This fact sheet from clemson includes using spinosad for control when the leafminers are present in the leaves.
Boxwood leafminer fact sheet.
Effective control options for boxwood leafminer include applications of neonicotinoids such as imidacloprid e g.
It occurs everywhere in the usa from the east to the west coast.
There are few known natural enemies of the boxwood leafminer.
Close up of boxwood leafminer larvae.
Columbinae pea leafminer liriomyza huidobrensis.
It is difficult to control the adult leafminers because of their short adult.
As always read and follow label directions paying particular attention to the protection of pollinators restrictions including delaying applications until.
Merit marathon and generics and dinotefuran e g.
Boxwoods buxus spp are enjoyed in a range of landscapes as hedges or screens background plantings topiary pieces and other uses.
Remove and destroy severely affected plants.
These flies are less than inch long and can often be seen swarming around boxwoods in the spring.
Boxwood leafminer monarthropalpus flavus.
Spinosad is the least toxic to the environment.
See section titled insects related pests.
Leafminers printable pdf click on images to see larger view among the many leafminers that affect ornamental and vegetable plants are.
Long distance spread of the pathogen is through the movement of infected nursery material.
This should eliminate the need to use an insecticide.
Microphylla littleleaf boxwood and var.
Severely shearing the foliage before adult emergence or after egg laying ends will reduce the overall population.
Numerous pests and diseases may.
Boxwood leafminer monarthropalpusi flavus is a common and destructive pest that causes significant damage to boxwoods here in the dayton area although the symptoms are often mistaken for winter injury rather than insect infestation since boxwoods are such a popular shrub it s important to control leafminers so they don t spread to neighboring plants and properties.
Insularis korean boxwood b colchica and pachysandra are susceptible.
Dispose of the clippings.
All varieties of boxwood are susceptible but the slower growing english varieties are less.
American serpentine leafminer liriomyza trifolii beet leafminer pegomya betae birch leafminer fenusa pusilla boxwood leafminer monarthropalpus flavus columbine leafminer phytomyza aquilegivora and p.
Pruning boxwood back by about 1 3rd to remove the stems with infested leaves will help reduce this pest.
Boxwood leafminer diptera a fly maggot exposed in the tunnel it has eaten between the layers of a boxwood leaf buxus this pest is the most serious pest of this evergreen plant.
