1997). Dogwood borer, Synanthedon scitula, (DWB): Is a common pest in the burr knots of apple trees on clonal rootstocks. org This Dogwood twig borer (Oberea tripunctata) missed the recent “Dining on Dogwood” episode simply because it wasn’t foraging among the dogwood’s white flowers; the BugLady found it in early July on a prairie plant (there was probably a red-osier dogwood nearby).The Dogwood tree borer’s name is a study in confusion. Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Figure 4: Extensive tunneling injuries produced by larvae of the Gambel oak borer. �C��=�ȹT���+ϣ�5�v;,�@q��sg8A�mUoH�.vE���T��Ee����i6%pE�+��J�P� 5!l���?F�3:q r2M+f������ �;�� Q���.����c�5�S("4F���>���͌jm�5E��LW$���rLC�)��� �����RS?��9�4�%o�����. College of Natural Resources and Environment, Virginia/Maryland Regional College of Veterinary Medicine. A member of the clearwing moth family, the dogwood borer, Synanthedon scitula (Harris), is one of the most destructive pests of flowering dogwood, Cornus floridaL., affecting plantings in homes and parks (Johnson and Lyon 1991). Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. An equal opportunity/affirmative action employer. Adult male dogwood borer, Synanthedon scitula (Harris). Pest: Dogwood Borer (Synanthedon scitula (Harris)) Order: Lepidoptera. The dogwood borer overwinters as a larva concealed within a burrknot. Figure 1: Bronze birch borer laying egg under bark crevice. Though dogwood trees are, for the most part, an easy to care for landscaping tree, they do have some pests. Dogwood borer is also the major insect pest of flowering dogwood, a valuable ornamental species, causing losses to homeowners, municipalities, and nursery operators (Hartman et al. Competitive grant from the Dogwood City Grotto of the National Speleological Society. }�C�9+��w�.5i�$g3wpㆵvCZ���zr��$�^~�^��`����I,p�Q�-���Xk+�a��cݹ�.rk��B�kmt��X��� �w���0�-1�j��GNGJʟ+�ݩuwB�@#�ti��@.U>σ�쥕^�3q�!���J���(��(�5�����!�Q�杮�jk����K�&��V���a�(�2�B����� �K,�`���W���.�Thh���f�n��&�jm��D��� k?��đ?$�aa��i�8�����,ml��.t�?�9ոV�v|�xmk�m�1��� -rG�!����ȇuut <>/Metadata 89 0 R/ViewerPreferences 90 0 R>> Virginia Cooperative Extension materials are available for public use, reprint, or citation without further permission, provided the use includes credit to the author and to Virginia Cooperative Extension, Virginia Tech, and Virginia State University. Life Cycle. 3 0 obj The dogwood borer rarely kills a tree in one season, but if left unchecked, these pests can eventually kill a dogwood tree, especially a young dogwood … The head is dark to almost black. Small trees or branches may be girdled. The adult female borer lays its eggs on the bark and dies soon after. 2 0 obj A factsheet on the dogwood twig borer, an ornamental pest. ���@��P=n��W�����B��|.���|`���>Z���C�~�*�Rz�Э�y���5m�8_D���7*����e]��-R���E�np",�P��&'>�Ǥa�X&������� ��Y�'~aaV#1�H�$3�}��CY�%�?������j����"��!S�Yʿ�����!P@R ��$sZ8�L�z� ;�a*����.�_�F8fɬ��֍�P��� U��pm�A+�C�$F:D�a�{�&�h|��rG�u0DH�KR~Zd�d�+����ΉH���Ļ�v�$������Đq���{�IeC��t���$���2N���5>E���f'U��x���ډ7�-���q�t�?0NrE�@D���Q �Ô�&I+���9��:h#��=��('ɘ�/eW5Q=�3���j�YtzR���r�_��1[�oF�C�B�'���� 9��(�1q�bere[!б),5���N�ZX��j��,4uЅF����†�CQ��"����b\U���)H��,O�N��tn��|%����Xh�ݔd�VZ����.�F�\�Hj��ᾏ�Jx����4��0}����K�g��1�ʩ\�BV���0�fX�(K������։n�8�fM���k����,u�y�� �%�X��m��ů�l��4=!p�IF�e����B��*�jR�3t�����U��sNmZOq;�V�˝���]��]�s��4��w�nn�C�7h}���a3�E���4�"�>�n/��� ����joy:�U+j�r:�SL\��/y�)���MS��L��K�ytzRƯ��.�~4����w��HP=�o{���F�]0v2��۵�Zx Adult is bluish-black with yellow bands and clear wings, resembling a wasp. The DWB has one generation per year throughout its geographic distribution. They may take 13 to 22 months to co… &�v{wy!`��SQ�a�RObv��>|�X^��,�����py������~���v���Ź�%W�1�X�0���*���O�]>t��C����0�Q�x�z|&�S��))y��P#�"ޗ��\��>V>��y4�����(H���Ȁ�A�c`BK�P�(��%=�W�9`��T��B_Ư��V����σ�Z��UY� Dogwood Borer Synanthedon scitula The dogwood borer is one of the most serious pests of flowering dogwood in Connecticut. Dogwood Borer in Apple Larry J. Gut,1,2 Peter H. McGhee,2 and Ron Perry3 Michigan State University, East Lansing, MI 48824 Additional index words. Very young trees are frequently killed and older ones are left reduced in vitality and with dead and dying branches. The insect has a wide host range including dogwood, pecan, oak, plum, and apple. 444-625 (ENTO-355NP) Authors as Published. © 2020 Virginia Polytechnic Institute and State University. With transparent wings and black and yellow bands, the Dogwood Borer is a great mimic of bees and wasps. 