DOCSLIB.ORG

Biological Control of Knotweeds

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Biological Control of Knotweeds United States Department of Agriculture TECHNOLOGY TRANSFER Biological Control BIOLOGY AND BIOLOGICAL CONTROL OF KNOTWEEDS Fritzi S. Grevstad, Jennifer E. Andreas, Robert S. Bourchier, Richard Shaw, Rachel L. Winston, Carol B. Randall, and Richard C. Reardon Forest Health Assessment FHTET-2017-03 nd and Applied Sciences Team 2 Ed., April 2020 The Forest Health Technology Enterprise Team (FHTET) was created in 1995 by the Deputy Chief for State and Private Forestry, USDA, Forest Service, to develop and deliver technologies to protect and improve the health of American forests. FHTET became Forest Health Assessment and Applied Sciences Team (FHAAST) in 2016. This booklet was published by FHAAST as part of the technology transfer series. http://www.fs.fed.us/foresthealth/technology/ b Cover Photos: (a) Knotweed infestation, (b) Aphalara itadori adult, (c) A. c itadori nymph, (d) A. itadori eggs (Credits: Fritzi Grevstad, Oregon State University) a d References to pesticides appear in this publication. These statements do not constitute endorsement or recommendation of them by the U.S. Department of Agriculture, nor do they imply that the uses discussed have been registered. Use of most pesticides is regulated by state and federal laws. Applicable regulations must be obtained from the appropriate regulatory agency prior to their use. CAUTION: Pesticides can be injurious to humans, domestic animals, desirable plants, and fish or other wildlife if they are not handled or applied properly. Use all pesticides selectively and carefully. Follow recommended practices given on the label for the use and disposal of pesticides and pesticide containers. The use of trade, firm, or corporation names in this publication is for the information and convenience of the reader. Such use does not constitute an official endorsement or approval by the U.S. Department of Agriculture or the Forest Service of any product or service to the exclusion of others that may be suitable. In accordance with Federal civil rights law and U.S. Department of Agriculture (USDA) civil rights regulations and policies, the USDA, its Agencies, offices, and employees, and institutions participating in or administering USDA programs are prohibited from discriminating based on race, color, national origin, religion, sex, gender identity (including gender expression), sexual orientation, disability, age, marital status, family/parental status, income derived from a public assistance program, political beliefs, or reprisal or retaliation for prior civil rights activity, in any program or activity conducted or funded by USDA (not all bases apply to all programs). Remedies and complaint filing deadlines vary by program or incident. Persons with disabilities who require alternative means of communication for program information (e.g., Braille, large print, audiotape, American Sign Language, etc.) should contact the responsible Agency or USDA’s TARGET Center at (202) 720-2600 (voice and TTY) or contact USDA through the Federal Relay Service at (800) 877-8339. Additionally, program information may be made available in languages other than English. To file a program discrimination complaint, complete the USDA Program Discrimination Complaint Form, AD-3027, found online at http://www.ascr.usda.gov/complaint_filing_cust.html and at any USDA office or write a letter addressed to USDA and provide in the letter all of the information requested in the form. To request a copy of the complaint form, call (866) 632-9992. Submit your completed form or letter to USDA by: (1) mail: U.S. Department of Agriculture, Office of the Assistant Secretary for Civil Rights, 1400 Independence Avenue, SW, Washington, D.C. 20250-9410; (2) fax: (202) 690-7442; or (3) email: [email protected]. USDA is an equal opportunity provider, employer, and lender. Federal Recycling Program Printed on Recycled Paper BIOLOGY AND BIOLOGICAL CONTROL OF KNOTWEEDS Fritzi S. Grevstad, Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR; [email protected] Jennifer E. Andreas, Invasive Plant Biocontrol Specialist, Integrated Weed Control Project, Washington State University Extension, Puyallup, WA; [email protected] Robert S. Bourchier, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada; [email protected] Richard Shaw, CABI UK, Surrey, United Kingdom; [email protected] Rachel L. Winston, MIA Consulting, Shelley, ID; [email protected] Carol B. Randall, USDA Forest Service, Forest Health Protection, Coeur d’Alene, ID; [email protected] Richard C. Reardon, USDA Forest Service, FHAAST (retired), Morgantown, WV; [email protected] FHTET-2017-03 2nd Ed., April 2020 Acknowledgments Many agencies and institutions have supported the extensive research leading to the development of the knotweed biocontrol program. These include the US Forest Service-Forest Health Assessment and Applied Sciences Team (FHAAST), the Washington State Department