Contents: By Damage and Image
(In progress)
Contents: Alphabetical
alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
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
borers
branch and twig borer
brown marmorated stink bug

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

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

dogwood sawfly
Douglas fir sawfly
Douglas fir twig weevil
earwigs
elm leafminer
European pine shoot moth
European shot-hole borer
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
lacebugs
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
roseslug
sawflies
scale
sequoia pitch moth
speckled green fruitworm
spittlebug
tent caterpillars
thrips
viburnum leaf beetle
violet gall midge
western poplar clearwing
western spotted cucumber beetle
white pine weevil
whiteflies
woolly ash aphid

Back to Home

Contact Us

Rose curculio weevil

The rose curculio, Merhynchites (=Rhynchites) bicolor can be found feeding on rosacious hosts including wild and domestic roses; blackberries, raspberries, and thimbleberries thoughout the northwest. These variably-colored beetles can range from a bright lacquer red to all black. They have a very long snout, useful to penetrate buds for feeding and laying eggs.

In western Oregon a population of adults were noted during the week of May 7th, 2007. They were aggregated near the buds and flowers of thimbleberry.

Further information about rose curculio can be found at these websites:

Baldo Villegas' Rose Weevils (Curculios) website is one of the most thorough available with great pictures and helpful lifecycle information.

Nanette Londeree also has nice images of the rose curculio and damage on roses in her web article, Garden Bad Guys - rose curculios.

Cool pictures at the BugGuide website.

Rose curculio weevil adult
rose curculio weevil adult
 
Rose curculio weevil adults on flower bud
rose curculio adults on bud
 
Rose curculio adult closeup
rose curculio adult

Rose curculio weevil bud damage. Note the two holes in the bud on the left and the dead bud on the right (stem damage)
rose curculio damage on buds
Rose curculio weevil damage to blossom
rose curculio weevil damage on blossom
Website editor:
Robin Rosetta

Page last modified 5/14/07

 

Before applying any of the information found on this site, please read our disclaimer.
Copyright © 2014, All Rights Reserved