CONTACT OWEN TREE AT:
(800)724-6680

Scale Insects

There are many different types of scale insects. The following kinds represent some of the most commonly occurring in Michigan. Scale insects can eventually kill your plants, trees and shrubs.

Oystershell Scale

This insect's waxy covering resembles a tiny oystershell. Most are gray, although there is a brown-colored type. Oystershell scales occur on most deciduous shrubs and trees but cause the most injury to lilacs and cotoneaster. The insects may become so numerous that stems are encrusted. Continued sap feeding by scales can cause branches to become spindly and leaves to turn yellow, eventually killing the plants. Eggs pass the winter under the protective covering of the dead female scale, hatching from late May to mid June. Young scale insects are called "crawlers" and have legs that allow them to move to the new growth. Here they begin feeding by inserting a thread-like feeding tube through the bark. They lose their legs when they shed their first skin, a process called "molting". Young scales then secrete a protective covering.
Oystershell Scale on tree
oystershell scale Photo:  USDA Forest Service Region 2 Rocky Mt Region Archive Bugwood.org
The most effective control strategy is to spray two to three times at about weekly intervals with insecticides, beginning at egg hatch, when crawlers first appear.

Pine Needle Scale

Mature scales are small, slender, and chalky white. The female is nearly twice the length of the males. Heavy infestations on pine and spruce trees cause needles to become yellow, and can kill individual branches. The insect winters in the egg stage under the female scale covering. Eggs hatch about when the new growth appears in the spring. Newly hatched crawlers move to green needles, begin feeding, and produce the typical white covering.
There may be two generations in Michigan,  the first hatching in early to mid June, and the second in late July or early August. Use insecticides during the hatching period when crawlers are observed for maximum effectiveness.
Pine Needle Scale on Pines
Pine Needle Scale Photo:   Scott Tunnock USDA Forest Service Bugwood.orgscale

Euonymus Scale

Male scales are small, slender, and chalky-white. Females are pear shaped, brown, and about twice the size of males. Euonymous scale is found on all varieties of Euonymous, and will infest a few other types of shrubs. The insect attacks both stems and leaves. Stems often become so heavily encrusted with scales that they appear white. Shrubs can be killed if scale is not controlled.
Mature female scales overwinter on the host plants. Eggs laid under the scales in early spring hatch in late May and early June. During the summer, ail stages can be found at any time, therefore it is possible to have 2 or 3 overlapping generations each year.
Euonymus Scale on shrub
Photo:  John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org

Detecting Crawlers

Control will be most effective if insecticide sprays are applied when the crawler (newly hatched) stage is present. Scale crawlers are minute, yellow, oval shaped insects. They are barely visible to the unaided eye, so regular examination should be made with a magnifying glass. Crawlers are mobile only during the first stage of development. This stage has a duration of 7 to 10 days.
How to Control Scale insects
(800)724-6680
www.owentree.com
How to identify Scale Insects
tree service in Rochester Hills, MI
tree service Davison, MI
tree service Grand Blanc, MI
tree service in Bloomfield Hills, MI
tree service Lapeer, MI
tree service Flint, MI
tree service in Clarkston, MI
tree service in Metamora, MI
tree service in Macomb, MI
tree service Troy, MI
tree service in Lake Orion, MI
Name
Address
City
State
Zip Code
Home Phone
Cell Phone
Work Phone
E-Mail
Tree, Lawn, or Landscape Question or Service Needed
Owen Tree Service provides tree, lawn, and landscape services to the following cities and towns:
Genesee County, Michigan:
● Burton
● Davison
● Flushing
● Goodrich
● Linden
● Otisville
● Clio
● Fenton
● Gaines
● Grand Blanc
● Montrose
● Otter Lake
● Flint
● Genesee
● Lennon
● Mt Morris
● Swartz Creek
Lapeer County, Michigan:
● Almont
● Brown City
● Columbiaville
● Imlay City
● Metamora
● Peck
● Attica
● Clifford
● Dryden
● Lapeer
● North Branch
● Sandusky
● Hadley
● Mayville
● Otter Lake
● Silverwood
Macomb County, Michigan:
● Armada
● Clinton Twp
● Grosse Pointe
● Macomb
● New Haven
● St Clair Shores
● Centerline
● Detroit
● Grosse Pointe Farms
● Ray
● Sterling Heights
● Chesterfield
● Eastpointe
● Grosse Pointe Shores
● Memphis
● Romeo
● Utica
● Clinton
● Fraser
● Grosse Pointe Woods
● Mt Clemens
● Roseville
● Warren
● Harrison Twp
● New Baltimore
● Shelby Twp
● Washington
Oakland County, Michigan:
● Auburn Hills
● Bloomfield Village
● Ferndale
● Leonard
● Orion
● South Lyon
● Berkley
● Clarkston
● Franklin
● Madison Heights
● Ortonville
● Southfield
● Beverly Hills
● Clawson
● Hazel Park
● Milford
● Oxford
● Troy
● Bingham Farms
● Commerce Twp
● Highland
● Novi
● Pleasant Ridge
● Walled Lake
● Birmingham
● Davisburg
● Holly
● Oak Park
● Pontiac
● Waterford
● Bloomfield
● Detroit
● Huntington Woods
● Oakland
● Rochester
● West Bloomfield
● Bloomfield Hills
● Farmington
● Lake Orion
● Oakland Twp
● Rochester Hills
● White Lake
● Farmington Hills
● Lathrup Village
● Orchard Lake
● Royal Oak
● Wixom
St. Clair County, Michigan:
● Algonac
● Casco
● East China
● Harbor Beach
● Lexington
● Peck
● Allenton
● Clay
● Emmett
● Harsens Island
● Marine City
● Port Huron
● Berlin
● Clyde
● Fair Haven
● Jeddo
● Marysville
● Richmond
● Brockway
● Columbus
● Fort Gratiot
● Kimball
● Memphis
● Sandusky
● Capac
● Cottrellville
● Goodells
● Lakeport
● North Street
● St Clair
Owen Tree Service
Quality Comes With Knowledge and Experience