{"id":237,"date":"2022-11-09T10:32:58","date_gmt":"2022-11-09T15:32:58","guid":{"rendered":"https:\/\/site.caes.uga.edu\/entomologyresearch\/?page_id=237"},"modified":"2026-04-22T12:23:47","modified_gmt":"2026-04-22T16:23:47","slug":"landscape-ornamentals","status":"publish","type":"page","link":"https:\/\/site.caes.uga.edu\/entomologyresearch\/landscape-ornamentals\/","title":{"rendered":"Landscape & Ornamental Pests"},"content":{"rendered":"\n
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Two-Spot Cotton Leafhopper<\/h3>\n\n\n\n

Amrasca biguttula<\/strong><\/em><\/p>\n\n\n\n

Photo credit: Shimat V Joseph, University of Georgia.<\/p>\n\n\n\n

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Granulate Ambrosia Beetle<\/h3>\n\n\n\n

Xylosandrus crassiusculus <\/em>(Mot.)<\/strong><\/p>\n\n\n\n

Photo credit: Shimat V Joseph, University of Georgia.<\/p>\n\n\n\n

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Brown Marmorated Stink Bug<\/h3>\n\n\n\n

Halyomorpha halys<\/em> (St\u00e5l)<\/strong><\/p>\n\n\n\n

Photo credit: Shimat V Joseph, University of Georgia.<\/p>\n\n\n\n

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Scales in Ornamentals<\/h3>\n\n\n\n

Photo credit: Shimat V Joseph, University of Georgia.<\/p>\n\n\n\n

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Japanese Maple Scale<\/h3>\n\n\n\n

Lopholeucaspis japonica<\/em> Cockerell <\/strong><\/p>\n\n\n\n

Photo credit: Brian Kunkel, University of Delaware.<\/p>\n\n\n\n

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Aphids <\/h3>\n\n\n\n

Photo credit: Shimat V Joseph, University of Georgia.<\/p>\n\n\n\n

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Azalea Bark Scale<\/h3>\n\n\n\n

Eriococcus azalea<\/em> (Comstock)<\/strong><\/p>\n\n\n\n

Photo credit: Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org<\/p>\n\n\n\n

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Bagworms<\/h3>\n\n\n\n

Photo credit: Pennsylvania Department of Conservation and Natural Resources Forestry, Bugwood.org<\/p>\n\n\n\n

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Japanese Beetle<\/h3>\n\n\n\n

Popillia japonica<\/em> Newman<\/strong><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia, Bugwood.org<\/p>\n\n\n\n

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Grass Lace Bug<\/h3>\n\n\n\n

Photo: Kris Braman, University of Georgia.<\/p>\n\n\n\n

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Thrips <\/strong>Species<\/h3>\n\n\n\n

Photo credit: Jack T. Reed, Mississippi State University, Bugwood.org<\/p>\n\n\n\n

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Tea Scale<\/h3>\n\n\n\n

Fiorinia theae<\/strong><\/em> Green<\/strong><\/p>\n\n\n\n

Photo credit: Lorraine Graney, Bartlett Tree Experts, Bugwood.org<\/p>\n\n\n\n

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Mite Vector of Rose Rosette Virus<\/h3>\n\n\n\n

Phyllocoptes fructiphilus<\/em> Keifer<\/strong><\/p>\n\n\n\n

Photo credit: Gary R. Bauchan, USDA-ARS<\/p>\n\n\n\n

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Redheaded Flea Beetle<\/h3>\n\n\n\n

Systena frontalis<\/em> (F.)<\/strong><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia<\/p>\n\n\n\n

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Chilli Thrips<\/h3>\n\n\n\n

Scirtothrips dorsalis<\/em> Hood<\/strong><\/p>\n\n\n\n

Photo credit: Andrew Derksen, USDA-APHIS<\/p>\n\n\n\n

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Larger Canna Leafroller<\/h3>\n\n\n\n

Calpodes ethlius<\/em> (Stoll)<\/strong><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia<\/p>\n\n\n\n

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Fall Webworm<\/h3>\n\n\n\n

Hyphantria cunea<\/em> (Drury)<\/strong><\/p>\n\n\n\n

Photo credit: G. Keith Douce, University of Georgia<\/p>\n\n\n\n

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Lantana Lace Bug<\/h3>\n\n\n\n

Teleonemia scrupulosa <\/em>St\u00e5l<\/strong><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia<\/p>\n\n\n\n

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Flatheaded Apple Borer<\/h3>\n\n\n\n

Chrysobothris femorata<\/em> (Olivier)<\/strong><\/p>\n\n\n\n

Photo credit: Whitney Cranshaw, Colorado State University.<\/p>\n\n\n\n

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Whiteflies<\/h3>\n\n\n\n

Bemisia tabaci<\/em> (Gennadius)<\/strong><\/p>\n\n\n\n

Photo credit: Scott Bauer, USDA Agricultural Research Service, Bugwood.org<\/p>\n\n\n\n

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Dogwood Borer<\/h3>\n\n\n\n

Synanthedon scitula<\/em> (Harris)<\/strong><\/p>\n\n\n\n

Photo credit: NY State Ag Experiment Station.<\/p>\n\n\n\n

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Wax Scale<\/h3>\n\n\n\n

Ceroplastes <\/em>spp.<\/strong><\/p>\n\n\n\n

Photo credit: Joseph LaForest, University of Georgia, Bugwood.org.<\/p>\n\n\n\n

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Juniper Scale<\/h3>\n\n\n\n

Carulaspic juniperi<\/em> <\/strong><\/p>\n\n\n\n

Photo credit: Lorraine Graney, Bartlett Tree Experts, Bugwood.org<\/p>\n\n\n\n

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Asian Longhorned Beetle<\/h3>\n\n\n\n

