Contents: By Damage and Image
In progress
Contents: Alphabetical

alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
ash whitefly
azalea bark scale
azalea lace bug
azalea sawfly
Bagrada bug
bark lice
Barypeithes root weevil
Beneficial nematodes
biocontrol of root weevils
birch aphid
black bean aphid
black cherry aphids
black stem borer
bluegum psyllid
Boisduval scale
branch and twig borer
brown marmorated stink bug

bronze birch borer
boxwood leafminer
boxwood psyllid
bulb flies
cabbage whitefly
carnation tortrix
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

crane flies
cypress tip moth

dogwood sawfly
Douglas fir sawfly
Douglas fir twig weevil
elm leafminer
European pine sawfly new
European pine shoot moth
European wool carder bee
emerald ash borer
Fall webworm
fir coneworm new
flatheaded cedar borer
ground beetle gallery
Hemerocallis gall midge new
hollyhock weevil
honeylocust plant bug
honeylocust pod gall midge
Heliothis phloxiphaga
holly bud moth
huckleberry root aphids
ground mealybug
Japanese beetle
lady beetle gallery
leaf weevil
light brown apple moth
Linden aphid new
lupine aphid new
Macrosiphum rhamni new
maple aphids
maple tip moth
maple midge
March flies
mountain ash sawfly
Myzocallis sp. on red oak new
Narcissus bulb fly
natural enemies gallery
oak ambrosia beetle
oak slug
oak twig gall wasp
obscure root weevil
Pacific flatheaded borer
peach tree borer
peach twig borer
pear blight beetle
pear psylla
pear leaf-curling midge
pear sawfly
pine needle scale
pine and cone spittlebug
poplar and willow borer
Psyllopsis fraxinicola
rose curculio weevil
rose midge
rove beetle gallery
rose stem girdler
sequoia pitch moth
soldier beetle gallery
snapdragon plume moth new
snakefly gallery
speckled green fruitworm
meadow spittlebug
spotted asparagus beetle
spruce twig aphid
tent caterpillars
viburnum leaf beetle
violet gall midge
western poplar clearwing
western spotted cucumber beetle
white pine weevil
woolly alder aphid new
woolly ash aphid
woolly beech aphid

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Maple tip moth

Maple tip moth, Proteoteras aesculana Riley, also known as maple shoot borer and maple twig borer, is an occasional pest in nursery production in the Pacific Northwest. Damage occurs when the caterpillar bores into new growing terminals, causing tip dieback. New terminals must then be trained adding to labor time and costs. Damage in the field was visible by May in 2004. In 2005 we have seen damage in July. Hosts include maple, specifically red maple, silver maple, sugar maple, bigleaf maple, and boxelder (Furniss and Carolin, 1977; Johnson and Lyon, 1991).

In Oregon the moths are reported to emerge in July and August (Schuh and Mote, 1948). The moths are dark olive green with yellow and gray mottling. Larvae are pale white to gray and approximately 10 mm long when mature. The head is dark brown and the thoracic shield, yellow-brown.

Management is difficult as the larvae enter the shoots soon after emergence of the first two pair of leaves (Hale and Halcomb, 1994). Recommendations from the work of Hale and Halcomb in Tennessee are that applications of protective insecticides be applied when the first two pair of leaves have come out. Another application 5-7 days later may be necessary on seedling trees due to seedling growth variability. Bifenthrin (Talstar 10 WP) was the most effective treatment in their studies.

References cited:

Vanek, S. 2011. Maple Shoot Borer: Biology and Management of a Prominent Nursery Pest. University of Kentucky Extension. 9 March 2012.

Furniss, R.L. and V. M. Carolin. 1977. Western Forest Insects. USDA Forest Service. Miscellaneous Publication No. 1339. 654 pp.

Hale, F.A. and M. Halcomb. 1994. Shootboring caterpillars, Proteoteras spp. (Lepidoptera: Tortricidae). Major pests of red maples in Tennessee nurseries. Proc. Southern Nurserymen's Association Research Conference. 39: 178-179. Web link

Hale, F.A. and M. Halcomb. 1995. Timing and control of Proteoteras aesculana (Lepidoptera): Tortricidae) in Red Maple. Proc. Southern Nurserymen's Association Research Conference. 40: 198-200. Web link

Johnson, W.T. and H.H. Lyon. 1991. Insects that Feed on Trees and Shrubs. Cornell University Press. 2nd edition revised. 560 pp.

Schuh, J. and D.C. Mote. 1948. Insect Pests of Nursery and Ornamental Trees and Shrubs in Oregon. Agricultual Experiment Station, Oregon State Univeristy (College), Corvallis. Station bulletin 449. 164 pp.

Maple tip moth damage on silver maple
maple tip moth damage silver maple
Photo: James Solomon, US Forest Service, Forestry Images
Maple tip bore hole
maple tip bore hole
Photo: Anonymous
Maple tip moth damage
maple tip moth damage
Photo: Rosetta
Maple tip borer larva in stem
maple tip borer larva in stem
Photo: Anonymous
Maple tip moth larva
maple tip moth larva
Photo: Rosetta
Website editor:
Robin Rosetta

Page last modified 3/9/12


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