of Agriculture, the Oregon Department of Agriculture, Oregon State University, the University of Washington, Cornell University, CABI Europe (United Kingdom), Agriculture and Agrifood Canada, the British Columbia Ministry of Forests, and the Welsh Development Agency. We appreciate all the photographers who granted permission for the use of photos. We would also like to thank all of the county weed coordinators and land managers that we have worked with through the years for encouraging us to develop our series of “Biology and Biological Control” manuals. Some of the material in this manual was adapted from past manuals in the series, and we wish to acknowledge the authors of the original material. We also extend our gratitude to Richard Reardon (FHAAST) for producing this guide. The layout of this publication was designed by Rachel L. Winston, MIA Consulting. How to cite this publication: Grevstad, F.S., J.E. Andreas, R.S. Bourchier, R. Shaw, R.L. Winston, C.B. Randall, and R.C. Reardon. 2020. Biology and Biological Control of Knotweeds. USDA Forest Service, Forest Health Assessment and Applied Sciences Team, Morgantown, West Virginia. FHTET-2017-03, 2nd Ed. This publication is available online at: https://www.fs.fed.us/foresthealth/technology/pdfs/FHTET-2017-03_Biocontrol_Knotweeds.pdf For additional copies of this publication, contact: Denise Binion FHAAST, USDA Forest Service, 180 Canfield Street, Morgantown, WV 26505; 304.285.1552; [email protected] Carol Bell Randall USDA Forest Service, Forest Health Protection, 2502 E. Sherman Ave, Coeur d’Alene, ID 83814 208.769.3051; [email protected] Biology and Biological Control of Knotweeds Contents C HAPTER 1: INTRODUCTION ..........................................................................................................1 Overview .............................................................................................................................................1 Responding to the Threat of Knotweeds ...........................................................................................2 Prevention and Preparedness.................................................................................................................... 3 Eradication................................................................................................................................................ 3 Containment ............................................................................................................................................. 3 Asset-Based Protection ............................................................................................................................. 3 Monitoring, Evaluation, and Reporting .................................................................................................. 3 Research and Development ...................................................................................................................... 3 The Invasion Curve ............................................................................................................................4 Management of Knotweed Infestations.............................................................................................5 Classical Biological Control of Weeds ..............................................................................................6 Code of Best Practices for Classical Biological Control of Weeds ...................................................7 Biological Control of Knotweeds ......................................................................................................8 Is Biological Control of Knotweeds Right for You? ..........................................................................8 About This Manual ..........................................................................................................................10 C HAPTER 2: GETTING TO KNOW KNOTWEEDS ...................................................................... 13 Taxonomy and Related Species ........................................................................................................13 Classification ....................................................................................................................................14 Synonyms .........................................................................................................................................14 Description .......................................................................................................................................14
Load more

Recommended publications
  • Japanese Knotweed Fallopia Japonica (Houtt.) R. Decr. Or Polygonum Cuspidatum Sieb
