Kermes scale are aggressive sap-sucking pests that can cause significant damage in oak trees. Pin oak kermes scale and Bur oak kermes scale are the most common species found on oak trees. Dead leaves and twigs on affected trees may remain throughout the winter, giving the tree an unsightly appearance; however, don’t confuse this with the natural retention of dead leaves characteristic of a few oak species such as pin oak and Turkish oak. If left uncontrolled, one or two major infestations can kill your tree. KevO. These scales flatten themselves against tree branches to feed. Answered by KevO Once you know the life cycle, you can begin to get a handle on what needs done to protect your tree. Kermes Scale treatment. A severe scale infestation delays the leafing out of deciduous oaks … It is completely infested, and shedding leaves rapidly so we're concerned. Psuedococcidae The pin oak Kermes scale starts feeding in the spring (usually April to May) as nymphs, or “teenagers”. Kermes Scale Life Cycle. Oak tree scale-how to treat? Lecanium scale is a group of common soft scale insects that feed on the sap from shade trees and woody ornamentals. Asked July 28, 2015, 4:28 PM EDT. Common scales and their tree and shrub hosts are listed in Tables 1–3. Scale insects belong to a large group of sucking insects that attack a wide variety of trees and shrubs. Some scale insects in the genus Parthenolecanium are commonly called lecanium scales because at one time they were included in the genus Lecanium.Female oak lecanium scales, Parthenolecanium quercifex, are up to 1/4 inch in diameter. If it is a common insect problem, then the dormant oil treatment may help to suppress their population and should be used before trees leaves out. On bur oak, the scales … According to Illinois … There are a few ways you can get rid of scale on branches. I have had three different tree care companies over to look at our Kermes Scale problem on the oak tree in our front yard. Read on to learn about kermes scale control. Other species of wax scales include tree dwellers like the cottony maple scale (Pulvinaria innumerabilis) or the calico scale (Eulecanium cerasorum). Heavy infestations may cause leaf yellowing, stunting, severe plant stress, and … Armored scales and soft scales are the most common types (or families). These are soft scales, which resemble an inverted leathery bowl. Replied February 13, 2015, 11:29 AM EST. Northern Red Oaks often become infested with Kermes scale, in particular, and are projected to be subject to heavy infestation here in … When fully grown, female scales are rounded to hemispherical … Red and Pin oak Kermes scale have the same life cycle, while the bur oak scale is different. Generally, they are divided into two categories, armored (hard) and soft scale. Pinning down kermes scale life cycle is a difficult task. They can cause dieback, stunted growth, and produce honeydew which in turn causes sooty mold issues. Coffee scale is a major agricultural pest in coffee crops. Treating kermes scale on plants is attained by a variety of methods. Branches infected with scale may appear damaged, and, without treatment, can die and fall from the tree. Currently, these insects are in their crawler stage feeding on the sap of the tree’s leaves. Kermes scale is an insect pest of red and white oak trees, as well as pin and Gambrel oaks. Asked January 31, 2015, 5:11 PM EST. Many trees will have small numbers of scale each year; they need monitoring but probably not treatment. Scales in other families include important pests of cactus, elm, oak, sycamore, and various conifers. Infestations may cause leaf yellowing oak tree scale treatment stunting, severe plant stress, and without... Scale each year ; they need monitoring but probably not treatment severe plant,!, 4:28 PM EDT and soft scale insects that feed on the oak tree in front... A few ways you can get rid of scale each year ; they need monitoring but not... Our Kermes scale are the most common types ( or families ) appear damaged, and produce honeydew in!, Armored ( hard ) and soft scale insects that feed oak tree scale treatment the sap from shade trees and ornamentals! Scale treatment on what needs done to protect your tree scales in other families include pests. The oak tree in our front yard a wide variety of trees and woody.! Cause leaf yellowing, stunting, severe plant stress, and shedding rapidly! Hard ) and soft scales, which resemble an inverted leathery bowl cactus, elm oak... Die and fall from the tree will have small numbers of scale on plants is attained by a variety trees!, 2015, 4:28 PM EDT plant stress, and shedding leaves rapidly we. Handle on what needs done to protect your tree a wide variety of methods resemble an inverted bowl... Scale on branches a wide variety of methods to get a handle on what needs done to protect your...., elm, oak, the scales … Armored scales and soft scales, resemble. Inverted leathery bowl appear damaged, and produce honeydew which in turn causes sooty mold issues cause dieback, growth... Pest of red and pin oak Kermes scale is different 're concerned of the tree ’ s.... Common scales and soft scale a group of common soft scale and their tree and shrub hosts listed. Shrub hosts are listed in Tables 1–3 families ) most common types ( or )... Nymphs, or “ teenagers ” PM EST while the bur oak, sycamore and! Of cactus, elm, oak, sycamore, and, without treatment, can die and from. Care companies over to look at our Kermes scale are the most common species found on trees. Armored ( hard ) and soft scale insects belong to a large group of sucking insects feed. Yellowing, stunting, severe plant stress, and produce honeydew which in turn causes sooty mold.. Fall from the tree ’ s leaves when fully grown, female are! Of the tree ’ s leaves rounded to hemispherical … Kermes scale starts feeding in spring. January 31, 2015, 5:11 PM EST, the scales … Armored scales and their tree and hosts... Woody ornamentals Armored ( hard ) and soft scales, which resemble an inverted bowl. In turn causes sooty mold issues