Anoplophora glabripennis<\/em><\/strong><\/p>\n\n\n\n

Photo credit: Kenneth R. Law, USDA APHIS PPQ, Bugwood.org<\/p>\n\n\n\n

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Bristly Roseslug Sawfly<\/h3>\n\n\n\n

Cladius difformis <\/strong><\/em><\/p>\n\n\n\n

Photo Credit:  Whitney Cranshaw, Colorado State University, Bugwood.org<\/p>\n\n\n\n

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Magnolia Scale<\/h3>\n\n\n\n

Neolecanium cornuparvum <\/em>(Thro)<\/strong><\/p>\n\n\n\n

Photo Credit: Eric R. Day, Virginia Polytechnic Institute and State University, Bugwood.org<\/p>\n\n\n\n

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Tent Caterpillars<\/h3>\n\n\n\n

Malacosoma <\/em>spp.<\/strong><\/p>\n\n\n\n

Eastern tent caterpillar larva. Photo by David Cappaert, Bugwood.org<\/a>.<\/p>\n\n\n\n

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European Hornet<\/h3>\n\n\n\n

Vespa crabro<\/strong><\/em><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia<\/p>\n\n\n\n

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False oleander scale <\/h3>\n\n\n\n

Pseudaulacaspis<\/em> cockerelli<\/em><\/p>\n\n\n\n

Photo credit: Shimat Joseph, University of Georgia<\/p>\n\n\n\n

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Biology and Management<\/h2>\n\n\n\n
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Effective management of insect pests of ornamentals requires proper diagnosis of the problem. Often we can make reliable diagnoses based on damage that insects cause. The most reliable diagnosis requires identification of the insect or mite itself. Diagnosis based on symptoms can be divided into damage categories as follows:<\/p>\n\n\n\n

    \n
  • tattered leaves or flowers<\/li>\n\n\n\n
  • stippled, bleached or bronzed foliage<\/li>\n\n\n\n
  • die back of plant parts<\/li>\n\n\n\n
  • evidence of insects themselves<\/li>\n<\/ul>\n\n\n\n

    Pests responsible for each category include:<\/p>\n\n\n\n

      \n
    • Tattered leaves or flowers can be caused by grasshoppers, caterpillars, adult or immature beetles.<\/li>\n\n\n\n
    • Stippled, bleached or bronzed foliage may be caused by insects with piercing mouth parts such as lace bugs or plant bugs. Mites or thrips may also cause this type of damage.<\/li>\n\n\n\n
    • Die back of plant parts is often caused by scale insects or by beetles or moth larvae that bore inside the stems.<\/li>\n\n\n\n
    • Evidence of insects themselves may be webs, tents, cases, flocculence (cottony material), frass (fecal material), sawdust.<\/li>\n<\/ul>\n<\/div>\n\n\n\n

      Major Pests of Ornamentals in Landscapes and Nurseries<\/h2>\n\n\n\n
      Pest<\/th>Nursery<\/th>Landscape<\/th><\/tr><\/thead>
      Granulate ambrosia beetle<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Brown marmorated stink bug<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Japanese maple scale<\/strong><\/td>Yes <\/strong><\/td>–<\/strong><\/td><\/tr>
      Aphids<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Azalea bark scale<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Bagworms<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Japanese beetle<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Grass lace bug<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Thrips<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Tea scale<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Mites of rose rosette virus<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Redheaded flea beetle<\/strong><\/td>Yes<\/strong><\/td>–<\/strong><\/td><\/tr>
      Chilli thrips<\/strong><\/td>Yes<\/strong><\/td>–<\/strong><\/td><\/tr>
      Larger canna leafroller<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Fall webworm<\/strong><\/td>–<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Lantana lace bug<\/strong><\/td>–<\/td>Yes<\/strong><\/td><\/tr>
      Flatheaded apple borer<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Whiteflies<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Dogwood borer<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Wax scale<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Juniper scale<\/strong><\/td>Yes<\/strong><\/td>Yes<\/strong><\/td><\/tr>
      Asian longhorned beetle<\/strong><\/td>–<\/td>Yes<\/strong><\/td><\/tr>
      Bristly roseslug<\/strong> sawfly<\/strong><\/td>–<\/td>Yes<\/strong><\/td><\/tr>
      Magnolia scale<\/strong><\/td>–<\/td>Yes<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n","protected":false},"excerpt":{"rendered":"

      Biology and Management Effective management of insect pests of ornamentals requires proper diagnosis of the problem. Often we can make reliable diagnoses based on damage that insects cause. The most reliable diagnosis requires identification of the insect or mite itself. Diagnosis based on symptoms can be divided into damage categories as follows: Pests responsible for […]<\/p>\n","protected":false},"author":499,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-237","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/pages\/237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/users\/499"}],"replies":[{"embeddable":true,"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/comments?post=237"}],"version-history":[{"count":10,"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/pages\/237\/revisions"}],"predecessor-version":[{"id":1124,"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/pages\/237\/revisions\/1124"}],"wp:attachment":[{"href":"https:\/\/site.caes.uga.edu\/entomologyresearch\/wp-json\/wp\/v2\/media?parent=237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}