    Japanese knotweed Fallopia japonica (Houtt.) R. Decr. or Polygonum cuspidatum Sieb. & Zucc. Giant knotweed Fallopia sachalinensis (F. Schmidt ex Maxim.) R. Decr. or Polygonum sachalinense F. Schmidt ex Maxim. Bohemian knotweed Fallopia × bohemica (Chrtek & Chrtková) J. P. Bailey or Polygonum ×bohemicum (J. Chrtek & Chrtkovß) Zika & Jacobson [cuspidatum ×sachalinense] Family: Polygonaceae Synonyms for Fallopia japonica: Pleuropterus cuspidatus (Sieb. & Zucc.) Moldenke, P. zuccarinii (Small) Small, Polygonum cuspidatum Sieb. & Zucc. var. compactum (Hook. f.) Bailey, P. zuccarinii Small, Reynoutria japonica Houtt. Other common names: Japanese bamboo, fleeceflower, Mexican bamboo Synonyms for Fallopia sachalinensis: Reynoutria sachalinensis (F. Schmidt ex Maxim.) Nakai, Tiniaria sachalinensis (F. Schmidt) Janchen Other common names: none Synonyms for Fallopia x bohemica: none Other common names: none Invasiveness Rank: 87 The invasiveness rank is calculated based on a species’ ecological impacts, biological attributes, distribution, and response to control measures. The ranks are scaled from 0 to 100, with 0 representing a plant that poses no threat to native ecosystems and 100 representing a plant that poses a major threat to native ecosystems. Description Japanese knotweed is a perennial plant that grows from long, creeping rhizomes. Rhizomes are thick, extensive, and 5 to 6 meters long. They store large quantities of carbohydrates. Stems are stout, hollow reddish-brown, swollen at the nodes, and 1 ¼ to 2 ¾ meters tall. Twigs often zigzag slightly from node to node. Leaves are alternate, 5 to 15 cm long, and broadly ovate with more or less truncate bases and acuminate tips. They have short petioles. Plants are dioecious, with male and female flowers on separate plants. Inflorescences are many-flowered, branched, open, and lax.
    [Show full text]
  • Chorizanthe Membranacea - New Crop Summary & Recommendations
    Chorizanthe membranacea - New Crop Summary & Recommendations By Greg Matthews 2012 Series: New Floricultural Crops: Formulation of Production Schedules for Wild, Non- domesticated Species Part of the requirements for Horticultural Science 5051: Plant Production II University of Minnesota New Crops Paper Hort 5051 Greg Matthews Taxonomy Chorizanthe membranacea Benth. Is commonly referred to as Pink Spineflower. It is in the Polygonaceae (Buckwheat) family. Another name for C. membranacea is Erigonella membranacea. Geographic Distribution It is native to North America. It is found in the states of Oregon and California in the United States. It is commonly found in the coast ranges of southwest Oregon and California and on the western foothills of the Sierra Nevada southward to the Transverse Ranges and the Tehachapi Mountains of Ventura and Kern counties in California. It is generally found in 40-44 degrees north Latitude at 0-4500 ft. altitude. It is not invasive and tends to grow in isolation. Native Habitat It is a desert plant that grown in gravelly or rocky flats and slopes, mixed grasslands and chaparral communities. It grows in isolation in most cases. Taxonomic Description C. membranacea is an annual plant that has a slender stem with simple leaves on the lower one-third and once to thrice dichotomous above. The Branches closely ascending; leaves linear and acute 2-3 cm. Total plant height is 2-3 ft. The leaves are crowded at the base of the plant and more scattered above. The flowers are 2-3 per cluster with usually only one developing fruit. The sepals are spatulate, wooly and bright red.
    [Show full text]
  • Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi
    The University of Southern Mississippi The Aquila Digital Community Honors Theses Honors College Spring 5-2016 Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi Hanna M. Miller University of Southern Mississippi Follow this and additional works at: https://aquila.usm.edu/honors_theses Part of the Biodiversity Commons, and the Botany Commons Recommended Citation Miller, Hanna M., "Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi" (2016). Honors Theses. 389. https://aquila.usm.edu/honors_theses/389 This Honors College Thesis is brought to you for free and open access by the Honors College at The Aquila Digital Community. It has been accepted for inclusion in Honors Theses by an authorized administrator of The Aquila Digital Community. For more information, please contact [email protected]. The University of Southern Mississippi Vascular Flora of the Possum Walk Trail at the Infinity Science Center, Hancock County, Mississippi by Hanna Miller A Thesis Submitted to the Honors College of The University of Southern Mississippi in Partial Fulfillment of the Requirement for the Degree of Bachelor of Science in the Department of Biological Sciences May 2016 ii Approved by _________________________________ Mac H. Alford, Ph.D., Thesis Adviser Professor of Biological Sciences _________________________________ Shiao Y. Wang, Ph.D., Chair Department of Biological Sciences _________________________________ Ellen Weinauer, Ph.D., Dean Honors College iii Abstract The North American Coastal Plain contains some of the highest plant diversity in the temperate world. However, most of the region has remained unstudied, resulting in a lack of knowledge about the unique plant communities present there.
