1/25
B - Common Name- Scientific name - Common hosts or abiotic symptoms

Bacterial leaf scorch
Xylella fastidiosa Oak, Maple, Sycamore

Bacterial leaf spot
Xanthomonas spp. English Ivy

Bagworm
Thyridopteryx ephemeraeformis Arborvitae, Cedar, Juniper, Leyland Cypress


Balsam woolly adelgid Abies
piceae Fir

Beech leaf disease
Litylenchus crenatae mccannii Beech


Black knot
Apiosporina morbosa Cherry, Plum

Black root rot
Berkeleyomyces basicola Holly, Boxwood, Various


Black spot of rose
Diplocarpon rosae Rose

Black turpentine beetle
Dendroctonus terebrans Pines


Black vine weevil
Otiorhynchus sulcatus Azalea, Hemlock, Japanese Holly, Rhododendron


Botryosphaeria canker
Botryosphaeria spp. Various


Botrytis flower blight
Botrytis cinerea Marigold, Pansy, Geranium


Boxtree moth
Cydalima perspectalis Boxwood


Boxwood blight
Calonectria pseudonaviculata Boxwood, Sarcococca, Pachysandra


Boxwood dieback
Colletotrichum theobromicola Boxwood


Boxwood leafminer
Monarthropalpus flavus Boxwood


Boxwood psyllid
Cacopsylla buxi Boxwood


Boxwood spider mite
Eurytetranychus buxi Boxwood


Brittle cinder fungus
Kretzschmaria deusta Maple and others


Broad mite
Polyphagotarsonemus latus Various


Bronze birch borer
Agrilus anxius Birch


Bronze felt blight
Herpotrichia spp. Conifers


Brown marmorated stink bug
Halyomorpha halys various (Aesthetic plants and crops)


Brown patch
Rhizoctonia solani Turf


Brown soft scale
Coccus Hesperidum Various


Brown spot needle blight
Lecanosticta acicola Pine, Deodar cedar
