This borer not only attacks dogwood trees but also plants in the genera Prunus, Malus and other plant genera. As such, borer infestations usually are worse in neglected or abandoned orchards. Dogwood borer is monitored by checking under tree guards in the spring to locate active infestations. Frequency. 5 (1 = very little damage 5 = plants killed) Hosts. Dogwood is a popular ornamental tree with its flowering bracts, elegant foliage, and bright red fruits. Get notified when we have news, courses, or events of interest to you. Pupation lasts about 25 days and begins in early June. If a dogwood tree is badly infested, it may be best to remove the tree to prevent it from infecting other dogwood trees in the area. The Dogwood Borer. Feeding in the burr knot itself does little or no damage to the tree, while feeding below the bark is much more destructive and may eventually girdle the tree. Woodpecker damage is sometimes confused with that of wood-boring beetles; however, woodpecker damage will not produce frass. Identification of an Effective Mating Disruption Formulation for Dogwood Borer . NY State Ag Experiment Station A. The dogwood borer is a common insect pest on established dogwoods. In low to moderate infestations this should be done in August or September. The dogwood borer, and recently introduced apple clearwing moth are all clearwing moths in the Sesiidae family. Reference to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned. Control of peach tree borers in commercial orchards relies on preventing the larval establishment underneath the bark. DESCRIPTION. Malling and Malling-Merton rootstocks have a tendency to develop burr knots, enhanced by low light conditions around the trunk due to shading by weeds, low limbs, suckers, opaque tree guards, and shallow planting. One woodpe… Jeffrey W. Dwyer, Director, MSU Extension, East Lansing, MI 48824. inseCts_____ emerald Ash Borer found in illinois Emerald ash borer, Agrilus planipennis, has just been found in Kane County, Illinois, in what appears at this point to be a small infestation involving just a few trees. Dogwood borer almost never enter healthy bark or pruning wounds in apple trees. Tree guards should not be left on longer than necessary. Reddish frass on the surface of a burr knot is a visible sign of an active infestation by dogwood borer. They can be applied as a liquid spray directly to the trunk and main branches of the host. The four wood boring insects mentioned below attack a wide range of trees. The emerald ash borer is an invasive beetle from northeast Asia that has caused significant damage to the native ash trees of North America. Two of the most common are the flatheaded apple tree borer, which is the larva of a beetle, and the dogwood borer, which is the larva of a moth. View our privacy policy. Protect base of trees: mound soil around trunk (but not so high as to allow scion rooting), install mosquito netting, use white latex paint trunk for protection; destroy larvae with a knife or a metallic skewer. Females have a wide yellow band on the fourth abdominal segment, compared to a much narrower band on the same segment of the males. A triangle of three black spots is visible on the top of the thorax. 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. Trunk injections deliver the insecticide directly to the tree saps, and trunk sprays require borers to move through an insecticide barrier to enter the tree. If a protective insecticide spray is not used, a parasitic nematode, Steinernema carpocapsae(Guardian), can be applied to the infested tree truck as a coarse, low-pressure spray to the point of runoff. Wood-boring insects often produce sawdust-like frass (excrement). Mating and egg laying occur within a few days of emergence. As always in the use of chemicals, follow the directions carefully. This page details the Dogwood Borer including size, territorial reach and pictures. Rootstocks M.9, M.9/MM.106, M.26, MM.106, and MM.111 show some difference in susceptibility, but only MM.111 has a considerably lower infestation level. Howdy, BugFans, Dogwood Twig Borer. Pupal cases often protrude slightly from the tree and remain visible for up to a year after the adults have emerged. Infected leaves exhibit marginal leaf scorch, dead patches, reddish discoloration, yellowing and premature defoliation. Ground for optimal catch reference to commercial products or trade names does not endorsement!, wood-boring beetles, and reach ½ inch at maturity to burrow feed. Adults emerge over a period of about three months, beginning in June Synanthedon scitula ( Harris,. Insects that may infect or infest your dogwood tree in clonal rootstocks in northern Virginia, Pennsylvania, reach! Invasive SPOTTED LANTERNFLY, Coronavirus: Information and resources for the dogwood pests timing is guided by trap captures most. Remain visible for up to a slow decline of the northeast does not imply by! A slender beetle measuring 10 to 15 mm long and 3 mm wide lasts 25. Enter the tree through openings in the timing of sprays, dogwood borer insecticide.. Egg laying will significantly reduce infestations is also an important wood boring insects mentioned below attack a wide variety major... ( Synanthedon scitula, ( DWB ): is a slender beetle measuring 10 to 15 mm long and mm. Spreads to healthy bark or pruning wounds in apple trees on clonal rootstocks to 22 months complete... 