Feasibility of Biocontrol of Lagarosiphon Major in New Zealand
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Pond Plants PAGE 1
Pond Plants PAGE 1 Please check for seasonality and availability by giving us a call, e-mailing or visiting the Nursery. Ponds create peaceful and relaxing environments that help cool the air on a hot summer’s day. A place to relax, be inspired, or to entertain family and friends. A range of plants will give you the right balance for crystal clear water, creating a habitat for a variety of creatures such as fish, frogs and even dragonflies. Your own mini ecosystem in the backyard. Water gardens can be large or small. They can be a real feature in a beautiful glazed pot, on a balcony or a versatile way of bringing inspiration and tranquility into the renter’s garden. No need to weed, mulch or compost. Apart from some seasonal maintenance and the occasional water top up, all you need to do is sit back, relax, and enjoy the peace of your own backyard water feature. N - Denotes Native Plant E - Denotes Evergreen D - Denotes Deciduous SD - Denotes Semi Deciduous Waterlilies nymphaea - Hardy – not available in winter Prefers to grow in 45cm of water or up to 1.8m deep. Will tolerate some shade for part of the day, but requires 5 hours of sun for best flowering results. Comes in apricot, pink, red, white and yellow. Dies down in winter. Lotus – Nelumbo nucifera (N) – pink - available from October to March Submerged Aquatic plants Aponogeton distachyos - Water Hawthorn – avail winter An attractive plant with white perfumed flowers and dark green strap-like floating leaves. It loves the cold & is good for winter coverage. -
Aponogeton Pollen from the Cretaceous and Paleogene of North America and West Greenland: Implications for the Origin and Palaeobiogeography of the Genus☆
Review of Palaeobotany and Palynology 200 (2014) 161–187 Contents lists available at ScienceDirect Review of Palaeobotany and Palynology journal homepage: www.elsevier.com/locate/revpalbo Research paper Aponogeton pollen from the Cretaceous and Paleogene of North America and West Greenland: Implications for the origin and palaeobiogeography of the genus☆ Friðgeir Grímsson a,⁎, Reinhard Zetter a, Heidemarie Halbritter b, Guido W. Grimm c a University of Vienna, Department of Palaeontology, Althanstraße 14 (UZA II), Vienna, Austria b University of Vienna, Department of Structural and Functional Botany, Rennweg 14, Vienna, Austria c Swedish Museum of Natural History, Department of Palaeobiology, Box 50007, 10405 Stockholm, Sweden article info abstract Article history: The fossil record of Aponogeton (Aponogetonaceae) is scarce and the few reported macrofossil findings are in Received 15 January 2013 need of taxonomic revision. Aponogeton pollen is highly diagnostic and when studied with light microscopy Received in revised form 4 September 2013 (LM) and scanning electron microscopy (SEM) it cannot be confused with any other pollen types. The fossil Accepted 22 September 2013 Aponogeton pollen described here represent the first reliable Cretaceous and Eocene records of this genus world- Available online 3 October 2013 wide. Today, Aponogeton is confined to the tropics and subtropics of the Old World, but the new fossil records show that during the late Cretaceous and early Cenozoic it was thriving in North America and Greenland. The Keywords: Alismatales late Cretaceous pollen record provides important data for future phylogenetic and phylogeographic studies Aponogetonaceae focusing on basal monocots, especially the Alismatales. The Eocene pollen morphotypes from North America aquatic plant and Greenland differ in morphology from each other and also from the older Late Cretaceous North American early angiosperm pollen morphotype, indicating evolutionary trends and diversification within the genus over that time period. -
Unwise Plant Choices
