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PLANT PEST
Scorched leaves are a common symptom of the bacterial disease Xylella which can infect hundreds of plant species.
John Hartman, University of Kentucky, Bugwood.org
Xylella and exotic vectorsExotic to AustraliaFeatures: A bacterial disease that…
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PLANT PEST
Ug99 is the name given to a type of fungal infection that is deadly to grains and would see our grain rejected by overseas markets.Sabine Werres BBA, Braunschweig, Germany, PaDIL
Ug99 wheat stem rustExotic to AustraliaFeatures: A fungal pest causing wheat stem rust that could cause…
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What is it?
Plum pox virus, also known as sharka, is the most devastating viral disease of stone fruit in the world. This virus affects many wild and cultivated species of Prunus plants, including…
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PLANT PEST
Pine pitch canker has infected the middle tree in this image,causing oozing and saturation with resin.Miloň Dvořák, EPPO.
Pine pitch cankerExotic to AustraliaFeatures: Fungal disease of all pine species and Douglas fircausing ‘bleeding’…
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PLANT PEST
Potato cyst nematode produces characteristic cysts on plant roots. This is a close up of cysts that measure only 0.5 mm across.Gordon Berg, DPI Victoria, PaDIL.
Potato cyst nematode (exotic strains)Exotic to Australia (white potato cyst nematode), or under management (golden potato…
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PLANT PEST
Leaf blight and shoot dieback on rhododendron caused by sudden oak death.Credit: Sabine Werres BBA, Braunschweig, Germany, PaDIL
Sudden oak death (airborne Phytophthora spp.)Exotic to AustraliaFeatures: A disease caused by airborne species of the fungus-like organism Phytophthora that…
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PLANT PEST
Early symptoms of Panama disease are yellowing leaves that collapse into a ‘skirt’.Dr Luadir Gasparotto, Embrapa, PaDIL.
Panama disease Tropical Race 4Restricted distribution in Northern Territory and Queensland (under quarantine control)Features: Soil-borne fungal disease that causes…
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Our National Priority Plant Pests (NPPP) list highlights the threats Australia faces from plant pests and diseases.The NPPP guides national action and investment of public funds to address these threats. This effort often has broader benefits to the system than just in preparedness for the specific…
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PLANT PEST
Grains of wheat infected with Karnal buntL.A. Castlebury USDA-ARS SBML, PaDIL.
Karnal buntExotic to AustraliaFeatures: A fungal disease that causes broken hollow (bunted) grain, powdery masses of dark spores, and a strong fishy odourWhere it's from: India originally, but now also…
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PLANT PEST
Huanglongbing causes uneven mottling across leaves leading to the eventual death of the citrus plant.M.E. Rogers, UFL, idtools.org.
Huanglongbing and vectorsExotic to AustraliaFeatures: A bacterial disease that causes yellowing, blotchy mottling, and unseasonal leaf flushing,…
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