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Southern Forest HealthResearch and Management UpdateSpring 2015IN THIS ISSUE1 New pine beetle speciesdescribed1 Laurel wilt diseaseconfirmed in Louisiana2 Mike Ulyshen receivesUSFS Early Career ScientistAward2 USFS participates inChildren’s Mardi Grasparade and outreach3 Georgia Science andEngineering Fair3 Publications4 Presentations/LecturesScience and Program HighlightsNew “Mesoamerican Pine Beetle” Described by SRS Scientist andCollaboratorsA newly-discovered species of tree-killing bark beetle inCentral America, Dendroctonus mesoamericanus, hasbeen recently described by a group of scientists includingSouthern Research Station (SRS) research entomologist Dr.Brian Sullivan (SRS 4552, Pineville, LA). Numerous studiesby a team of scientists from the U.S., Mexico and Norwaydetermined that the species is new to science andprovided information needed to manage the insect, whichmay share responsibility with the southern pine beetle(Dendroctonus frontalis) for the catastrophic damage topines in Central America in recent years. The twoDendroctonus species appear to work in cooperation to killtrees, and outbreaks of both may be more persistent anddestructive than those of southern pine beetle alone. Thisdiscovery brings to light a potential exotic threat to theU.S. that was not previously known to exist. Read the fullpaper in the Annals of the Entomological Society ofAmerica (http://www.srs.fs.usda.gov/pubs/47987).Adult mesoamerican pinebeetle removing resin andboring dust from theentrance of its gallery.Photo by Brian Sullivan.For more information contact Brian Sullivan at [email protected] newsletter is ajoint publication of:Laurel wilt disease confirmed in sassafrasin LouisianaUSDA Forest ServiceSouthern Research StationRWU 4552: Insects, Diseasesand Invasive Plants ofSouthern ForestsContact: Bud [email protected] Forest ServiceForest Health Protection,Southern RegionContact: Don [email protected] pathologist Roger Menardand landowner John Cookexamine sassafras trees dyingfrom laurel wilt in Louisiana.Laurel wilt, a deadly disease of redbay and other treesin the Laurel family, was confirmed for the first time inthe state of Louisiana in the fall of 2014. A privatelandowner in Bernice, LA and an NRCS forester soughtassistance from the Forest Health Protection (FHP)Alexandria Field Office after noting the rapid death ofseveral mature sassafras trees. Plant pathologist RogerMenard and entomologist Wood Johnson examinednine trees with symptoms consistent with laurel wilt.(Continued on Page 2)SOUTHERN FOREST HEALTH RESEARCH AND MANAGEMENT UPDATE 1

Plant pathologists Steve Fraedrich (SRS 4552) andTom Harrington (Iowa State University) laterisolated the laurel wilt pathogen (Raffaelealauricola) from several of these trees, andspecimens of the beetle vector (Xyleborusglabratus) were also collected. Subsequentsurveys in Louisiana using beetle traps and woodtissue analysis indicated the disease is present inUnion, Claiborne, and Lincoln Parishes. All casesthus far have been found in otherwise healthysassafras, and either open-grown or located onforest edges. An expanded survey will beconducted in 2015 involving the LA Dept. ofAgriculture and Forestry and the AR ForestryCommission. In addition to sassafras, laurel wilt haskilled millions of redbay trees throughout theSoutheastern U.S. and also kills avocado.Distribution of laurel wilt disease in the Southeastern US as of January30, 2015. lthFor more information please contact WoodJohnson at [email protected] the NewsMike Ulyshen receives US Forest Service Early Career Scientist AwardAfter receiving the 2014 Southern Research Station Director’s Early Career ScientistAward, Dr. Mike Ulyshen (SRS 4552, Athens GA) was subsequently honored at thenational level by receiving the USDA Forest Service Early Career Scientist Award inFebruary 2015. Mike’s highly-productive research program has included biology of theredbay ambrosia beetle, biodiversity impacts of Chinese privet, biological control ofemerald ash borer, and ecological roles of wood decaying organisms. Mike waspresented with the award in Washington D.C. by Jim Reaves, Forest Service DeputyChief for Research and Development.Michael Ulyshen.Photo by Sean Cook.Forest