Plant Parasites of Europe

leafminers, galls and fungi

genus Yucca

Determination table

organ mode stage main group group family parasite P G S
leafscaleInsectaHemiptera SternorrhynchaAleyrodidaeAleurodicus dispersus 4958
leafsaprotrophicFungiAscomycotaXylariales incertae sedisAnthostomella sphaeroidea45
leaffreeInsectaHemiptera SternorrhynchaAphididaeAphis asclepiadis22
leaffreesummer gen.InsectaHemiptera SternorrhynchaAphididaeAphis fabae 335535
leaffreesummer gen.InsectaHemiptera SternorrhynchaAphididaeAphis fabae fabae154224
leaffreeInsectaHemiptera SternorrhynchaAphididaeAphis gossypii 174217
leafleaf spotFungiAscomycotaDidymellaceaeAscochyta yuccifolia11
leafscaleInsectaHemiptera CoccoideaDiaspididaeAspidiotus nerii 119149
leaffreeInsectaThysanopteraPhlaeothripidaeBagnalliella yuccae11
fruitborerInsectaLepidopteraBatrachedridaeBatrachedra enormis13
leaffreeAcariEriophyoideaEriophyidaeCecidophyopsis hendersoni13
leafdownFungiAscomycotaCladosporiaceaeCladosporium yuccae11
leafscaleInsectaHemiptera CoccoideaCoccidaeCoccus hesperidum 121149
leafsaprotrophicFungiAscomycotaMycosphaerellaceaeCollarispora valgourgensis11
leafleaf spotFungiAscomycotaConiothyriaceaeConiothyrium concentricum33
stemsaprotrophicFungiAscomycotaDiaporthaceaeDiaporthe arctii5160
flowerhiddenInsectaThysanopteraThripidaeFrankliniella occidentalis8593
scaleInsectaHemiptera CoccoideaDiaspididaeHemiberlesia lataniae 3941
stemscaleInsectaHemiptera CoccoideaDiaspididaeLepidosaphes ulmi 79117
flowerfreeimagoInsectaColeopteraChrysomelidaeLuperomorpha xanthodera2626
leafleaf spotFungiAscomycotaBotryosphaeriaceaeMacrophoma yuccae11
scaleInsectaHemiptera CoccoideaDiaspididaeMelanaspis inopinata2737
stemfreeInsectaHemiptera FulgoromorphaFlatidaeMetcalfa pruinosa 167185
leafsaprotrophicFungiAscomycotaDidymosphaeriaceaeMontagnula phragmospora22
stemborerInsectaLepidopteraTineidaeOpogona sacchari1011
leafscaleInsectaHemiptera CoccoideaEriococcidaeOvaticoccus agavacearum11
leafscaleInsectaHemiptera CoccoideaEriococcidaeOvaticoccus agavium44
leaffreeAcariEriophyoideaPhytoptidaeOziella yuccae13
systemicscaleInsectaHemiptera CoccoideaDiaspididaeParlatoria oleae 4977
leafleaf spotFungiAscomycotaPleosporales incertae sedisPhoma gloriosa11
leafleaf spotFungiAscomycotaPhyllostictaceaePhyllosticta consimilis11
stemscaleInsectaHemiptera CoccoideaDiaspididaePseudaulacaspis pentagona 6789
leafleaf spotFungiAscomycotaMycosphaerellaceaePseudocercospora concentrica14
leafscaleInsectaHemiptera CoccoideaCoccidaeSaissetia coffeae4444
stemborerInsectaColeopteraDryophthoridaeScyphophorus acupunctatus411
leafleaf spotFungiAscomycotaPleosporaceaeStemphylium vesicarium 6265

Organ

the part of the plant that most conspicuously is hit by the parasite

bud: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
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
canker: restricted area of dead plant tissue
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tissue
free: free-living, vagrant
gall: swelling and/or malformation
hidden: concealed by dense webbing, leaf folds etc.
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
saprotrophic: developing on recently dead, still identifiable, plant tissue
scale: scale insect
stripe: longitudinal line of fungal tissue in a grass leaf

COLUMNS

P: with image
G: number of genera on this website
S: number of species on this website

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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.

 

Last modified 9.vii.2026