Biological Control Programs for Invasive Plants

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Presentation transcript:

Biological Control Programs for Invasive Plants A Presentation by W.D. McIlveen

Biological Control Review Native 2348 species/subspecies

Biological Control Review Native 2348 species/subspecies Non-native 1664 species

Biological Control Review Native 2348 species/subspecies Non-native 1664 species Others (not assigned not native) 573 species

Biological Control Review SE5 = Very common exotics 156 species

Biological Control Review SE5 = Very common exotics 156 species SE4 - Common exotic 48 species

Biological Control Review Steps to Becoming a Problem Invasive 1. Colonial seeds/plants become established

Biological Control Review Steps to Becoming a Problem Invasive 1. Colonial seeds/plants become established 2. Plants are able to reproduce

Biological Control Review Steps to Becoming a Problem Invasive 1. Colonial seeds/plants become established 2. Plants are able to reproduce 3. Population increases

Biological Control Review Steps to Becoming a Problem Invasive 1. Colonial seeds/plants become established 2. Plants are able to reproduce 3. Population increases 4. Indigenous insects, disease are ineffective in controlling plants

Biological Control Review Steps to Becoming a Problem Invasive 1. Colonial seeds/plants become established 2. Plants are able to reproduce 3. Population increases 4. Indigenous insects, disease are ineffective in controlling plants 5. Populations reach stage where plants are considered to be invasive (ecological problem, economic problem, health issues) based on human value assessments

Biological Control Review Pest Agent Insect or Disease Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review Pest Agent Insect or Disease Native Introduced Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review Pest Agent Insect or Disease Native Introduced Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review Pest Agent Insect or Disease Native Introduced Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review Pest Agent Insect or Disease Native Introduced Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review Pest Agent Insect or Disease Native Introduced Host (Plant) Presumed to be ‘In balance’ Can have severe impact (e.g. Dutch Elm, EAB) Few instances but hard to recognize If suitable, can bring about acceptable balance

Biological Control Review – Canada Thistle Cirsium arvense – Canada Thistle

Biological Control Review – Canada Thistle Excerpt from Canada Thistles Act, 1865

Biological Control Review – Canada Thistle Excerpt from Canada Thistles Act, 1865

Biological Control Review – Canada Thistle Name Agent Release Year Altica carduorum Foliar-feeding beetle 1964 Hadroplontus litura Stem, root crown-feeding weevil 1975 Larinus planus Seed-feeding weevil 1988 adventive Puccinia punctiformis Rust 2002 Rhinocyllus conicus 1979 Terellia ruficauda Seed-feeding fly 1931 adventive Urophora cardui Stem gall-forming fly 1974 Lema cyanella 1993 adventive Cassida rubiginosa 1902 adventive Cleonis pigra Root crown weevil 2003 adventive Dasineura gibsoni Seed hairs midge Vanessa cardui Painted Lady Native Biological control agents for Canada Thistle

Biological Control Review – Canada Thistle Altica carduorum Canada Thistle Fleabeetle

Biological Control Review – Canada Thistle Hadroplontus litura Larinus planus Terellia ruficauda Cassida rubiginosa

Biological Control Review – Canada Thistle Uphora cardui – Thistle Stem Gall

Biological Control Review – Canada Thistle Puccinia puntiformis – Thistle Rust Painted Lady – Native species

Biological Control Review - St. John’s Wort Hypericum perforatum St. John’s Wort or Klamath Weed Designated as noxious weed in 20 countries Invasive and toxic causing photosensitization in cattle

Biological Control Review - St. John’s Wort Chrysolina hypericis Chrysolina quadrigemina All three species were released in Ontario to control St. John’s Wort Aplocera plagiata

Biological Control Review - St. John’s Wort Klamath Beetle - Chrysolina quadrigemina Beetles are prey to Carabid beetles when they enter soil to pupate or as adults

Biological Control Review - St. John’s Wort The fungus Colletotrichum gloeosporioides causes stem lesions on St. John’s Wort Infections caused dieback and mortality of the host plant Disease was considered useful as a biocontrol agent Fungus is spread by Chrysolina Beetles

