Mated females dig burrows at the base of the tree and lay yellowish-white elliptical eggs in niches of chewed, shredded bark around the crown and buttress roots. Scientific Name: Plectrodera scalator Fabricius According to BugGuide: “Adults are reported to browse on shoots of host trees, especially leaf-stems (petioles), and bark.” The host tree is the cottonwood. The BeetleIdentification.org logo, its written content, and photography are unique to this website (unless where indicated) and is protected by all applicable domestic and international intellectual property laws. Capability, Shape, Texture/Pattern, Benefits, Dangers. Cottonwood Borer. It has extremely long antennae that grow to lengths beyond its own body. They are large 1 1/4 inch long, robust longhorned beetles with black antennae as long or longer than the body. Adult beetles can be found on and around host plants during the summer. The beetle will not harm you, though they do have strong jaws and it might pinch slightly if it tries to bite you. Larval stages are rarely encountered unless heavily infested young trees are killed or fall over; medically harmless. Infested mature trees are usually not seriously injured. For additional information, contact your local Texas A&M AgriLife Extension Service agent or search for other state Extension offices. Order: Coleoptera. Adult beetles are dark brown, over 1-1/2 inches long and their antennae are not as long as the body. The beetle has a white face with black antennae. The Cottonwood Borer is part of the Long-Horned Beetle family. The Cottonwood Borer Beetle is a major threat to various tree types including poplar, willow and - or course - cottonwood. Various colors commonly associated with this beetle. It stands among some of the largest beetles in North America. By submitting images to us (BeetleIdentification.org) you acknowledge that you have read and understood our. They develop over a period of 3 to 5 years. Larvae are legless, cylindrical (oval in cross section), creamy-white bodies and brown to black headed, growing to 1 ½ inch long. Development requires 1 and occasionally 2 years before larvae pupate within larval galleries. The body is beautifully marked with a bold pattern of black rectangular areas on a creamy white to yellow background. There are a great many other cerambycid beetles that attack trees and other plants, but few others have larval stages that feed on roots or are larger than the cottonwood borer. Larvae of root borers, such as the tilehorned prionus, Prionus imbricornis (Fabricius), attack apples, Prunus (peaches, plums, etc. Galleries, at and below the soil line, vary in length and form tunnels up to 8-inches long to 2- to 3-inch diameter oval areas, depending on tree size and infestation site. Cottonwood Borers live near river banks and prefer wooded areas with poplar, willow and cottonwood trees. They can bite if mis-handled! The pronotum (neck area) is also white and has large black spiky ovals on it. The Cottonwood Borer is part of the Long-Horned Beetle family. Description: Adult beetles can be found on and around host plants during the summer. The bite may even draw blood. Larvae (grubs) tunnel around the crown and buttress roots. We would urge you to … Photo by C. Allen. They may also make a little buzzing/hissing sound when handled. Click for a hub of Extension resources related to the current COVID-19 situation. Common Name: Cottonwood borer Scientific Name: Plectrodera scalator Fabricius Order: Coleoptera. Adults feed on leaf stems (petioles) and bark of tender shoots, occasionally causing shoots to break, wilt and die, a symptom called, “flagging.”. Authored By Staff Writer; Content ©www.InsectIdentification.org. Texas A&M Veterinary Medical Diagnostics Laboratory, Texas A&M College of Agrculture and Life Sciences, For additional information, contact your local. Adults can be found on infested host plants during the daytime. It is the only species in the genus Plectrodera. Cottonwood borer, Plectrodera scalator Fabricius (Coleoptera: Cerambycidae). It stands among some of the largest … Its body is a creamy white or ivory color with two rows of black blocks on each wing covering. More commonly, they structurally weaken the tree causing it to fall over in high winds. They are often packed with wood shavings (frass). The material presented across this site is for entertainment value and should not be construced as usable for scientific research or medical advice (insect bites, etc...) Please consult licensed, degreed professionals for such information. They are large (1 1/4 inch long), robust longhorned beetles with black antennae as long or longer than the body. ), pears, pecans, poplars, and other trees, by feeding in the crown and larger roots. Habitat and Food Source(s): Mouthparts are for chewing. Description: Adult beetles can be found on and around host plants during the summer. This recommendation can vary on the evaluation from the tree doctor TDA inspector. Its body is a creamy white or ivory color with two rows of black blocks on each wing covering. The cottonwood borer (Plectrodera scalator) is a species of longhorn beetle found in the United States east of the Rocky Mountains that feeds on cottonwood trees. Cottonwood Borers do not pose any threat to children, though they do have very powerful mandibles and they might produce a painful bite if carelessly handled. The body is beautifully marked with a bold pattern of black rectangular areas on a creamy white to yellow … Their antennae are about as long as the body, and they have a prominent spine on each side of the thorax. The map below showcases (in blue) the states and territories of North America where the. Image Credit: Rob W. from Sand Springs, OK, Updated: 9/23/2020; Cottonwood borers primarily infest cottonwood, but also occur on poplars and willows. The pronotum (neck area) is also white and has large black spiky ovals on it. Normally depends on the Geo-targeting of the tree and what posing dangerous to residential areas. white; yellow; black; striped; spotted; wings; flying; antenna. Viewed head-on, the large mandibles of the cottonwood borer are very visible. Larvae and adults feed on willow and poplar, with cottonwood being the most preferred. Texas A&M University recommends removing cottonwood tree if they appear to have borer marks from the beetles. Cottonwood Borer, (Plectrodera scalator Fabricius) is found in the eastern US, New York. Pest Status: Adults are commonly encountered on trunks and branches of cottonwood and willow trees and other host plants during the summer months. Your beetle is a Cottonwood Borer, Plectrodera scalator , one of the most beautiful North American beetles. They do not feed, are active at night and emerge in June and July. They are large (1 1/4 inch long), robust longhorned beetles with black antennae as long or longer than the body. Damage: Young trees may be killed when larvae tunnel under the bark (through the xylem tissue) all the way around the base of the tree, girdling it. The beetle has a white face with black antennae. It is one of the largest insects in North America, with lengths reaching 40 millimetres (1.6 in) and widths, 12 mm (0.47 in). It has extremely long antennae that grow to lengths beyond its own body. Heavily-infested mature trees, particularly in sandy soils, slowly decline and die. Common Name: Cottonwood borer Life Cycle: Adult beetles emerge from mid-May through early-July.
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