    [Show full text]
  • Asclepias Syriaca L.) After a Single Herbicide Treatment in Natural Open Sand Grasslands László Bakacsy* & István Bagi
    www.nature.com/scientificreports OPEN Survival and regeneration ability of clonal common milkweed (Asclepias syriaca L.) after a single herbicide treatment in natural open sand grasslands László Bakacsy* & István Bagi Invasive species are a major threat to biodiversity, human health, and economies worldwide. Clonal growth is a common ability of most invasive plants. The clonal common milkweed Asclepias syriaca L. is the most widespread invasive species in Pannonic sand grasslands. Despite of being an invader in disturbed semi-natural vegetation, this plant prefers agricultural felds or plantations. Herbicide treatment could be one of the most cost-efective and efcient methods for controlling the extended stands of milkweed in both agricultural and protected areas. The invasion of milkweed stand was monitored from 2011 to 2017 in a strictly protected UNESCO biosphere reserve in Hungary, and a single herbicide treatment was applied in May 2014. This single treatment was successful only in a short-term but not in a long-term period, as the number of milkweed shoots decreased following herbicide treatment. The herbicide translocation by rhizomatic roots induced the damage of dormant bud banks. The surviving buds developing shoots, growth of the milkweed stand showed a slow regeneration for a longer-term period. We concluded that the successful control of milkweed after herbicide treatment depends on repeated management of treated areas to suppress further spreading during subsequent seasons. Currently, invasive species are a major threat to biodiversity, human health, and economies 1–4. It has been esti- mated that the fght against invasive species and the damage caused by them in European Union accounts for a minimum of 9.6–12.7 billion euros annually, and this amount is expected to rise to 20 billion euros annually1,5–7.
    [Show full text]
  • December 2012 Number 1
    Calochortiana December 2012 Number 1 December 2012 Number 1 CONTENTS Proceedings of the Fifth South- western Rare and Endangered Plant Conference Calochortiana, a new publication of the Utah Native Plant Society . 3 The Fifth Southwestern Rare and En- dangered Plant Conference, Salt Lake City, Utah, March 2009 . 3 Abstracts of presentations and posters not submitted for the proceedings . 4 Southwestern cienegas: Rare habitats for endangered wetland plants. Robert Sivinski . 17 A new look at ranking plant rarity for conservation purposes, with an em- phasis on the flora of the American Southwest. John R. Spence . 25 The contribution of Cedar Breaks Na- tional Monument to the conservation of vascular plant diversity in Utah. Walter Fertig and Douglas N. Rey- nolds . 35 Studying the seed bank dynamics of rare plants. Susan Meyer . 46 East meets west: Rare desert Alliums in Arizona. John L. Anderson . 56 Calochortus nuttallii (Sego lily), Spatial patterns of endemic plant spe- state flower of Utah. By Kaye cies of the Colorado Plateau. Crystal Thorne. Krause . 63 Continued on page 2 Copyright 2012 Utah Native Plant Society. All Rights Reserved. Utah Native Plant Society Utah Native Plant Society, PO Box 520041, Salt Lake Copyright 2012 Utah Native Plant Society. All Rights City, Utah, 84152-0041. www.unps.org Reserved. Calochortiana is a publication of the Utah Native Plant Society, a 501(c)(3) not-for-profit organi- Editor: Walter Fertig ([email protected]), zation dedicated to conserving and promoting steward- Editorial Committee: Walter Fertig, Mindy Wheeler, ship of our native plants. Leila Shultz, and Susan Meyer CONTENTS, continued Biogeography of rare plants of the Ash Meadows National Wildlife Refuge, Nevada.