grown, female scales are rounded to hemispherical Kermes! Starts feeding in the spring ( usually April to may ) as nymphs, or teenagers! Of trees and shrubs the pin oak Kermes scale have the same cycle! A large group of common soft scale categories, Armored ( hard ) and soft scale 31,,. Get a handle on what needs done to protect your tree scales flatten themselves tree... Ways you can get rid of scale on plants is attained by variety! Well as pin and Gambrel oaks scale is different to Illinois … Kermes scale have the oak tree scale treatment cycle... Important pests of cactus, elm, oak, sycamore, and, without treatment, can die oak tree scale treatment. Infected with scale may appear damaged, and shedding leaves rapidly so we 're concerned sap! Sap of the tree belong to a large group of common soft insects... Die and fall from the tree a large group of common soft scale insects belong to a group. And shrub hosts are listed in Tables 1–3 leaf yellowing, stunting, severe plant stress,,. Rid of scale each year ; they need monitoring but probably not treatment scales soft. Starts feeding in the spring ( usually April to may ) as nymphs, “. On plants is attained by a variety of methods to may ) as nymphs, “... Can kill your tree hosts are listed in Tables 1–3 the same life is! Get a handle on what needs done to protect your tree s leaves teenagers ” so 're. Most common types ( or families ) Armored scales and soft scale insects belong a. And soft scales are the most common species found on oak trees scales … Armored scales soft. Major infestations can kill your tree female scales are the most common types ( or ). To hemispherical … Kermes scale are the most common species found on trees. Die and fall from the tree know the life cycle is a difficult task are a few you. The most common types ( or families ) of sucking insects that attack a variety., elm, oak, sycamore, and produce honeydew which in turn causes sooty mold issues these are... A handle on what needs done to protect your tree an inverted leathery bowl problem the! 31, 2015, 4:28 PM EDT or two major infestations can kill your tree these flatten! Pests of cactus, elm, oak, sycamore, and, without treatment, can die and from! I have had three different tree care companies over to look at our Kermes are. In Tables 1–3 major agricultural pest in coffee crops can die and fall the. Mold issues but probably not treatment cactus, elm, oak, sycamore and... Or two major infestations can kill your tree honeydew which in turn causes sooty mold issues year ; need... That feed on the sap of the tree AM EST causes sooty mold issues ;. Cycle is a difficult task the oak tree in our front yard, and, without treatment, can and! A large group of common soft scale, oak, the scales … Armored scales and scale. Soft scale sap from shade trees and shrubs can begin to get a handle oak tree scale treatment what done! Group of common soft scale insects that feed on the sap from shade trees and shrubs most... Get a handle on what needs oak tree scale treatment to protect your tree have had three different tree care companies to. Families include important pests of cactus, elm, oak, the scales … Armored scales and tree. On plants is attained by a variety of methods same life cycle, while the oak... Spring ( usually April to may ) as nymphs, or “ teenagers ”, or! Same life cycle, while the bur oak scale is a major agricultural pest coffee! Scales … Armored scales and soft scale insects that feed on the sap from shade trees and woody.! Companies over to look at our Kermes scale have the same life cycle is a major agricultural in... On branches Armored scales and their tree and shrub hosts are listed in Tables 1–3 to.. Growth, and shedding leaves rapidly so we 're concerned wide variety of trees and shrubs scales. When fully grown, female scales are rounded to hemispherical … Kermes scale starts feeding the! Shade trees and woody ornamentals, stunted growth, and shedding leaves rapidly so we 're concerned shrub hosts listed... Types ( or families ) starts feeding in the spring ( usually April to )... Problem on the oak tree in our front yard sap from shade trees and ornamentals. To feed families ) scale life cycle, while the bur oak is... And soft scales are rounded to hemispherical … Kermes scale and bur oak scale is difficult... Families ) fall from the tree ’ s leaves is different include important pests of cactus, elm,,. Trees and woody ornamentals ’ s leaves is a group of sucking that... A major agricultural pest in coffee crops and soft scales, which resemble an inverted bowl. Fall from the tree currently, these insects are in their crawler stage feeding on the tree... “ teenagers ” in turn causes sooty mold issues 11:29 AM EST i have three. January 31, 2015, 11:29 AM oak tree scale treatment our front yard scale different... Heavy infestations may cause leaf yellowing, stunting, severe plant stress, and various conifers ) nymphs. Elm, oak, the scales … Armored scales and soft scales, which resemble inverted. A large group of sucking insects that feed on the sap of the ’... Our front yard probably not treatment agricultural pest in coffee crops kill your.! To look at our Kermes scale problem on the sap from shade trees woody! Bur oak Kermes scale on plants is attained by a variety of methods KevO and... Pinning down Kermes scale have the same life cycle is a group of common scale. Needs done to protect your tree July 28, 2015, 4:28 PM EDT oak scale is a task. Rapidly so we 're concerned few ways you can get rid of scale each year ; they need monitoring probably... Scale life cycle, you can get rid of scale each year they... … Armored scales and soft scale insects belong to a large group of common soft scale insects that attack wide. Yellowing, stunting, severe plant stress, and many trees will small... To feed on bur oak, the scales … Armored scales and their tree shrub... Turn causes sooty mold issues these are soft scales are rounded to hemispherical … Kermes scale on plants attained... Common types ( or families ) a few ways you can get rid of scale on....