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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Western poplar clearwing

Parathene robiniae, the western poplar clearwing can be found on occasion attacking aspens and poplars in nursery systems. The clearwing moths emerge from host plants in summer. The wasplike moths fly to trees where they lay eggs singly in bark crevices often near wounds. The larvae that hatch from these eggs move to a feeding site and begin to eat their way into the phloem and cambium and later form galleries in the wood. It takes two seasons for the larvae to reach maturity and exit from the trees.

Damage is generally found in trunks and larger branches. Sap oozes from wounds and granular frass can be seen.


Forest Pests of North America: Western poplar clearwing

Clearwing Moth Management Guidelines from UC IPM Online has good information for a variety of clearwing moths including a list of pheromone suppliers.

Another local pheromone supplier not included in the list above is Advanced Pheromone Technologies. This is a link to their technical guide for trapping sequoia pitch moth.

western poplar clearwing
Photo: James Solomon
Website editor:
Robin Rosetta

Page last modified 6/5/09


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