Service participates in Children’sMardi Gras Parade, Alexandria, LAUSFS employees along with Smokey Bear sharedwildfire prevention awareness with the 2015Children’s Mardi Gras Parade crowd in Alexandria,LA. The parade attracts tens of thousands of peoplefrom all over central Louisiana and neighboringstates. The USFS float had families from the KisatchieNational Forest, the Southern Research Station andState & Private Forestry aboard to pass out SmokeyBear items, a favorite for the parade attendees.US Forest Service employees and families with their float atthe 2015 Children’s Mardi Gras parade in Alexandria, LA.SOUTHERN FOREST HEALTH RESEARCH AND MANAGEMENT UPDATE 2

Georgia Science & Engineering FairMary Williams (SRS 4552, Athens GA) served a judge at the 67thGeorgia Science & Engineering Fair on March 27, 2015. Middle andHigh School Students from all across the state enter this competitionevery year, set up exhibits, answer questions and discuss their work.thParticipants in the 67 GeorgiaScience and Engineering Fair.Technology TransferPublications (in print/press):1. Chen, Y., Ulyshen, M.D., Poland, T. in press. Abundance of volatile organic compounds in ash phloem andemerald ash borer larval frass does not attract Tetrastichus planipennisi in Y-tube olfactometer. InsectScience (In Press).2. Cram M.C. and S.W. Fraedrich. 2015. Evaluations of inoculations with arbuscular mycorrhizal fungi oneastern redcedar. Tree Planter’s Notes (In Press).3. Dodds, K., J. Allison, D. Miller, R. Hanavan, and J. Sweeney. 2014. Considering species richness and raritywhen selecting optimal survey traps: Comparisons of semiochemical baited flight intercept traps forCerambycidae in eastern North America. Agric. For. Entomol. 17: 36–47.4. Fraedrich, S. W., T. C Harrington and G. S. Best. 2015. Xyleborus glabratus attacks and systemic infectionsby Raffaelea lauricola associated with dieback of camphortree (Cinnamomum camphora) in thesoutheastern United States. Forest Pathology 45:60-70.5. Harrington, T. C., S. McNew, C. Mayers, S. W. Fraedrich and S. Reed. 2014. Ambrosiella roeperi sp. nov. isthe mycangial symbiont of the granulate ambrosia beetle, Xylosandrus crassiusculus. Mycologia 106:835–845.6. Miller, D.R., K.J. Dodds, E.R. Hoebeke, T.M. Poland and E.A. Willhite. 2015. Variation in the effects ofconophthorin on catches of ambrosia beetles to ethanol-baited traps. J. Econ. Entomol. 108: 183–191.Submitted Publications (in review):1. Cameron, R. S., J.L. Hanula, S.W. Fraedrich, and C. Bates. 2015. Progression and Impact of Laurel WiltDisease within Redbay and Sassafras Populations in Southeast Georgia. SRS Station Research Paper (InReview).2. Fraedrich, S. W., A. E. Mayfield, and J. L. Hanula and T. C. Harrington. 2015. The interactions of Xyleborusglabratus and Raffaelea lauricola with species in the family Lauraceae in the southeastern United States.Proceedings of Workshop on Xyleborus glabratus and Euwallacea spp. Xalapa, Mexico. November 2 - 8,2014. (In Review).3. Miller, D.R., C.M. Crowe, K.J. Dodds, L.D. Galligan, P. de Groot, E.R. Hoebeke, A.E. Mayfield III, T.M. Poland,K.F. Raffa and J. D. Sweeney. Ipsenol, ipsdienol, ethanol and α-pinene: Trap lure blend for Cerambycidaeand Buprestidae (Coleoptera) in pine forests of eastern North America. J. Econ. Entomol. Submitted 31January 2015.SOUTHERN FOREST HEALTH RESEARCH AND MANAGEMENT UPDATE 3

4. Powers, Z., A. Mayfield, J. Frampton, and R. Jetton. Comparison of suspended branch and directinfestation techniques for artificially infesting hemlock seedlings with hemlock woolly adelgid forresistance screening. Forests (In Review).Presentations and Lectures:1. Fraedrich, S. W., A.E. Mayfield, and J.L. Hanula and T.C. Harrington. 2014. The interactions of Xyleborusglabratus and Raffaelea lauricola with species in the family Lauraceae in the southeastern United States.Workshop on Xyleborus glabratus and Euwallacea spp. Xalapa, Mexico. November 2 - 8, 2014.2. Fraedrich, S. W., G. S. Best and C. Bates. 