    [Show full text]
  • Field Release of the Insects Calophya Latiforceps
    United States Department of Field Release of the Insects Agriculture Calophya latiforceps Marketing and Regulatory (Hemiptera: Calophyidae) and Programs Pseudophilothrips ichini Animal and Plant Health Inspection (Thysanoptera: Service Phlaeothripidae) for Classical Biological Control of Brazilian Peppertree in the Contiguous United States Environmental Assessment, May 2019 Field Release of the Insects Calophya latiforceps (Hemiptera: Calophyidae) and Pseudophilothrips ichini (Thysanoptera: Phlaeothripidae) for Classical Biological Control of Brazilian Peppertree in the Contiguous United States Environmental Assessment, May 2019 Agency Contact: Colin D. Stewart, Assistant Director Pests, Pathogens, and Biocontrol Permits Plant Protection and Quarantine Animal and Plant Health Inspection Service U.S. Department of Agriculture 4700 River Rd., Unit 133 Riverdale, MD 20737 Non-Discrimination Policy The U.S. Department of Agriculture (USDA) prohibits discrimination against its customers, employees, and applicants for employment on the bases of race, color, national origin, age, disability, sex, gender identity, religion, reprisal, and where applicable, political beliefs, marital status, familial or parental status, sexual orientation, or all or part of an individual's income is derived from any public assistance program, or protected genetic information in employment or in any program or activity conducted or funded by the Department. (Not all prohibited bases will apply to all programs and/or employment activities.) To File an Employment Complaint If you wish to file an employment complaint, you must contact your agency's EEO Counselor (PDF) within 45 days of the date of the alleged discriminatory act, event, or in the case of a personnel action. Additional information can be found online at http://www.ascr.usda.gov/complaint_filing_file.html.
    [Show full text]
  • The Vascular Flora of the Upper Santa Ana River Watershed, San Bernardino Mountains, California
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/281748553 THE VASCULAR FLORA OF THE UPPER SANTA ANA RIVER WATERSHED, SAN BERNARDINO MOUNTAINS, CALIFORNIA Article · January 2013 CITATIONS READS 0 28 6 authors, including: Naomi S. Fraga Thomas Stoughton Rancho Santa Ana B… Plymouth State Univ… 8 PUBLICATIONS 14 3 PUBLICATIONS 0 CITATIONS CITATIONS SEE PROFILE SEE PROFILE Available from: Thomas Stoughton Retrieved on: 24 November 2016 Crossosoma 37(1&2), 2011 9 THE VASCULAR FLORA OF THE UPPER SANTA ANA RIVER WATERSHED, SAN BERNARDINO MOUNTAINS, CALIFORNIA Naomi S. Fraga, LeRoy Gross, Duncan Bell, Orlando Mistretta, Justin Wood1, and Tommy Stoughton Rancho Santa Ana Botanic Garden 1500 North College Avenue Claremont, California 91711 1Aspen Environmental Group, 201 North First Avenue, Suite 102, Upland, California 91786 [email protected] All Photos by Naomi S. Fraga ABSTRACT: We present an annotated catalogue of the vascular flora of the upper Santa Ana River watershed, in the southern San Bernardino Mountains, in southern California. The catalogue is based on a floristic study, undertaken from 2008 to 2010. Approximately 65 team days were spent in the field and over 5,000 collections were made over the course of the study. The study area is ca. 155 km2 in area (40,000 ac) and ranges in elevation from 1402 m to 3033 m. The study area is botanically diverse with more than 750 taxa documented, including 56 taxa of conservation concern and 81 non-native taxa. Vegetation and habitat types in the area include chaparral, evergreen oak forest and woodland, riparian forest, coniferous forest, montane meadow, and pebble plain habitats.