Don’t Be Fooled by Unwise Water-Wise Plant Choices California’s drought is popularizing low-water landscaping: lawns are coming out, xeriscaping is going in. Fortunately, water agencies, nurseries, and garden media are all promoting drought-tolerant plant lists to guide purchasing decisions and reduce water usage. Unfortunately, in this rush for water conservation, invasive plants are creeping onto some of these lists! Maybe you’ve already noticed… There is little surprise that many invasive plants are drought-resistant. By definition, invasive plants can spread into new regions and take over without extra fertilizers or irrigation. Water-wise lists that include drought-tolerant plants are missing the point, however. Why? An invasive plants’ damaging impacts are numerous. For example, in Southern California green fountain grass (Pennisetum setaceum) plants do not provide habitat or forage for wildlife and add considerable fuel-load to wildfires. Other plants can alter soil composition, influence erosion, or even affect our waterways. Giant reed (Arundo donax), was previously a common ornamental that now grows densely in stream banks, increasing flood impacts and clogging water passages. Lastly, the use of herbicides on invasive plants, while in many cases the best available option, poses risk to water quality in our streams, aquifers and oceans. With this in mind, gardeners and landscape professionals can be truly “water-wise” by: 1. Insisting on non-invasive plants when designing drought-tolerant landscapes. Plants that we’ve seen (in order of prevalence) on drought- tolerant plant lists include: Mexican feathergrass (Nassella or Stipa tenuissima) – emerging invasive, Green fountain grass (Pennisetum setaceum), Highway iceplant, (Carpobrotus edulis), Pampas grass (Cortaderia selloana), Capeweed (Arctotheca calendula) and Big leaf periwinkle (Vinca major). -
Lake Tahoe Region Aquatic Invasive Species Management Plan CALIFORNIA ‐ NEVADA
Lake Tahoe Region Aquatic Invasive Species Management Plan CALIFORNIA ‐ NEVADA DRAFT September 2009 Pending approval by the Aquatic Nuisance Species Task Force This Aquatic Invasive Species Management Plan is part of a multi-stakeholder collaborative effort to minimize the deleterious effects of nuisance and invasive aquatic species in the Lake Tahoe Region. This specific product is authorized pursuant to Section 108 of Division C of the Consolidated Appropriations Act of 2005, Public Law 108-447 and an interagency agreement between the U.S. Army Corps of Engineers and the California Tahoe Conservancy. This product was prepared by: Suggested citation: USACE. 2009. Lake Tahoe Region Aquatic Invasive Species Management Plan, California - Nevada. 84 pp + Appendices. Cover photo credits: Lake Tahoe shoreline, Toni Pennington (Tetra Tech, Inc.); curlyleaf pondweed, Steve Wells (PSU); Asian clams, Brant Allen (UCD); bullfrog (USGS), zebra mussels (USGS); bluegill and largemouth bass (USACE) ii i Table of Contents Acknowledgements................................................................................................................ iii Acronyms ............................................................................................................................... iv Glossary.................................................................................................................................. vi Executive Summary ........................................................................................................... -
Microsoft Outlook
Joey Steil From: Leslie Jordan <[email protected]> Sent: Tuesday, September 25, 2018 1:13 PM To: Angela Ruberto Subject: Potential Environmental Beneficial Users of Surface Water in Your GSA Attachments: Paso Basin - County of San Luis Obispo Groundwater Sustainabilit_detail.xls; Field_Descriptions.xlsx; Freshwater_Species_Data_Sources.xls; FW_Paper_PLOSONE.pdf; FW_Paper_PLOSONE_S1.pdf; FW_Paper_PLOSONE_S2.pdf; FW_Paper_PLOSONE_S3.pdf; FW_Paper_PLOSONE_S4.pdf CALIFORNIA WATER | GROUNDWATER To: GSAs We write to provide a starting point for addressing environmental beneficial users of surface water, as required under the Sustainable Groundwater Management Act (SGMA). SGMA seeks to achieve sustainability, which is defined as the absence of several undesirable results, including “depletions of interconnected surface water that have significant and unreasonable adverse impacts on beneficial users of surface water” (Water Code §10721). The Nature Conservancy (TNC) is a science-based, nonprofit organization with a mission to conserve the lands and waters on which all life depends. Like humans, plants and animals often rely on groundwater for survival, which is why TNC helped develop, and is now helping to implement, SGMA. Earlier this year, we launched the Groundwater Resource Hub, which is an online resource intended to help make it easier and cheaper to address environmental requirements under SGMA. As a first step in addressing when depletions might have an adverse impact, The Nature Conservancy recommends identifying the beneficial users of surface water, which include environmental users. This is a critical step, as it is impossible to define “significant and unreasonable adverse impacts” without knowing what is being impacted. To make this easy, we are providing this letter and the accompanying documents as the best available science on the freshwater species within the boundary of your groundwater sustainability agency (GSA). -