Biological Control Review - St. John’s Wort Oil from flowers works as a topical treatment for bruises, joint problems, inflammation and/or neurological problems

Biological Control Review - St. John’s Wort Oil from flowers works as a topical treatment for bruises, joint problems, inflammation and/or neurological problems Widly sold as a herbal remedy against mild depression Nicknamed the “Herb of Happiness”

Biological Control Review - St. John’s Wort Because of crop values for medicine, attempts to grow disease resistant St. John’s Wort are underway

Biological Control Review - St. John’s Wort Hypericum frondosum Sunburst St. John’s Wort Hypericum hookerianum Hooker’s St. John’s Wort Horticultural Hypericum species

Biological Control Review - St. John’s Wort Hypericum gentianoides False St. John's-wort or Orange-grass Hypericum sphaerocarpum Round-fruited St. John's-wort Rare species of Hypericum in Ontario

Biological Control Review – Knapweeds Knapweed Species Centaurea benedicta Centaurea callitrapa Centaurea diffusa Centaurea jacea Centaurea nigra Centaurea nigrescens Centaurea paniculata Centaurea scabiosa Centaurea solstitialis Centaurea stoebe Centaurea X moncktonii Centaurea X psammogena Centaurea infestation

Biological Control Review – Knapweeds Species Common Name Year Release Urophora quadrifasciata Seed-head Gall Fly 1970 Urophora affinis 1972 Metzneria paucipunctella Seed-head Moth 1973 Sphenoptera jugoslavica Root Gall Beetle 1976 Agapeta zoegana Root Moth 1982 Pelochrista medulla Pterolonche inspersa 1986 Cyphocleonus achates Root Weevil 1987 Puccinia centaureae Knapweed Rust Disease 1988 Larinus obtusus Seed-head Weevil 1993 Bangastermis fausti 1992 USA only Aceria centaureae Leaf Gall Mite 1993 USA only Isoculus minutus Seed-head Gall Wasp Under evaluation

Biological Control Review – Knapweeds Urophora quadrifasciata Urophora affinis Metzneria paucipunctella

Biological Control Review – Knapweeds Urophora quadrifasciata Urophora affinis Metzneria paucipunctella Sphenoptera jugoslavica Agapeta zoegana Pelochrista medulla

Biological Control Review – Knapweeds Urophora quadrifasciata Urophora affinis Metzneria paucipunctella Sphenoptera jugoslavica Agapeta zoegana Pelochrista medulla Pterolonche inspersa Cyphocleonus achates Puccinia centaureae

Biological Control Review – Knapweeds Centaurea macrocephala Centaurea cyaneus Centaurea montana

Biological Control Review – Purple Loosestrife Purple Loosestrife – Lythrum salicaria Poster plant for invasive species Desirable as nectar plant for Honey Bees and for horticultural purposes

Biological Control Review – Purple Loosestrife Neogalerucella calmariensis Neogalerucella pusilla Hylobius transversovittatus Released in Ontario 1992 Released in Ontario 1992 Released in Ontario 1992

Biological Control Review – Purple Loosestrife Neogalerucella calmariensis Neogalerucella pusilla Hylobius transversovittatus Released in Ontario 1992 Released in Ontario 1992 Released in Ontario 1992 Nanophyes marmoratus Released New York and Minnesota 1994 Adventive to Ontario, 2012

Biological Control Review – Purple Loosestrife Neogalerucella calmariensis Neogalerucella pusilla Hylobius transversovittatus Released in Ontario 1992 Released in Ontario 1992 Released in Ontario 1992 Nanophyes marmoratus Released New York and Minnesota 1994 Adventive to Ontario, 2012 Nanophyes brevis Approved for release but withheld due to a nematode infection

Biological Control Review – Purple Loosestrife Four-lined Plant Bug - Poecilocapsus lineatus

Biological Control Review – Purple Loosestrife Small Engralid – Ectropis crepuscularia Loosestrife Aphid Myzus lythri Aphid from Europe, ca 1930 Other insects feeding on Purple Loosestrife

