Contents: By Damage and Image
(In progress)
Contents: Alphabetical
alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
ash whitefly new
azalea bark scale
azalea lace bug Updated
bark lice
Barypeithes root weevil
Beneficial nematodes
biocontrol of root weevils
birch aphid
black stem borer
bluegum psyllid
branch and twig borer
brown marmorated stink bug

bronze birch borer
boxwood leafminer
boxwood psyllid
bulb flies
carpet beetle New
Calligraph californica

Ceanothus stem gall moth
cereal leaf beetle
cherry ermine moth
chilli thrips
cinnabar moth
clay colored weevil
cottony camellia scale
cutworm Updated
cypress tip moth

dogwood sawfly
Douglas fir sawfly
Douglas fir twig weevil
elm leafminer
European pine shoot moth
European shot-hole borer Updated
European wool carder bee
emerald ash borer
Fall webworm
flatheaded cedar borer
hollyhock weevil
honeylocust plant bug
honeylocust pod gall midge
Heliothis phloxiphaga
holly bud moth
huckleberry root aphids
ground mealybug
lady beetle gallery
leaf weevil
light brown apple moth
maple tip moth
maple midge
March flies
mountain ash sawfly
spruce aphid on spruce
oak ambrosia beetle
oak slug
obscure root weevil
Pacific flatheaded borer
peach tree borer
peach twig borer
pear psylla
pear leaf-curling midge
pear sawfly New
pine needle scale
poplar and willow borer
rose curculio weevil
rose midge
sequoia pitch moth
speckled green fruitworm
tent caterpillars
viburnum leaf beetle
violet gall midge
western poplar clearwing
western spotted cucumber beetle
white pine weevil
woolly ash aphid

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Boxwood psyllid


Boxwood psyllid, Psylla buxi, is a common pest of boxwood, particularly in landscape settings. Feeding by the nymphs and adults causes a characteristic cupping of the new growth. The nymphs produce a waxy secretion giving them a woolly appearance. There is one generation a year. Eggs hatch (eclosure) was noted on April 2 in the North Willamette valley in 2010, April 5 in the Portland metro area in 2007. Adults were noted by the second week of May in western Oregon in 2006.

The following websites have information on boxwood psyllid.

Penn State Entomology: Boxwood psyllid

Childs, Robert. Boxwood psyllid. University of Massachusett's GreenInfo: Info and images are available.

University of California Pest Notes: Psyllids has information on a wide variety of psyllids, some of which might be helpful for boxwood psyllid management.


Damage from boxwood psyllid
boxwood psylla damage
Boxwood psyllid damage
boxwood pyslla damage
Boxwood psyllid damage
boxwood psylla damage
Waxy extrusions from boxwood psylla
waxy extrusions from boxwood psylla

Close-up of waxy extrusions from psylla
Waxy extrusions from boxwood psylla
Waxy extrusions of boxwood psylla
waxy extrusions of boxwood psylla

Closeup of boxwood psyllid nymph extruding wax
boxwood psyllid nymph extruding wax
Boxwood psyllid adult
boxwoood psylla adult
Closeup of psyllid head
closeup of boxwood psyllid head
Boxwood psyllid nymph hatching (eclosing)
boxwood psyllid nymph hatching
Photo: Kirin Elliott
Boxwood psyllid nymph and egg shells
boxwood psyllid nymph and egg shells
Photo: Kirin Elliott
Boxwood psyllid nymph
boxwood psyllid nymph
Photo: Kirin Elliott
Boxwood psyllid nymph
boxwood psylla nymph
Website editor:
Robin Rosetta

Page last modified 4/18/14


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