The Herbivorous Insect Fauna of a Submersed Weed, Hydrilla Verticillata (Alismatales: Hydrocharitaceae)
SESSION 5 Weeds of Aquatic Systems and Wetlands Proceedings of the X International Symposium on Biological Control of Weeds 307 4-14 July 1999, Montana State University, Bozeman, Montana, USA Neal R. Spencer [ed.]. pp. 307-313 (2000) The Herbivorous Insect Fauna of a Submersed Weed, Hydrilla verticillata (Alismatales: Hydrocharitaceae) C. A. BENNETT1 and G. R. BUCKINGHAM2 1 Department of Entomology and Nematology, University of Florida, and 2 USDA-ARS 1,2 Florida Biological Control Laboratory, P.O. Box 147100, Gainesville, Florida 32614-7100, USA Abstract Although relatively few insects have been reported to feed on submersed aquatic plants, field surveys on Hydrilla verticillata (L. F.) Royle for biological control agents have demonstrated that insect herbivores should be expected when surveying submersed aquatic plants in the native ranges. Beetles, or Coleoptera, especially the weevils (Curculionidae), are important herbivores. Weevils attack submersed plant species both when water is present and when water is absent during dry periods which leave the plants exposed. Pupal success appears to be the major determinant of weevil life cycle strategies. Donaciine leaf beetles (Chrysomelidae) attack the roots or crowns of submersed species, but their feeding and damage is difficult to determine. Leaf-mining Hydrellia flies (Diptera: Ephydridae) are diverse and common on submersed species. Other flies, the midges (Chironomidae), are also common on submersed species, but many utilize the plants only for shelter. However, midge larvae ate the apical meristems on the tips of hydrilla stems. Aquatic caterpillars (Lepidoptera: Pyralidae) are the herbivores most eas- ily observed on submersed species because of their large size and conspicuous damage, but their host ranges might be too broad for use as biological control agents. -
Literature Review
Aquatic and riparian plant management: controls for vegetation in watercourses Literature review Project: SC120008/R4 The Environment Agency is the leading public body protecting and improving the environment in England. It’s our job to make sure that air, land and water are looked after by everyone in today’s society, so that tomorrow’s generations inherit a cleaner, healthier world. Our work includes tackling flooding and pollution incidents, reducing industry’s impacts on the environment, cleaning up rivers, coastal waters and contaminated land, and improving wildlife habitats. This report is the result of research commissioned by the Environment Agency’s Evidence Directorate and funded by the joint Environment Agency/Defra Flood and Coastal Erosion Risk Management Research and Development Programme. Published by: Author(s): Environment Agency, Horizon House, Deanery Road, Sebastian Bentley, Rachael Brady, Matthew Bristol, BS1 9AH Hemsworth and Laura Thomas www.environment-agency.gov.uk Dissemination Status: ISBN: 978-1-84911-328-1 Publicly available © Environment Agency – July 2014 Keywords: Aquatic vegetation, riparian, management, control, All rights reserved. This document may be reproduced flood risk management, physical, chemical, with prior permission of the Environment Agency. environmental, biological, biosecurity The views and statements expressed in this report are Research Contractor: those of the author alone. The views or statements JBA Consulting, Epsom House, Chase Park, expressed in this publication do not necessarily Redhouse Interchange, South Yorkshire, DN6 7FE represent the views of the Environment Agency and the Tel: 01302 337798 Environment Agency cannot accept any responsibility for such views or statements. Environment Agency’s Project Manager: Lydia Burgess-Gamble, Evidence Directorate Email: [email protected]. -
Evaluation of the Host Range of Hydrellia Lagarosiphon