Biological Control Review – Purple Loosestrife Species at potential risk from Loosestrife Beetles is rare native Winged Loosestrife Lythrum alatum

Biological Control Review - Docks Rumex crispus – Curled Dock

Biological Control Review - Docks Species Action Apion frumentarium Herbivore Apion violaceum Bembecia chrysisiformis Stems/Roots Chamaesphecia doryliformis Gastrophysa viridula Hypera rumicis Lixomorphus ocularis Roots Pegomya solennis Blotch Leaf Miner Ramularia rubella Pathogen Leaves Uromyces rumicis List of biological agents used to control Rumex species

Biological Control Review - Docks Hypera rumicis

Biological Control Review - Docks Ramularia rubella Uromyces rumicis – Dock Rust

Biological Control Review - Docks Apion frumentarium Apion violaceum Lixomorphus ocularis Pegomyia solennis – Dock Leaf Blotch Miner

Biological Control Review Leafy Spurge - Euphorbia esula from Eurasia first reported in North America in 1827 - Leafy spurge is now abundant in western United States and prairie provinces of Canada - Covers 2,000,000 ha in U.S. and 650,000 acres in Manitoba

Biological Control Review Biological control agents……………..

Biological Control Review Sheep and Goats feeding on Leafy Spurge

Biological Control Review Insects introduced to control Leafy Spurge Species Type Year Hyles euphorbia Lepidoptera: Sphingidae 1964 Chamaesphecia empiformis Lepidoptera: Sesiidae 1975 Chamaesphecia tenthrediniformis Oberea erythrocephala Coleoptera: Cerambycidae 1980 Spurgia esulae Diptera: Cecidomyiidae 1985 Aphthona flava Coleoptera: Chrysomelidae Aphthona cyparissiae 1986 Aphthona czwalinae 1987 Aphthona nigriscutis 1989 Lobesia euphorbiana Lepidoptera: 1990 Dasineura sp. nr. capsulae 1991 Aphthona abdominalis 1993 Aphthona lacertosa Chamaesphecia hungarica Chamaesphecia crassicornis 1996 Spurgia capitigena 1998

Biological Control Review Hyles euphorbia, 1964

Biological Control Review Lobesia euphorbiana – Introduced in 1990

Biological Control Review Chamaesphecia empiformis 1975 Chamaesphecia tenthrediniformis 1975 Chamaesphecia hungarica 1993 Chamaesphecia crassicornis 1996

Biological Control Review Aphthona flava 1985 Aphthona cyparissiae 1986 Aphthona czwalinae 1987

Biological Control Review Aphthona flava 1985 Aphthona cyparissiae 1986 Aphthona czwalinae 1987 Aphthona nigriscutis 1989 Aphthona abdominalis 1993 Aphthona lacertosa 1993

Biological Control Review Oberea erythrocephala (Red-headed Stem Borer) 1980

Biological Control Review Dasineura sp. nr. capsulae, 1991

Biological Control Review Spurgia esulae 1985 Spurgia capitigena, 1998

Biological Control Review – Tansy Ragwort Senecio jacobaea - Introduced from Europe about 150 years ago - Extensive stands in BC, Washington but also from Manitoba eastward; also divided west and east distribution in United States

Biological Control Review – Tansy Ragwort Cinnabar Moth Tyria jacobaeae Introduced 1962

Biological Control Review – Tansy Ragwort Botanophila seneciella Ragwort Seed Fly Introduced 1968

Biological Control Review – Tansy Ragwort Black-headed Conch Cochylis atricapitanus Introduced 1990

Biological Control Review – Tansy Ragwort Longitarsus jacobaeae Tansy Ragwort Flea Beetle Introduced 1971 and 2011 Longitarsus flavicornis Tansy Ragwort Flea Beetle Introduced 1971

Biological Control Review – Bull Thistle Bull Thistle Gall Fly Urophora stylata

Biological Control Review – Nodding Thistle Thistle Crown Weevil Trichosirocalus horridus Thistle-head Weevil Rhinocyclus conicus

Biological Control Review – Russian Thistle Host = Salsola tragus Russian Thistle Stem Miner Moth Coleophora parthenica

Thank You