Plant Parasites of Europe

leafminers, galls and fungi

genus Cucurbita

organparasitic modestagenotetaxonomic groupparasite
predatorEulophidaePediobius metallicus
seedsvagrantLygaeidaeMegalonotus praetextatus
flowervagrantCoreidaeLeptoglossus gonagra
leafpredatorMiridaeDicyphus cerastii
stemscalePseudococcidaePlanococcus citri
leafvagrantNoctuidaeAutographa gamma
flowerhiddenThripidaeFrankliniella intonsa
leafhiddenTortricidaeCnephasia incertana
leafdownErysiphalesGolovinomyces tabaci
leafscaleAleyrodidaeTrialeurodes ricini
leafscaleAleyrodidaeBemisia tabaci
leafscaleAleyrodidaeTrialeurodes vaporariorum
leafminerAgromyzidaeChromatomyia horticola
leafvagrantsummer generationAphididaeMyzus persicae
rootvagrantsummer generationAphididaeRhopalosiphum rufiabdominale
leafvagrantsummer generationAphididaeAphis fabae
stemvagrantAphididaeAphis craccivora
leafdownErysiphalesGolovinomyces cucurbitacearum
leafdownErysiphalesGolovinomyces orontii
leafdownErysiphalesLeveillula taurica
leafdownErysiphalesPodosphaera xanthii
leafdownPeronosporalesPseudoperonospora cubensis
leafleaf spotCapnodialesCladosporium cucumerinum
leafminerAgromyzidaeLiriomyza bryoniae
leafminerAgromyzidaeLiriomyza strigata
leafminerAgromyzidaeLiriomyza trifolii
leafvagrantAphididaeMacrosiphum euphorbiae
leafvagrantAphididaeAphis gossypii
rootvagrantAphididaeRhopalosiphoninus latysiphon


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.


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