Host range tests of Hydrellia lagarosiphon a candidate agent for Lagarosiphon major in New Zealand: assessing the risk to non-target species in New Zealand Jan-Robert Baars (University College Dublin), Quentin Paynter (Landcare Research New Zealand) Materials and Methods Selection of test plants A test plant list for New Zealand (henceforth NZ) (Table 1) was compiled using the centrifugal phylogenetic method (Wapshere, 1974) with amendments, as suggested by Briese and Walker (2002) and Briese (2003). Recent development in phylogenetics for the Hydrocharitaceae and its relation to taxonomically similar plant families were obtained by consulting the Angiosperm Phylogeny Website (Stevens, 2001 onwards; Fig. 1). Figure 1 Phylogeny of the Alismatales obtained from the Angiosperm Phylogeny Website: (Stevens, 2001 onwards) The most recent checklist of native NZ plants (De Lange and Rolfe, 2010) was examined to identify the NZ plant species that are most closely-related to lagarosiphon in order to compile a list of native plants for inclusion in host-range testing. Given that the aquatic lifestyle is a highly specialised one, relying totally on taxonomic position without due consideration of habitat has the potential to result in unsuitable test plants being included in a test list. For example, arthropod herbivores that feed on lagarosiphon are adapted to being submerged in freshwater and we can be sure that the marine eelgrass Zostera muelleri (Zosteriaceae) cannot be a suitable host for an insect herbivore because no insects have followed seagrasses into the ocean (Ollerton and McCollin, 1998). Zostera muelleri was, therefore, excluded from host- range testing. Wolffia australiana was also excluded from host-range testing as the tiny (0.3-1 mm long) platelets are far too small to be at risk of supporting the development of a leaf- mining fly. -
A Guide to Freshwater Pest Plants of the Wellington Region REPORT THESE WEEDS – 0800 496 734
A guide to freshwater pest plants of the Wellington region REPORT THESE WEEDS – 0800 496 734 Contact information For more information contact Greater Wellington Regional Council’s Biosecurity team. Phone us: 0800 496 734 Visit our website: www.gw.govt.nz/biosecurity Send us an email: [email protected] The Greater Wellington Regional Council’s Biosecurity Pest plant officers can: • Help you identify pest plants on your property. • Provide advice on different control methods. • Undertake control work in areas outlined in the Regional Pest Management Strategy. Download the Greater Wellington Regional Pest Management Strategy – www.gw.govt.nz/pest-plants-3 Acknowledgements This guide has been jointly funded by the Ministry for Environment Fresh Start for Freshwater Cleanup Fund and the partners in the Wairarapa Moana Wetland project. All photos have been provided by the National Institute of Water and Atmospheric Research (NIWA) unless otherwise stated. Contents Foreword 2 Purpose 3 Understanding aquatic plants 4 Prevent the spread 6 Control options 7 Identifying aquatic weeds 9 Aquatic pest plant identification Canadian pondweed 10 Cape pondweed 12 Curled pondweed 14 Egeria 16 Ferny azolla 18 Hornwort 20 Lagarosiphon 22 Monkey musk 24 Parrot’s feather 26 Swamp lily 28 Water pepper 30 Water plantain 32 Yellow flag iris 34 Report these weeds to us! Alligator weed 37 Californian arrowhead 38 Californian bulrush 39 Delta arrowhead 40 Eelgrass 41 Hawaiian arrowhead 42 Hydrilla 43 Manchurian wild rice 44 Purple loosestrife 45 Salvinia 46 Senegal tea 47 Spartina 48 Water hyacinth 49 1 “The effects of freshwater pest Foreword plants on Maori cultural values” Freshwater pest plants are considered a problem by most people regardless of their cultural beliefs. -
Knowledge Document for Risk Analysis of the Non-Native Brazilian Waterweed (Egeria Densa) in the Netherlands
2014 Knowledge document for risk analysis of the non-native Brazilian waterweed (Egeria densa) in the Netherlands J. Matthews, K.R. Koopman, R. Beringen, B. Odé, R. Pot, G. van der Velde, J.L.C.H. van Valkenburg & R.S.E.W. Leuven Knowledge document for risk analysis of the non-native Brazilian waterweed (Egeria densa) in the Netherlands J. Matthews, K.R. Koopman, R. Beringen, B. Odé, R. Pot, G. van der Velde, J.L.C.H. van Valkenburg & R.S.E.W. Leuven 16 October 2014 Radboud University Nijmegen, Institute for Water and Wetland Research FLORON & Roelf Pot Research and Consultancy Commissioned by Office for Risk Assessment and Research (Invasive Alien Species Team) Netherlands Food and Consumer Product Safety Authority Ministry of Economic Affairs Series of Reports on Environmental Science The series of reports on Environmental Science are edited and published by the Department of Environmental Science, Institute for Water and Wetland Research, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands (tel. secretariat: + 31 (0)24 365 32 81). Reports Environmental Science 468 Title: Knowledge document for risk analysis of the non-native Brazilian waterweed (Egeria densa) in the Netherlands Authors: J. Matthews, K.R. Koopman, R. Beringen, B. Odé, R. Pot, G. van der Velde, J.L.C.H. van Valkenburg & R.S.E.W. Leuven Cover photo: Brazilian waterweed (Egeria densa) at Hoogeveen, the Netherlands (Photo: J. van Valkenburg). Project manager: Dr. R.S.E.W. Leuven, Department of Environmental Science, Institute for Water and Wetland Research, Radboud University Nijmegen, Heyendaalseweg 135, 6525 AJ Nijmegen, the Netherlands, e-mail: [email protected] Project number: RU/FNWI/FEZ 62002158 Client: Netherlands Food and Consumer Product Safety Authority, P.O. -
Vegetation Recovery in Inland Wetlands: an Australian Perspective
Vegetation recovery in inland wetlands: an Australian perspective J. Roberts, M.T. Casanova, K. Morris, P. Papas May 2017 Arthur Rylah Institute for Environmental Research Technical Report Series Number 270 Acknowledgements This project was funded by the Water and Catchments Group (WCG) of the Department of Environment, Land, Water and Planning, Victoria (DELWP). Tamara van Polanen Petel and Janet Holmes (WCG, DELWP), and Freya Thomas and Claire Moxham (Arthur Rylah Institute for Environmental Research, DELWP) are thanked for reviewing the draft and providing valuable feedback. David Meagher (Zymurgy Consulting) is thanked for editing the report. Authors Jane Roberts1, Michelle Casanova2, Kay Morris3 and Phil Papas3 1 Ecological Consultant, PO Box 6191, O’Connor, Australian Capital Territory 2602 2 Charophyte Services, PO Lake Bolac, Victoria 3351 3 Arthur Rylah Institute for Environmental Research, 123 Brown Street, Heidleberg, Victoria 3084 Citation Roberts, J., Casanova, M.T., Morris, K. and Papas, P. (2017). Vegetation recovery in inland wetlands: an Australian perspective. Arthur Rylah Institute for Environmental Research. Technical Report Series No. 270. Department of Environment, Land, Water and Planning, Heidelberg, Victoria. Photo credit Southern Cane Grass Eragrostis infecunda establishing on exposed bed of former Lake Mokoan, at Winton Wetlands in October 2016. (Dylan Osler, via Jane Roberts) © The State of Victoria Department of Environment, Land, Water and Planning, May 2017 This work is licensed under a Creative Commons Attribution 4.0 International licence. You are free to re-use the work under that licence, on the condition that you credit the State of Victoria as author. The licence does not apply to any images, photographs or branding, including the Victorian Coat of Arms, the Victorian Government logo and the Department of Environment, Land, Water and Planning (DELWP) logo and the Arthur Rylah Institute logo. -
Identification, Biology and Management of Elodea Canadensis, Hydrocharitaceae
J. Aquat. Plant Manage. 33: 13-19 Identification, Biology and Management of Elodea canadensis, Hydrocharitaceae KATHLEEN H BOWMER1, S.W.L. JACOBS2 AND G.R. SAINTY3 ABSTRACT plants blocked intakes to hydro-electric generators. It has also been recorded in Australia, where it is, as yet, not natu- Elodea, Egeria, Hydrilla, and Lagarosiphon have been much ralized; and to prevent its spread it has been declared nox- confused in the literature, mainly because of similarities in ious in all States in Australia. Lagarosiphon major is appearance and habitat. As well there has been confusion as distinguished from the other species mentioned here by its to the number of species in Elodea and their correct names. recurved leaves spirally arranged around the stem, rather We provide two keys, the first to help distinguish the genus than in whorls. Elodea from its near relatives, and the second to distinguish the species within Elodea. The distribution of the species of KEY TO GENERA Elodea is described along with their physiology, survival and dispersal. The economic importance and management of 1. Leaves spirally arranged around the stem, the the weed species of Elodea are discussed and recommenda- tips often recurved; petals subequal to sepals, < tions for control are made. 3mm long. Lagarosiphon Key words: Hydrilla, Egeria, Lagarosiphon, taxonomy, herbi- 1* Leaves in whorls of 3-8, the tips usually not cides. recurved; petals subequal to sepals or very much longer, 1-12 mm long. 2. IDENTIFICATION 2. Petals 9-12 mm long, much longer than the sepals; leaves usually in whorls of 4-5 (sometimes Elodea spp., Egeria densa Planch., Hydrilla verticillata (L.f.) 3-8).