Western Striped Cucumber Beetle

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Pest Profile Photo credit: Whitney Cranshaw, Colorado State University, Bugwood.org (Left); Luke Tembrock, USDA APHIS PPQ ITP, Bugwood.org (Right) Common Name: Western Striped Cucumber Beetle Scientific Name: Acalymma trivittatum Order and Family: Coleoptera, Chrysomelidae Size and Appearance: Length (mm) Appearance Egg Oval in shape Yellow to orange in color Laid at the base of host plants Larva/Nymph Off-white to yellow in color 8-13 mm Brown head and legs Adult Bright yellow in color with 3 uniform black stripes across the back Central stripe is divided on either side of the wing cover 8-9 mm Wing covers are also covered in small indentations Pupa (if applicable) White to yellow in color 6 mm Look like soft-bodied adults without wings Pupate in the soil Type of feeder (Chewing, sucking, etc.): Larvae and adults both have chewing mouthparts. Host plant/s: Roots and fruits of cucurbits and leaves, stems, blossoms, and fruit of corn, potatoes, tomatoes, beans, and peach fruits. Description of Damage (larvae and adults): Larvae only cause minor damage by chewing on the roots and sometimes even the rind of young cucumbers and melons. Adults often feed on young, tender plants which can lead to stunting, scarring, malformation or even death of young seedlings. Their feeding also results in holes and chew marks in the leaves as well as leaving pits that reduce marketability of the crop. Adult beetles may also cause indirect damage from vectoring plant pathogens such as cucumber mosaic virus, and Erwinia tracheiphila, the causal agent of bacterial wilt of cucurbits. References: Alston, D. G., & Worwood, D. R. (2012). Utah pests fact sheet: Western striped cucumber beetle, western spotted cucumber beetle (calymma trivittatum and diabrotica undecipunctata undecipunctata) No. ENT-118-08PR). Logan, Utah: Utah State University Extension and Utah Plant Pest Diagnostic Laboratory. Cranshaw, W. (2004). Garden insects of North America: The ultimate guide to backyard bugs Princeton University Press. Natwick, E. T., et al. (2012). UC IPM pest management guidelines: Cucurbits. Retrieved January 24, 2016, from http://www.ipm.ucdavis.edu/PMG/r116300511.html .

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This article was downloaded by: [USDA National Agricultural Library] On: 1 October 2008 Access details: Access Details: [subscription number 790740294] Publisher Taylor & Francis Informa Ltd Registered in England and Wales Registered Number: 1072954 Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH, UK Biocontrol Science and Technology Publication details, including instructions for authors and subscription information: http://www.informaworld.com/smpp/title~content=t713409232 A critical evaluation of host ranges of parasitoids of the subtribe Diabroticina (Coleoptera: Chrysomelidae: Galerucinae: Luperini) using field and laboratory host records Stefan Toepfer a; Guillermo Cabrera Walsh b; Astrid Eben c; Rebeca Alvarez-Zagoya d; Tim Haye a; Feng Zhang a; Ulrich Kuhlmann a a CABI Europe-Switzerland, Delémont, Switzerland b USDA ARS South American Biocontrol Laboratory, Hurlingham, Buenos Aires, Argentina c Departamento de Ecología Funcional, Instituto de Ecología, Xalapa, Veracruz, Mexico d Instituto Politécnico Nacional, CIIDR-IPN, Durango, Mexico Online Publication Date: 01 January 2008 To cite this Article Toepfer, Stefan, Cabrera Walsh, Guillermo, Eben, Astrid, Alvarez-Zagoya, Rebeca, Haye, Tim, Zhang, Feng and Kuhlmann, Ulrich(2008)'A critical evaluation of host ranges of parasitoids of the subtribe Diabroticina (Coleoptera: Chrysomelidae: Galerucinae: Luperini) using field and laboratory host records',Biocontrol Science and Technology,18:5,483 — 504 To link to this Article: DOI: 10.1080/09583150802001742 URL: http://dx.doi.org/10.1080/09583150802001742 PLEASE SCROLL DOWN FOR ARTICLE Full terms and conditions of use: http://www.informaworld.com/terms-and-conditions-of-access.pdf This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, re-distribution, re-selling, loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden.
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