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Link to original content: https://bladmineerders.nl/host-plants/plantae/cycadopsida/cycadaceae/cycas/genus-cycas/
genus Cycas – Plant Parasites of Europe

Plant Parasites of Europe

leafminers, galls and fungi

genus Cycas

Determination table

organ mode stage main group group family parasite P G S
leafleaf spot FungiAscomycotaDidymellaceaeAscochyta cycadina1
leafscale InsectaHemiptera CoccoideaDiaspididaeAspidiotus nerii 119134
InsectaHemiptera CoccoideaDiaspididaeAulacaspis yasumatsui11
scale InsectaHemiptera CoccoideaDiaspididaeChrysomphalus aonidum 4238
scale InsectaHemiptera CoccoideaDiaspididaeChrysomphalus dictyospermi4751
leafleaf spot FungiAscomycotaCladosporiaceaeCladosporium cycadia1
leafscale InsectaHemiptera CoccoideaCoccidaeCoccus hesperidum 121115
stemscale InsectaHemiptera CoccoideaDiaspididaeDiaspidiotus lenticularis1315
scale InsectaHemiptera CoccoideaDiaspididaeFurchadaspis zamiae11
leafscale InsectaHemiptera CoccoideaDiaspididaeFurchadiaspis zamiae32
scale InsectaHemiptera CoccoideaDiaspididaeHemiberlesia lataniae 3937
scale InsectaHemiptera CoccoideaDiaspididaeHemiberlesia rapax2217
leafleaf spot FungiAscomycotaPezizomycotina incertae sedisLeptothyrium cycadis1
stemfree InsectaHemiptera FulgoromorphaFlatidaeMetcalfa pruinosa 16782
leafleaf spot FungiBasidiomycotaMicrostromataceaeMicrostroma cycadis1
scale InsectaHemiptera CoccoideaCoccidaeParasaissetia nigra1310
leafleaf spot FungiAscomycotaPhyllostictaceaePhyllosticta cycadina1
leafleaf spot FungiAscomycotaPhyllostictaceaePhyllosticta cycadis1
stemscale InsectaHemiptera CoccoideaDiaspididaePseudaulacaspis pentagona 6783
stemscale InsectaHemiptera CoccoideaPseudococcidaePseudococcus calceolariae1511
stemscale InsectaHemiptera CoccoideaPseudococcidaePseudococcus longispinus 5037
stemscale InsectaHemiptera CoccoideaPseudococcidaePseudococcus viburni 4936
rootscale InsectaHemiptera CoccoideaRhizoecidaeRhizoecus americanus11
leafscale InsectaHemiptera CoccoideaCoccidaeSaissetia coffeae4428
stemscale InsectaHemiptera CoccoideaCoccidaeSaissetia oleae 7279

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

FILTER AND SORT TABLE

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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 30.x.2024