips rosana
leaf hidden Tortricidae Archips xylosteana
systemic vagrant Tenuipalpidae Brevipalpus phoenicis
leaf vagrant Tenuipalpidae Brevipalpus lewisi
leaf vagrant Tenuipalpidae Brevipalpus californicus
leaf vagrant Tenuipalpidae Brevipalpus obovatus
leaf scale Aleyrodidae Paraleyrodes citricolus
leaf scale Aleyrodidae Paraleyrodes bondari
leaf scale Aleyrodidae Paraleyrodes minei
leaf scale Aleyrodidae Parabemisia myricae
leaf scale Aleyrodidae Acaudaleyrodes rachipora
stem scale Coccidae Saissetia oleae
leaf scale Aleyrodidae Bemisia afer
leaf scale Aleyrodidae Aleurothrixus floccosus
leaf scale Aleyrodidae Dialeurodes citri
leaf scale Aleyrodidae Aleuroclava aucubae
leaf scale Aleyrodidae Aleurocanthus spiniferus
leaf scale Diaspididae Lepidosaphes beckii
leaf scale Coccidae Coccus hesperidum
systemic scale Unknown code! Diaspididae Lepidosaphes gloverii
stem scale Diaspididae Lepidosaphes ulmi
stem scale Diaspididae Lepidosaphes conchiformis
systemic scale Diaspididae Parlatoria oleae
leaf scale Diaspididae Parlatoria ziziphi
systemic scale Diaspididae Parlatoria pergandii
fruit borer Tephritidae Ceratitis capitata
leaf vagrant Coccidae Pulvinaria floccifera
leaf vagrant Aphididae Macrosiphum euphorbiae
leaf vagrant Tenuipalpidae Cenopalpus pulcher
leaf vagrant Aphididae Brachyunguis harmalae
leaf vagrant summer generation Aphididae Aphis frangulae
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant Aphididae Aphis citricidus
stem vagrant Aphididae Aphis craccivora
root vagrant summer generation Aphididae Rectinasus buxtoni
systemic gall Eriophyidae Aceria sheldoni
flower gall Cecidomyiidae Contarinia citri
leaf gall Eriophyidae Phyllocoptruta oleivora
leaf miner Gracillariidae Phyllocnistis citrella
leaf vagrant Eriophyidae Aculops pelekassi
leaf vagrant Aphididae Aphis spiraecola
leaf vagrant summer generation Aphididae Aphis fabae fabae
stem vagrant Aphididae Aphis aurantii
leaf vagrant Aphididae Aphis gossypii


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 2.xii.2019