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Foodplant / gall
Agrobacterium tumefaciens causes gall of stem (esp. base) of Ligustrum

Plant / associate
adult of Aneurus avenius is associated with dead twig of Ligustrum

In Great Britain and/or Ireland:
Foodplant / pathogen
Armillaria mellea s.l. infects and damages Ligustrum
Other: major host/prey

Foodplant / sap sucker
Chionaspis salicis sucks sap of live stem of Ligustrum

Foodplant / visitor
adult of Cryptocephalus nitidulus visits for nectar and/or pollen flower of Ligustrum
Remarks: season: early 5-9

Plant / resting place / on
female of Dendrothrips ornatus may be found on live leaf of Ligustrum
Remarks: season: 4-5,7-9,11

Foodplant / saprobe
immersed, often loosely grouped perithecium of Diaporthe eres is saprobic on wood of Ligustrum

Foodplant / saprobe
immersed pycnidium of Diplodia coelomycetous anamorph of Diplodia ligustri is saprobic on dead twig (thin) of Ligustrum
Remarks: season: 4-6

Foodplant / saprobe
hysterothecium of Gloniopsis praelonga is saprobic on dead twig of Ligustrum
Remarks: season: 1-12

Foodplant / saprobe
effuse colony of Helminthosporium dematiaceous anamorph of Helminthosporium velutinum is saprobic on fallen, dead branch of Ligustrum

Plant / associate
Lytta vesicatoria is associated with Ligustrum

Foodplant / saprobe
mostly epiphyllous, numerous pseudothecium of Mycosphaerella ligustri is saprobic on leaf of Ligustrum

Foodplant / gall
Myzus ligustri causes gall of discoloured, tightly curled leaf (young) of Ligustrum
Remarks: season: spring-summer

Plant / associate
perithecium of Nitschkia brevispina is associated with Ligustrum
Remarks: season: 2-4

Foodplant / saprobe
apothecium of Perrotia flammea is saprobic on dead twig of Ligustrum
Remarks: season: 8-9

Foodplant / gall
larva of Placochela ligustri causes gall of inflorescence of Ligustrum

Foodplant / pathogen
Rosellinia necatrix infects and damages yellowing, prematurely falling leaf of Ligustrum
Other: major host/prey

Foodplant / open feeder
nocturnal larva of Tenthredo vespa grazes on leaf of Ligustrum

Foodplant / saprobe
erumpent, in small groups from bark crack apothecium of Tympanis ligustri is saprobic on dead branch of Ligustrum
Remarks: season: 1-5

Foodplant / saprobe
gregarious, stromatic, immersed, unilocular pycnidium of Cytospora coelomycetous anamorph of Valsa cypri is saprobic on dead branch of Ligustrum
Remarks: season: 3

Foodplant / saprobe
colony of Xylohypha dematiaceous anamorph of Xylohypha nigrescens is saprobic on wood of Ligustrum