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 Updated
bulb flies
carpet beetle (images)
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 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 blight beetle Updated
pear psylla
pear leaf-curling midge
pear sawfly
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 Updated
woolly ash aphid

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Peach twig borer damage on purple leaf plum

Peach twig borer, Anarsia lineatella, caused this damage on purple leaf plum. Images are from third week in July.

Useful websites:

WSU Orchard Pest Management Online: Peach twig borer Nice images, useful phenological and management information.

UC IPM Online: Peach twig borer

Berry, R. E. 1998. Peach Twig Borer. Insect and Mites of Economic Importance in the Pacific Northwest, 2nd Ed.

Tip borer damage on plum
tip borer damage on plum
Photo: Rosetta
Tip borer damage
tip borer damage on plum
Photo: Rosetta
Emergence hole in plum terminal
peach twig borer emergence hole
Photo: Rosetta
PTB tunnel in shoot
peach twig borer tunnel in shoot
Photo: Rosetta
peach twig borer caterpillar
peach twig borer caterpillar
Photo: Rosetta
Website editor:
Robin Rosetta

Page last modified 7/29/09


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