Biological Control of Boneseed. Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during.

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Presentation transcript:

Biological Control of Boneseed

Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during the early 1990s A seed-feeding fly in 1998 Boneseed leafroller in April 2000 Boneseed leaf buckle mite 2008

Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during the early 1990s A seed-feeding fly in 1998 Boneseed leafroller in April 2000 Boneseed leaf buckle mite 2008

Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during the early 1990s A seed-feeding fly in 1998 Boneseed leafroller in April 2000 Boneseed leaf buckle mite 2008

Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during the early 1990s A seed-feeding fly in 1998 Boneseed leafroller in April 2000 Boneseed leaf buckle mite 2008

Boneseed Bio-control Agents Introduced to Australia Chrysanthemoides tip moth in 1989 Three leaf-feeding beetles during the early 1990s A seed-feeding fly in 1998 Boneseed leafroller in April 2000 Boneseed leaf buckle mite 2008

Bio-control Agent Being Considered for Introduction to Australia A rust fungus Host-range testing may take two or three more years to complete

Boneseed Leafroller in NZ Releases: ,500 Larvae 3080 Adults 36 Sites Establishment North Island: looking fairly promising South Island: not recovered after winter

Boneseed rust: Highly promising biocontrol agent Witches’ broom symptom Spore containing pustules on leaf

Host-range Testing of the Boneseed Rust Began in 2007 in South Africa. Intracellular vesicle Penetration point Basidiospore Detached leaf assay

Whole plant inoculation trial, to run for 3 years - needed for witches’ broom symptom development

Stemphyllium/leaf roller synergy? -tip dieback

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