March flies

alder flea beetle
aphid management
apple and thorn skeletonizer
apple ermine moth
azaleae bark scale
Barypeithes root weevil
Beneficial nematodes
black stem borer
branch and twig borer
brown marmorated stink bug
bronze birch borer
boxwood leafminer
boxwood psyllid
caterpillars UPDATED
Ceanothus stem gall moth
cherry ermine moth
clay colored weevil
craneflies
cypress tip moth
dogwood sawfly New
Douglas fir twig weevil
earwigs
elm leafminer
European pine shoot moth
European shot-hole borer
emerald ash borer
Fall webworm NEW
flatheaded cedar borer
honeylocust pod gall midge
huckleberry root aphids
ground mealybug
lacebugs
leaf weevil
maple tip moth
maple midge
March flies
spruce aphid on spruce
obscure root weevil
Pacific flatheaded borer
pear leaf-curling midge
pine needle scale
poplar and willow borer
rose curculio weevil
rose midge
roseslug
sawflies
sequoia pitch moth
spittlebug
tent caterpillars NEW
thrips
viburnum leaf beetle
western poplar clearwing
western spotted cucumber beetle
white pine weevil NEW
whiteflies
woolly ash aphid

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March flies

Not considered a nursery production pest, March flies, Bibio albipennis and Bibio xanthippes, are found on occasion in large numbers in production areas. These flies are dimorphic, the males and females differing in appearance. They are often found joined together. This gave rise to the common name of lovebugs for a similar species, Plecia sp., found in the south. For our area, March fly is a misnomer as they are usually found in April and May in Western Oregon.

More information can be found at the following websites:

WSU Fact Sheet: March Flies