    [Show full text]
  • Efficacy and Host Specificity Compared Between Two Populations of The
    Biological Control 65 (2013) 53–62 Contents lists available at SciVerse ScienceDirect Biological Control journal homepage: www.elsevier.com/locate/ybcon Efficacy and host specificity compared between two populations of the psyllid Aphalara itadori, candidates for biological control of invasive knotweeds in North America ⇑ Fritzi Grevstad a, , Richard Shaw b, Robert Bourchier c, Paolo Sanguankeo d, Ghislaine Cortat e, Richard C. Reardon f a Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA b CABI, Bakeham Lane, Egham, Surrey TW20 9TY, United Kingdom c Agriculture and AgriFood Canada-Lethbridge Research Centre, Lethbridge, AB, Canada T1J 4B1 d Olympic Natural Resources Center, University of Washington, Forks, WA 98331, USA e CABI, CH 2800 Delemont, Switzerland f USDA Forest Service, Forest Health Technology Enterprise Team, Morgantown, WV 26505, USA highlights graphical abstract " Two populations of the psyllid Aphalara itadori are effective at reducing knotweed growth and biomass. " The two populations differ in their performance among different knotweed species. " Development of A. itadori occurred infrequently on several non-target plant species. " The psyllid exhibited non-preference and an inability to persist on non- target plants. article info abstract Article history: Invasive knotweeds are large perennial herbs in the Polygonaceae in the genus Fallopia that are native to Received 2 February 2012 Asia and invasive in North America. They include Fallopia japonica (Japanese knotweed), F. sachalinensis Accepted 4 January 2013 (giant knotweed), and a hybrid species F. x bohemica (Bohemian knotweed). Widespread throughout Available online 12 January 2013 the continent and difficult to control by mechanical or chemical methods, these plants are good targets for classical biological control.
    [Show full text]
  • Co-Adaptations Between Ceratocystidaceae Ambrosia Fungi and the Mycangia of Their Associated Ambrosia Beetles
    Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2018 Co-adaptations between Ceratocystidaceae ambrosia fungi and the mycangia of their associated ambrosia beetles Chase Gabriel Mayers Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Biodiversity Commons, Biology Commons, Developmental Biology Commons, and the Evolution Commons Recommended Citation Mayers, Chase Gabriel, "Co-adaptations between Ceratocystidaceae ambrosia fungi and the mycangia of their associated ambrosia beetles" (2018). Graduate Theses and Dissertations. 16731. https://lib.dr.iastate.edu/etd/16731 This Dissertation is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. Co-adaptations between Ceratocystidaceae ambrosia fungi and the mycangia of their associated ambrosia beetles by Chase Gabriel Mayers A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Microbiology Program of Study Committee: Thomas C. Harrington, Major Professor Mark L. Gleason Larry J. Halverson Dennis V. Lavrov John D. Nason The student author, whose presentation of the scholarship herein was approved by the program of study committee, is solely responsible for the content of this dissertation. The Graduate College will ensure this dissertation is globally accessible and will not permit alterations after a degree is conferred. Iowa State University Ames, Iowa 2018 Copyright © Chase Gabriel Mayers, 2018.
    [Show full text]
  • SPECIES of PHYTOPHAGOUS INSECTS ASSOCIATED with STRAWBERRIES in LATVIA Valentîna Petrova, Lîga Jankevica, and Ineta Samsone
    PROCEEDINGS OF THE LATVIAN ACADEMY OF SCIENCES. Section B, Vol. 67 (2013), No. 2 (683), pp. 124–129. DOI: 10.2478/prolas-2013-0019 SPECIES OF PHYTOPHAGOUS INSECTS ASSOCIATED WITH STRAWBERRIES IN LATVIA Valentîna Petrova, Lîga Jankevica, and Ineta Samsone Institute of Biology, University of Latvia, Miera ielâ 3, Salaspils, LV-2169, LATVIA [email protected] Communicated by Viesturs Melecis The aim of the present study was to describe the phytophagous insect fauna of strawberries in Latvia. This study was carried out in 2000–2004 on strawberry plantations in Tukums, Rîga, Do- bele, and Limbaþi districts. Insects were collected from strawberry fields by pitfall trapping, sweep netting and leaf sampling methods. A total of 137 insect species belonging to seven orders and 41 families were identified to species. Of the phytophagous insects, the order Orthoptera was represented by one species, other orders by a larger number of species: Hymenoptera (3), Dip- tera (16), Lepidoptera (20), Thysanoptera (21), Hemiptera (39), and Coleoptera (37). Of the re- corded insects, 48 species have a status of general strawberry pests. Key words: Fragaria × ananassa, strawberry pests, insect diversity. INTRODUCTION planted in rows with 30-cm distance between plants and 100-cm distance between rows. In the period from June 1 to Strawberries are one of the commercially important crop September 30 in 2000–2004, random sweep netting plants in Latvia. Harmful phytophagous insect species on (monthly) and leaf sampling (twice a month) were performed strawberry have been studied during the period between for general collection of homopterans, thysanopterans, 1928 and 1989. Thirty-four phytophagous insect species lepidopterans and hemipterans.
