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LocationCommon NameLatin NameHostWhere?Causer typeAlternate host/generationComments
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Railway OrchardPear RustGymnosporangium sabinaePearLeavesFungusJuniperJuniper needed within 6km
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Western ArboretumSpangle GallNeuroterus quercusbaccarumEnglish & Sessile OakLeavesAsexual generationWaspOak male catkins plus occasionally leavesAlternate causes Currant Galls in Spring (sexual generation)
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Western ArboretumCauliflower GallAceria fraxinivoraAshKeys (fruit)MiteCan stay for a couple of years
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Western ArboretumAceria macrochelaField MapleLeavesMite
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Western ArboretumArtichoke GallAndricus foecundatrixEnglish & Sessile OakBudsAsexual generationWaspOak male catkins
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Western ArboretumKnopper GallAndricus quercuscalicisEnglish & Sessile OakAcorn (fruit)Asexual generationWaspTurkey oak, male catkinsFirst seen in 1960s
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Western ArboretumSilk Button GallNeuroterus numismalisEnglish & Sessile OakLeavesAsexual generationWaspOak leaves - blister gall
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Western ArboretumIteomyia capreaeGoat and Grey WillowsLeavesMidgeUncertain of ID
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Western ArboretumCola-nut GallAndricus lignicolusEnglish & Sessile OakBudsAsexual generationWaspTurkey oak buds
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Western ArboretumSmooth spangle GallNeuroterus albipesOakLeavesAsexual generationWaspSchenck's gall on Oak leaves
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South SlopeOyster GallNeuroterus anthracinusOakLeavesAsexual generationWaspApril bud gall
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South SlopeAndricus grossulariaeEnglish & Sessile OakAcorn cupsAsexual generationWaspTurkey oak, catkins
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South SlopePolystepha malpighiiOakLeavesMidgeUncertain of ID
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South SlopeMarble GallAndricus kollariEnglish & Sessile OakBudsAsexual generationWaspTurkey oak, catkinsOften on saplings or scrubby oaks
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South SlopeWillow RedgallPotania proximaWillowsLeavesSawfly
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South SlopeAceria tetanothrixWillowsLeavesMite
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South SlopeVasates quadripedesSilver, Red and Sugar MaplesLeavesMite
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Notes
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Asexual generation: The sexual female (that is one that is born from a population of males and females) lays eggs which initiates the gall production. The wasps that emerge are all females which go on to lay eggs on the alternate host
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