They often produce a honeydew which attracts another Japanese maple problem, sooty mold. In some cases, … The eggs beneath the waxy covering of the female are white with a purple hue. Japanese Maple Scale (Lopholeucaspis japonica (Cockerell)), Family Diaspididae Plants Damaged: Japanese maple scale is showing up in more and more landscapes and nurseries lately. When monitoring for this species on trees and shrubs, examine the trunk, branches, and twigs particularly at the branch collar where this pest often se… Beneath this outer shell, the adult and nymph scales are lavender in color. The life history of this scale insect is not well known in the United States. Scales are most commonly found on bark but can be found on leaves, in particular, leaves of infested magnolias. Scale management is difficult but an incorrect identification can make it impossible. JMS have an oystershell-shaped body covered in a white, waxy protective coating. in both landscapes and nurseries in Pennsylvania. This type of scale insect is known as an armored scale because the insects protect themselves underneath an armored cover that is usually white in color. The Japanese maple scale (JMS), Lopholeucaspis japonica Cockerell (Figure 1), is an insect pest of Japanese maples and several other ornamental tree species. Eggs develop in late-spring, hatch, and crawlers (immature nymphs) emerge in mid-May. … This pest overwinters as females. We have been seeing it on hollies. Japanese maple scale (Lopholeucaspis japonica), also known as Japanese scale or pear white scale, is an invasive pest that infests a wide range of woody plants.The insect is native to Japan. Excessive loss of plant fluid reduces the growth and health of the plant. This tiny insect can also attack Japanese maple, red maple, dogwood, lilac, zelkova, yellowwood, pyracantha, privet, euonymus, redbud, stewartia, cherry, magnolia and Itea. Handle carefully and store in original labeled containers out of the reach of children, pets, and livestock. Japanese maple scale is an exotic armored scale species that infests a wide range of host plants (45 genera in 27 families) in the eastern United States. This is a challenge in JMS management because: (i) crawler hatch is staggered over several weeks; and (ii) once the crawlers establish in place they begin to form their wax coverings in only three days. Japanese maple trees can provide a striking focal point, be the perfect plant to set off a large container, or grow into an impressive bonsai specimen. ; Pyracantha sp. The waxy coating over the body is white, but the female, eggs and crawlers are lavender in color (Figures 2 and 3). Japanese maple scale (Lopholeucaspis japonica), also known as Japanese scale or pear white scale, is an invasive pest that infests a wide range of woody plants. Although generally hardy, Japanese maples can suffer from a number of insect pest infestations, including infestations by both soft and armored scales. The Japanese maple scale (JMS), Lopholeucaspis japonica Cockerell, is an insect pest of Japanese maples and several other ornamental tree species. There are hundreds of Japanese maple varieties that come in various sizes with a large assortment of leaf shapes and colors that range from shades of green to orange, red, purple, and variegated. The insect is native to Japan. Look for this scale on Japanese maple, American red maple, dogwood, zelkova, lilac, yellowwood, pyracantha, privet, holly, … Japanese Maple Scale (Lopholeucaspis japonica (Cockerell)), Family Diaspididae Plants Damaged: Japanese maple scale is showing up in more and more landscapes and nurseries lately. Adult female white peach scale and white prunicola scale have a distinctive sunny side-up fried egg appearance to their rounded, white, waxy covers. White Peach Scale Diagnostic Guide . Dispose of empty containers right away, in a safe manner and place. Recommended insecticides include the insect growth regulators pyriproxyfen (Distance) or buprofezin (Talus 70DF) and the neonicotinoid clothianidin (Arena 50 WDG). Get notified when we have news, courses, or events of interest to you. This site is maintained by Center for Agriculture, Food and the Environment in the College of Natural Sciences. This pest overwinters as females. This insect pest is quite small and blends in well with host bark, allowing it to avoid detection until population levels are high. Connect with UMass Extension Landscape, Nursery and Urban Forestry Program: UMass Research and Education Center Farms, Conservation Assessment Prioritization System (CAPS), Extension Risk Management/Crop Insurance Education, North American Aquatic Connectivity Collaborative, Civil Rights and Non-Discrimination Information. The second shed exoskeleton is elongate and reddish brown. Japanese Maple Scale FS-967-2013 Over the past several years, nursery crop producers and landscape managers in Maryland and the eastern U.S. have become increasingly concerned about the pest insect, exotic Japanese maple scale (JMS), Lopholeucaspis japonica(Cockerell) (Hemiptera: Diaspididae). Japanese Maple Scale. Japanese Maple Scale: A Nursery and Landscape Pest Shimat V. Joseph and Will Hudson, Department of Entomology T he Japanese maple scale (JMS), Lopholeucaspis japonica Cockerell (Figure 1), is an insect pest of Japanese maples and several other ornamental tree species. All of these pests present as tiny bumps or cottony dots on twigs and on leaves. Oystershell-Shaped body covered in a safe manner and place it to avoid detection until levels! To STOP the INVASIVE SPOTTED LANTERNFLY, Coronavirus: Information and resources for Extension... 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