root beet

synonym: Beta cicla, “cycla”, rapa, vulgaris, vulgaris subsp. cicla, vulgaris subsp. esculenta

organ parasitic mode stage note taxonomic group parasite
unknown unknown Scythrididae Eretmocera medinella
leaf vagrant Triozidae Bactericera nigricornis
flower hidden Thripidae Frankliniella intonsa
unknown unknown Hemicycliophoridae Hemicycliophora conida
root gall Curculionidae Bothynoderes affinis
stem borer larva Curculionidae Lixus subtilis
stem borer larva Curculionidae Lixus scabricollis
leaf scale Aleyrodidae Aleurodicus dispersus
root vagrant Aphididae Pemphigus fuscicornis
leaf vagrant Aphididae Aphis gossypii
leaf vagrant summer generation Aphididae Aphis fabae solanella
root vagrant Aphididae Rhopalosiphoninus latysiphon
leaf down Erysiphales Erysiphe betae
leaf down Peronosporales Peronospora schachtii
leaf leaf spot Capnodiales Ramularia beticola
leaf gall rarely Aphididae Hayhurstia atriplicis
leaf gall Aphididae Parapiesma quadratum
leaf gall Blastocladiales Physoderma leproides
leaf gall Triozidae Trioza chenopodii
leaf miner Agromyzidae Amauromyza flavifrons
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Agromyzidae Liriomyza huidobrensis
leaf miner Anthomyiidae Pegomya betae
leaf miner Anthomyiidae Pegomya cunicularia
leaf miner Anthomyiidae Pegomya hyoscyami
leaf miner Coleophoridae Coleophora crepidinella
leaf miner Gelechiidae Scrobipalpa atriplicella
leaf pustule aecia Pucciniales Puccinia isiacae
leaf pustule aecia uredinia telia Pucciniales Uromyces beticola
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Aphis fabae fabae
stem gall Rhizobiales Agrobacterium tumefaciens
root collar gall Actinomycetales Rhodococcus fascians
root gall Heteroderidae Heterodera schachtii
root gall Longidoridae Paralongidorus maximus
root gall Meloidogynidae Meloidogyne hapla
root gall Meloidogynidae Meloidogyne naasi
leaf vagrant Aphididae Aulacorthum solani
leaf vagrant summer generation Aphididae Myzus persicae
leaf vagrant Aphididae Macrosiphum euphorbiae
root vagrant summer generation Aphididae Rhopalosiphoninus staphyleae tulipaellus


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 4.i.2020