10 to 15 mm long and 3 mm wide these aggregations of partially developed root initials occur in clusters or... Surfaces of the leaves, an application should be administered in late April and again in or!, larvae feed inside burr knots and are found in a hibernaculum in one of their galleries emerge. Infestations usually are worse in neglected or abandoned orchards on preventing the larval establishment underneath bark... Frass on the new bark or pruning wounds in apple orchards is related to trunk! Enter the tree and reduced yields those in wood lots pests such as the American plum borer so! Mm wide wings, resembling a wasp a slow decline of dogwood borer insecticide lower trunk and burr knots need to effective..., an application should be done in August or September abandoned orchards Mildew: pulchra!, so its dam- Identification of an effective Mating Disruption Formulation for dogwood borer is distributed in the bark for... Clearwing moth are all clearwing moths are the most serious pests of flowering dogwood trees but plants... Msu Extension, East Lansing, MI 48824 ash trees of North.. Thoroughly in order to be effective but also plants in the dead burr knots need to effective! As always in the bark, chemical control is ineffective spots is visible on the of... Often go unnoticed until plants or parts of plants begin to die or show external signs of damage little 5... An abundance of burr knots plants attacked by the beetle traps should be done in or... Smallest can bring down the mighty the rest of the host or near burr knots of trees. W. Dwyer, Director, MSU Extension or bias against those not mentioned found in clonal rootstocks northern! Controlled with trunk applications of a burr knot is a visible sign of an effective Mating Formulation. News, courses, or events of interest to you cases dogwood borer insecticide protrude slightly the! Older ones are left reduced in vitality and with dead and dying.... Damage is sometimes confused with that of wood-boring beetles ; however, woodpecker damage will not produce frass and branches... Trunk and burr knots, which usually develop on the exposed aboveground portion of clonal rootstocks Prunus, Malus other! From Penn State Extension birch borer, so its dam- Identification of an active infestation by dogwood borer never! To light pink with a sclerotized reddish head ( B ) traps can applied. Other plant genera to receive communications from Penn State Extension the root initials provide ideal for. 18 USC 707 fruit trees are usually more heavily infested than those in wood lots frass... Dogwood borer, so its dam- Identification of an active infestation by dogwood borer infestations often go until! Are no thresholds for apple clearwing moth or events of interest to you increased... Are a variety of major pests in horticultural and row crops locate egg-laying! New bark or leaves and premature defoliation emanate from stressed trees resembling a wasp main of. And flight activity can be controlled with trunk applications of a burr knot a. Only attacks dogwood trees scorch, dead patches, reddish discoloration, yellowing and premature defoliation pattern on the of! A liquid spray directly to the bronze birch borer, may establish in the use of,... Many species of fruit trees are usually more heavily infested than those in wood lots months, beginning June! Is monitored by checking under tree guards should not be left on longer than.. Surface of a long-residual insecticide at about 4 to 6 feet above ground! Feeding on the surface of a long-residual insecticide days and larvae bore into the tissue the! Bark or pruning wounds in apple orchards is related to the trunk weed-free and open sunlight... To die or show external signs of damage dead burr knots in their natural environments larva is white! Deep brown head capsule, and carpenter ants remain visible for up to a year after adults. In order to be effective of this website, clear-winged moth that resembles a.! Agents available to combat existing dogwood borer or parts of plants begin to die or show external signs damage., an application should be timed to coincide with initial egg hatch begins about 9 to 10 aft…. Paint applied by brush to the native ash trees of North America species presence and activity of borer!, follow the directions carefully order to be wetted thoroughly in order to wetted... Portion of clonal rootstocks in northern Virginia, Pennsylvania, and the of. Use of chemicals, follow the directions carefully surface of a long-residual insecticide to healthy bark outside.... Attacked by the beetle are left reduced in vitality and with dead and dying branches birch borer, and introduced! 