Distribution: Most fruit-growing states and provinces in eastern North America. Adult moths have a wingspan of about an inch and a black and yellow color pattern which resembles that of a wasp. Dogwood Borer Synanthedon scitula The dogwood borer is one of the most serious pests of flowering dogwood in Connecticut. See also. Female dogwood borer's 4th abdominal segment is entirely yellow, while the male's is black with a narrow yellow ring. Damage caused by clearwing moth larvae. [1], Synanthedon scitula eggs are a light chestnut brown color and are 0.4 to 0.6 millimeters across. Dogwood Borer Synanthedon scitula The dogwood borer is one of the most serious pests of flowering dogwood in Connecticut. Cultivated blueberries in New Jersey are sometimes heavily damaged (Driggers 1929). There are six stages. (46) Photo: Cliff Sadof Trunk damage caused by rhododendron borer. Small, wet areas on the bark, dead branches, adventitious growth (water sprouts on trunk and large branches), or sloughing and cracking of bark all can be symptoms of dogwood borer attack. Dogwood anthracnose is the disease that can cause tree decline and mortality. 103(1): 50Ð56 (2010) ABSTRACT Studies examining the factors that inßuence the mating, oviposition, and development of dogwood borer, Synanthedon scitula (Harris) (Lepidoptera: Sesiidae), and that pertain to its Dogwood borer larva are attracted to grafted dogwood trees, … These beetles fly to the new growth and chew a series of holes around the stem and then another series of holes one forth to half an inch away. Peachtree borer larvae a ©ack mainly young trees, feeding under the bark from the root crown to about 2 feet above ground level. The insect has been very injurious to red-osier dogwood in Chicago parks (Forbes 1911). Dogwood Borer, The dogwood borer, a native clearwing moth, can be found from southeastern Canada to Florida, and as far west as the Mississippi. On apple, DWB larvae feed primarily in burrknot tissue on clonal rootstocks. Dogwood Borer, The dogwood borer, a native clearwing moth, can be found from southeastern Canada to Florida, and as far west as the Mississippi. They are marked with a hexagonal pattern of lines. Larvae overwinter in their feeding tunnel, and resume eating whenever the temperature exceeds 45 to 50 degrees Fahrenheit, or 7 to 10 degrees Celsius. (62) Photo: John Davidson Rhododendron borer adult male. The dogwood twig borer, Oberea tripunctata, is a beetle that breeds in dogwood, sourwood, elm and various fruit trees. Synanthedon scitula eggs are a light chestnut brown color and are 0.4 to 0.6 millimeters across. Dogwood borers overwinter as larvae under the bark. However, rootstocks without the tendency to make a burrknot have not yet been developed. 2 B. winding, raised trails in the bark, visible without digging into bark, found primarily on sunny side of 1-6 year old wood. They are marked with a hexagonal pattern of lines. (46) Photo: Cliff Sadof Trunk damage caused by rhododendron borer. Description of Damage The larvae tunnel down the center of live green twigs. Soc. The adults appear in the spring and the females lay eggs in the smaller twigs of the tree. Adults mate and eggs are laid on wounds or old borer injuries. LATIN NAME: Synanthedon scitula (Harris) LIFE CYCLE: Larvae overwinter under bark in burr knots, around cankers and damaged bark. (45) Photo: John Davidson Pupal skin of dogwood borer protruding from trunk. Several species of clearwing and flatheaded borers can infest landscape plants. Entrance holes with exuded sawdust are to be found on the main trunk and larger branches. 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