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ARS Home Northeast Area Washington, D.C. National Arboretum Floral and Nursery Plants Research Research Publications at this Location





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Title:   Author  item
                                            OLIVER, JASON - TSUitem
                                            Fare, Donnaitem
                                            Ranger, Christopheritem
                                            YOUSSEF, NADEER - TSUitem
                                            Scholl, Sue Sueitem
                                            HALCOMB, MARK - UNIVERSITY OF TENNESSEEitem
                                            Reding, Michael

                                                         - *Mike*item
                                            Moyseenko, James
  Submitted to: Meeting Abstract
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 12/20/2008
                                    Publication  Date: 12/13/2009
                                    Citation: Oliver, J.B., Fare, D.C., Ranger, C.M., Youssef, N.N., Scholl, S., Halcomb, M.A., Reding, M.E., Moyseenko, J.J. Leafhopper control in filed-grown red maples with systemic insecticides. Meeting Abstract.Interpretive Summary:
                                Technical Abstract: Red maple, a popular landscape tree, can be susceptible to foliar damage caused by potato leafhopper feeding. Typical potato leafhopper injury includes distorted leaf tissue and reduced shoot growth.  This research identified systemic neonicotinoid insecticides, Allectus and Discus, which controlled leafhopper damage up to three years post-application on some cultivars.  An imidacloprid tablet formulation had less leafhopper control during the first year, but provided suppression during the second and third year after application. Most systemic insecticides have a higher application cost than contact sprays, such as pyrethroids; however, there are several advantages:  fewer applications, control of leafhopper injury for longer periods, prevention of other pests like flatheaded borers, better plant aesthetics, and enhanced plant growth.  During the 3-yr test, trunk growth was greater with plants treated with Allectus and Discus (22 and 44 ml) drenches and imidacloprid tablets compared to untreated trees, with the exception of ‘Franksred’ treated with Allectus.  Total height growth with ‘Autumn Flame’ and ‘Franksred’ was greater for plants receiving the high rate of Discus (44 ml) or the imidacloprid tablets than untreated or trees treated with Discus (22 ml) or Allectus.


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