2011. Mitigation of human waste on multi-day cave expeditions. Home > Pest management > dogwood borer Dogwood borer larvae develop in shallow tunnels in burr knots on dwarfing and semi-dwarfing rootstocks at or below the graft union. The paper, authored by Dr. Distribution: Most fruit-growing states and provinces in eastern North America. Dogwood borer - Synanthedon scitula (Harr.) Dogwood Borer (Synanthedon scitula) Detailing the physical features, habits, territorial reach and other identifying qualities of the Dogwood Borer. Dogwood anthracnose is the disease that can cause tree decline and mortality. C. Borer, R. Miller, A. Fortini, co-investigators. Very young trees are frequently killed and older ones are left reduced in vitality and with dead and dying branches. The larvae of the borer lives in the cambial area and can kill branches or entire trees. Family: Sesiidae Host Plants: Primarily a pest of flowering dogwood (Cornus florida) but also may attack flowering cherry, apple, and various other deciduous hosts.Description: Flowering dogwoods that are older and especially those that have been wounded by mowers or line trimmers are most susceptible. burrknot, rootstock, Sesiidae, Synanthedon scitula, cultural control, reduced insecticides Abstract. Young trees are frequently killed, and older ones are reduced in vitality, often leading to death. dogwood. They enter trees through the bark. Funding awarded in support of a student research project. Dogwood Borer Damage at the Base of Flowering Dogwood. endobj Aunque los árboles de cornejo son, en su mayor parte, un árbol de paisajismo fácil de cuidar, tienen algunas plagas. A triangle of three black spots is visible on the top of the thorax. Insect. The larvae feed on the phloem tissue. Figure 2: Bronze birch borer larva, a type of flatheaded borer. Cultivated trees are usually more heavily infested than those in wood lots. Howdy, BugFans, Dogwood Twig Borer. Adult – The adult is a slender beetle measuring 10 to 15 mm long and 3 mm wide. Photo: James Solomon, USDA Forest Service, Bugwood.org Small, wet areas on the bark, dead branches, adventitious growth (water sprouts on trunk and large branches), or sloughing and cracking of bark can all be symptoms of dogwood borer … ��8��5�p��� i�nP�4��qq0y���"_Bp ��� �4[���At ���OH�.43x���ѧ� c�,��x��q�w��H�n�:��Nj=�|͗bH�8���P܁��j��F�v��W��ѨA[!w/��=��:�9J�AE$w��m���K���I���֤�l}�ZF[ vO����f�c����&y�lf;��Q؛�a��������6�^2d���:=�/����A���c�����v2�p�ҭ,�z� ~ ��İ��f�J����:�"? Dogwood borer Synanthedon scitula (Harris) — Lepidoptera: Sesiidae. A native pest, the borer is known by several other common names: pecan sesia, nine-bark borer, woody gall borer, oak gall borer and others. Synanthedon scitula, the dogwood borer or pecan borer is a major pest of many plants including the dogwood and pecan. The dogwood borer makes irregular tunnels under the bark on the main stem and sometimes on the base of limbs. It is an extremely notorious pest tripunctata, the dogwood twig borer is a species of longhorn beetle that is a widespread pest that attacks dogwood trees. %���� Phtograph by David Shetlar, The Ohio State University. Dogwood borer (Synanthedon scitula)- is the most serious insect pest of dogwoods. endobj Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg. Lea este artículo para obtener consejos sobre el control del barrenador del cornejo. Adults can be present from July to September. The wing covers are yellow tan, with a narrow, black line on the inner edge and a broader, darker line on the … Virginia Cooperative Extension programs and employment are open to all, regardless of age, color, disability, gender, gender identity, gender expression, national origin, political affiliation, race, religion, sexual orientation, genetic information, veteran status, or any other basis protected by law. Dogwood Borer. Dogwood borer adults are clearwing moths that look like a wasp. The best prevention is to avoid damage to the bark with equip-ment such as lawn mowers or weed eaters. It is also an important pest of many other ornamental, fruit, and nut trees. dogwood trees actually increased dogwood borer infesta-tion (Owen 1991). Figure 5 Larva of dogwood borer. Types of Clearwing Borers Dogwood borer, Synanthedon scitula, prefers flowering dogwood (Cornus florida) as its host. %PDF-1.7 As the larvae grow larger the eventually begin to feed on the sapwood. In its larval stage DWB infests the trunks and branches of apple, dogwood, pecan, elm, hickory, and willow. Dogwood Borer, The dogwood borer, a native clearwing moth, can be found from southeastern Canada to Florida, and as far west as the Mississippi. Dogwood Twig Borer. ID. One of these pests is the dogwood borer. eU�9<0�l�F��3��D�. Hosts The dogwood borer occurs throughout the midwestern and eastern United States and southeastern Canada. Larvae are nearly white to light pink with a deep brown head capsule, and reach ½ inch at maturity. C. Borer, faculty sponsor. <>/ExtGState<>/XObject<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 612 792] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>> stream NY State Ag Experiment Station A. Credits: James Solomon, USDA Forest Service, www.forestryimages. borer also infests oak, chestnut, elm, hickory, willow, pecan and apple. The dogwood borer (Synanthedon scitula) is one of the most serious pests of flowering dogwood in Connecticut. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg, VA, United States; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg, VA, United States. Adults are typical black and yellow clear-winged moth similar to but smaller than adult lesser peachtree borer and peachtree borer, with a wingspan of only ¾ inch. �iS��� Őu�Ҟ�4G3YI��,q�CaGh{����GV5L���ɸ���v��x��2���EW��O�I��3�(�q4�s���mK����iE��2�E��9!�o� MORE BORER: High density systems carrying 1200 to 2000 trees per acre can carry very high populations of endemic dogwood borer, simply by the shear number of infestation sites utilized. This publication is available in a PDF file format only. The relationship between the extent of burrknots on apple rootstocks and dog- Infesta ons in young trees usually occur in the main trunk, o Len around lawn mower injuries. endobj Editor’s note: This article is from the archives of the MSU Crop Advisory Team Alerts.Check the label of any pesticide referenced to ensure your use is included. We have found an average of 1 to 4 larva per 3-4″ tree caliper, in highly infested trees that have had successive infestations for three or more years. These root initials provide ideal locations for the dogwood borer to lay eggs and for larva to burrow and feed upon. Dogwood twig borer, Oberea tripunctata (Swederus), Cerambycidae, COLEOPTERA. The borer infests a wide range of host plants, and dogwood trees may be infested from a variety of nearby host plants. x��Zmo�� ���"抔��p@����b�vs-�^?�2#��H>�J�ߙ�Hɖ�8Y�-�%ќ��g�b�~b�}���������{v����vy�q�%B2���%�����?�Ċˋ��ˋw? 4 0 obj Gut, et. 4����}�Iߪx�h��~� �=�c.OM���R�T�L(q x�|Y�` Insecticides with more residual activity (long lasting effect) are being applied on the lower trunk and burr knots. <> Una de estas plagas es el perforador de cornejo. Infesta ons in older trees are likely to be higher up in limb crotches or main limbs and associated Females have a wide yellow band on the fourth abdominal segment, compared to a much narrower band on the same segment of the males. Eric Day, Insect ID Lab Manager, Department of Entomology, Virginia Tech. Photos. Reddish frass on the exterior of the knot indicates the presence of the larvae. 1 0 obj For Figure 3. DESCRIPTION. Synanthedon scitula (Harris) Lepidoptera: Sesiidae. In spring, it feeds on burrknot tissue until it pupates in May. Other plants attacked by this insect include flowering cherry, apple, mountain ash, willow and oak. We began a study in our IPM Apple System work at Clarksville in1998 to determine the potential of mounding soil compared to insecticides to control dogwood borer in apple. The dwarfing rootstock, M.9, creates an abundance of burr knots. The dogwood borer (Synanthedon scitula; DWB) is a small clearwing moth native to eastern North America. wood trees is the dogwood borer. Eric Day, Insect ID Lab Manager, Department of Entomology, Virginia Tech. <> Figure 3: Emerald ash borer adult next to D-shaped exit hole.Photograph by David Shetlar, The Ohio State University. Dogwood borer. Dogwood borer. The Dogwood Borer. Main trunk, o Len around lawn mower injuries Damage at the Base of flowering.. Lays its eggs on the sapwood on apple rootstocks and dog- dogwood borer, Synanthedon scitula ( Harris ) Lepidoptera! 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To lay eggs and for larva to burrow and feed upon — Lepidoptera: Sesiidae adults are moths! Next to D-shaped exit hole.Photograph by David Shetlar, the Ohio State University eastern North America to avoid to! Borer adults are clearwing moths that look like a wasp transparent wings and black and yellow,... 1: Bronze birch borer laying egg under bark crevice infests the trunks and branches of apple trees clonal... Initials provide ideal locations for the most serious pests of flowering dogwood months to co… dogwood borer... The lower trunk and burr knots of apple, dogwood, pecan, elm,,... Tienen algunas plagas Regional college of Veterinary Medicine makes irregular tunnels under the bark with such... ( Cornus florida ) as its host adult – the adult is a major pest many...