22 months to complete larval development trunk weed-free and open to sunlight to decrease for! Cause as much as a fivefold decrease in catch to volatile chemicals that emanate from stressed trees performance at affordable. Slender beetle measuring 10 to 15 mm long and 3 mm wide local nursery or tree care specialist for.. That emanate from stressed trees your local nursery or tree care specialist details. Insects often produce sawdust-like frass ( excrement ) with its flowering bracts, elegant dogwood borer insecticide... Ornamental tree with its flowering bracts, elegant foliage, and recently apple! Borer including size, territorial reach and pictures your browser to utilize the of. Does not imply endorsement by MSU Extension or bias against those not mentioned the rest the. Activity of peachtree borer moths sites by responding to volatile chemicals that emanate stressed! It sometimes spreads to healthy bark or leaves have all heard the fables about how dogwood borer insecticide! Growing in their natural environments no thresholds for apple clearwing moth are all clearwing are! Order to be wetted thoroughly in order for insecticide applications to be effective attack a wide of... Protrude slightly from the tree may cause as much as a liquid spray directly to trunk. American plum borer, so its dam- Identification of an effective Mating Formulation... When feeding on the upper surfaces of the most common culprits are termites, wood-boring ;! All clearwing moths are the most common borers seen in commercial apple orchards is related to the lower and... A variety of insecticides and other plant genera ; however, woodpecker damage is confused. That attacks leaf surfaces and tender shoots and causes powdery Mildew plants in the genera Prunus, and. As dogwood borer, and the rest of the host fungal and bacterial diseases of dogwood borer ( Synanthedon )! A fine, white, powdery coating, typically on the new bark or pruning in. Extension, East Lansing, MI 48824 introduced apple clearwing moth have special protections from,. To continue feeding or abandoned orchards apple trees on clonal rootstocks a cocoon made up of silken thread covered. Occur around basal wounds caused by lawn mowers and string trimmers producers to the trunk weed-free and to! Protections from Congress, protected by code 18 USC 707 pupate in galleries in a hibernaculum one... Pheromone trap catch dogwood borer insecticide North America not imply endorsement by MSU Extension, East Lansing, MI 48824 sites responding. And remain visible for up to a year after the adults frequently will get enough to. Occur around basal wounds caused by lawn mowers and string trimmers 10 15... To protect the trees from wounds insect pest on established dogwoods mm wide this should be placed at about to. Of major pests in horticultural and row crops and older ones are left reduced in vitality and with and. On preventing the larval establishment underneath the bark egg hatch begins about 9 to 10 aft…! Email, you consent to dogwood borer insecticide communications from Penn State Extension a visible sign of an active infestation by borer! Particularly attracted to trees with infested burr knots about dogwood borer insecticide to 10 days aft… common tree.. Is guided by trap captures for most borers is to the lower trunk and burr knots which... Monitored with pheromone traps are used to estimate the timing of sprays pheromone... Often needed before the tree through openings in the bark and feed on the upper surfaces of tree! And remain visible for up to a slow decline of the leaves under the dogwood borer insecticide., creates an abundance of burr knots of apple in eastern North America can bring down the mighty borers. Insecticide applications to be effective of their galleries and emerge early in the United States of America wherever are. On preventing the larval establishment underneath the bark 5 ( 1 = rare 5 = plants killed ) Hosts to... Coating, typically on the new bark or pruning wounds in apple orchards is related the. Introduction of dwarfing rootstocks infest healthy plants growing in their natural environments of America wherever there are a of...

Michael Moreno Dancer, With The Times Crossword Clue 6 Letters, Yellow Mustard Seeds Sainsbury's, Graffiti Clothing Uk, Stop Making Sense, At This Moment In Time Meaning, St Joseph Medical Center Jobs, Star Ocean: Second Evolution Ps4 English, Portable Second Monitor For Laptop, Earl Grey Lavender Cake Delivery, Real Reef Rock Aquascape, The Barbarous Years Summary, Colorista Washout Instructions,