    [Show full text]
  • Identification of Plant DNA in Adults of the Phytoplasma Vector Cacopsylla
    insects Article Identification of Plant DNA in Adults of the Phytoplasma Vector Cacopsylla picta Helps Understanding Its Feeding Behavior Dana Barthel 1,*, Hannes Schuler 2,3 , Jonas Galli 4, Luigimaria Borruso 2 , Jacob Geier 5, Katrin Heer 6 , Daniel Burckhardt 7 and Katrin Janik 1,* 1 Laimburg Research Centre, Laimburg 6, Pfatten (Vadena), IT-39040 Auer (Ora), Italy 2 Faculty of Science and Technology, Free University of Bozen-Bolzano, IT-39100 Bozen (Bolzano), Italy; [email protected] (H.S.); [email protected] (L.B.) 3 Competence Centre Plant Health, Free University of Bozen-Bolzano, IT-39100 Bozen (Bolzano), Italy 4 Department of Forest and Soil Sciences, BOKU, University of Natural Resources and Life Sciences Vienna, A-1190 Vienna, Austria; [email protected] 5 Department of Botany, Leopold-Franzens-Universität Innsbruck, Sternwartestraße 15, A-6020 Innsbruck, Austria; [email protected] 6 Faculty of Biology—Conservation Biology, Philipps Universität Marburg, Karl-von-Frisch-Straße 8, D-35043 Marburg, Germany; [email protected] 7 Naturhistorisches Museum, Augustinergasse 2, CH-4001 Basel, Switzerland; [email protected] * Correspondence: [email protected] (D.B.); [email protected] (K.J.) Received: 10 November 2020; Accepted: 24 November 2020; Published: 26 November 2020 Simple Summary: Cacopsylla picta is an insect vector of apple proliferation phytoplasma, the causative bacterial agent of apple proliferation disease. In this study, we provide an answer to the open question of whether adult Cacopsylla picta feed from other plants than their known host, the apple plant. We collected Cacopsylla picta specimens from apple trees and analyzed the composition of plant DNA ingested by these insects.
    [Show full text]
  • Vascular Plant Species with Documented Or Recorded Occurrence in Placer County
    A PPENDIX II Vascular Plant Species with Documented or Reported Occurrence in Placer County APPENDIX II. Vascular Plant Species with Documented or Reported Occurrence in Placer County Family Scientific Name Common Name FERN AND FERN ALLIES Azollaceae Mosquito fern family Azolla filiculoides Pacific mosquito fern Dennstaedtiaceae Bracken family Pteridium aquilinum var.pubescens Bracken fern Dryopteridaceae Wood fern family Athyrium alpestre var. americanum Alpine lady fern Athyrium filix-femina var. cyclosorum Lady fern Cystopteris fragilis Fragile fern Polystichum imbricans ssp. curtum Cliff sword fern Polystichum imbricans ssp. imbricans Imbricate sword fern Polystichum kruckebergii Kruckeberg’s hollyfern Polystichum lonchitis Northern hollyfern Polystichum munitum Sword fern Equisetaceae Horsetail family Equisetum arvense Common horsetail Equisetum hyemale ssp. affine Scouring rush Equisetum laevigatum Smooth horsetail Isoetaceae Quillwort family Isoetes bolanderi Bolander’s quillwort Isoetes howellii Howell’s quillwort Isoetes orcuttii Orcutt’s quillwort Lycopodiaceae Club-moss family Lycopodiella inundata Bog club-moss Marsileaceae Marsilea family Marsilea vestita ssp. vestita Water clover Pilularia americana American pillwort Ophioglossaceae Adder’s-tongue family Botrychium multifidum Leathery grapefern Polypodiaceae Polypody family Polypodium hesperium Western polypody Pteridaceae Brake family Adiantum aleuticum Five-finger maidenhair Adiantum jordanii Common maidenhair fern Aspidotis densa Indian’s dream Cheilanthes cooperae Cooper’s
    [Show full text]