2015. Laurel Wilt: An Introduced Asian Beetle and Its FungalSymbiont Are Changing Maritime Forests in the Southeastern United States. Third Annual Jekyll IslandGreen Screen Event. Jekyll Island, GA. Feb 21, 2015 (Poster).3. Hanula, J.L. 2015. Removal of Chinese privet and its effect on plants and pollinators 5 years later. Classlecture for Univ. of Ga. Hort3333S, Conserving Native Plants. James Affolter, Instructor. March 17, 2015.4. Hanula, J.L. 2015. Seed and Cone Insects of the Southeastern U.S. Class Lecture for Univ. of Ga. FORS4210 Forest Health Protection, Kamal Gandhi, Instructor. February 9, 2015.5. Harrington, T.C., S.W. Fraedrich, 2014. The Raffaelea lauricola/Xyleborus glabratus symbiosis and thethreat of laurel wilt to Asian and American Lauraceae. Workshop on Xyleborus glabratus and Euwallaceaspp. Xalapa, Mexico. November 2 - 8, 2014.6. Jetton, R.M., A.R. Tait, and A.E. Mayfield. 2015. Silvicultural and Integrated Management Strategies forRestoring Hemlock to Degraded Southern Appalachian Cove Forests. 26th USDA Interagency ResearchForum on Invasive Species, January 2015, Annapolis, MD (Poster).7. Lucardi, R.D. Multi-Agency Cooperation Protects our Natural Resources: It’s a Win-Win Opportunity.Savannah Pest Risk Management Meeting. U.S. Customs and Border Protection-Operations Center, Dept.of Homeland Security, in cooperation with USDA-APHIS-PPQ. February 2015, Savannah, GA.8. Lucardi, R.D. 2015. Invited Panelist, Southeastern Ecology & Evolution Conference (SEEC) 2015, Universityof Georgia, Athens, GA. March 2015.9. Lucardi, R.D. and G.N. Ervin. 2015. Ecology of cogongrass in the southeastern US: Where are the gaps inour understanding? 26th USDA Interagency Research Forum on Invasive Species, January 2015, Annapolis,MD (Poster).10. Miller, D.R., J.D. Allison, C.M. Crowe, D. Dickinson, A. Eglitis, R.W. Hofstetter, A.S. Munson, T.M. Poland,L.S. Reid, B.E. Steed and J.D. Sweeney. 2015. Ipsenol, monochamol and α-pinene: Trap lure blend forMonochamus species (Cerambycidae) in Canada and USA. 26th USDA Interagency Research Forum onInvasive Species, Annapolis MD. January 2015.11. Miller, D.R., C.M. Crowe, M.D. Ginzel, T.M. Poland, C.M. Ranger, P.B. Schultz and E.A. Willhite. Effect ofethanol and conophthorin dose on attraction of ambrosia beetles. 26th USDA Interagency ResearchForum on Invasive Species, Annapolis MD. January 2015.12. Miniat, C. S. Brantley, D. Zeitlow, A.E. Mayfield, R.M. Jetton. Physiological Responses of Eastern Hemlock(Tsuga canadensis) to Biological Control and Silvicultural Release: Implications for Hemlock Restoration.Fifth Interagency Conference on Research in the Watersheds, 2-5 Mar 2015, North Charleston, SC (Poster).13. Schulz, A.N., R.D. Lucardi, M.M. Cram, K.J.K. Gandhi. 2015. What’s Happening to the White Pine? AnAssessment of the Eastern White Pine-Scale Insect-Canker Complex in the Southern AppalachianMountains. Southeastern Ecology & Evolution Conference (SEEC) 2015, University of Georgia, March 2015.Athens, GA (Poster).SOUTHERN FOREST HEALTH RESEARCH AND MANAGEMENT UPDATE 4

14. Schulz, A., C. Asaro, D.R. Coyle, M. Cram, R.D. Lucardi, A.M. Mech, K.J.K. Gandhi. 2015. Determining thedistribution of Matsucoccus macrocicatrices in the White Pine Forests of the Southern AppalachianMountains. Warnell Graduate Student Symposium, University of Georgia. February 2015. Athens, GA.15. Schulz, A., C. Asaro, D.R. Coyle, M. Cram, R.D. Lucardi, A.M. Mech, K.J.K. Gandhi. 2015. What’s bugging theWhite Pine? An assessment of the White Pine-scale insect-canker complex in the Southern AppalachianMountains. Warnell Graduate Student Symposium, University of Georgia. February 2015. Athens, GA.16. Schulz, A., C. Asaro, D.R. Coyle, M. Cram, R.D. Lucardi, A.M. Mech, K.J.K. Gandhi. 2015. Interactionsbetween Eastern White Pine (Pinus strobus) and the recently discovered scale insect-pathogen complexin the Southern Appalachians. 26th USDA Interagency Research Forum on Invasive Species. January 2015.Annapolis, MD (Poster).17. Whitney, T.D., K.J.K. Gandhi, R.D. Lucardi. 2015. Genetic characterization of the coevolution betweenPinus strobus and an associated insect herbivore. Warnell Graduate Student Symposium, University ofGeorgia. February 2015, Athens, GA.18. Whitney, T.D., K.J.K. Gandhi, R.D. Lucardi. 2015. Genetic structure and potential coevolution betweenPinus strobus and an insect Herbivore. Southeastern Ecology & Evolution Conference (SEEC), Universityof Georgia, March 2015. Athens, GA (Poster).SOUTHERN FOREST HEALTH RESEARCH AND MANAGEMENT UPDATE 5