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PLANT PEST
Pine wilt nematode has devastated pine forests overseas.USDA Forest Service - Region 2 - Rocky Mountain Region, USDA Forest Service, Bugwood.org
Bursaphelenchus spp. (tree nematodes) and sawyer beetles (vector)Exotic to AustraliaFeatures: Nematodes (microscopic worms) that damage trees…
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PLANT PEST
Potato tubers infected with Candidatus Liberibacter solanacearum (Image: Joseph E Munyaneza, USDA-ARS)
The tomato-potato psyllid (Bactericera cockerelli) is the insect needed to spread the bacterial infection causing Zebra chip. The tomato-potato psyllid (but not the bacterial…
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The SCHS is a voluntary biosecurity agreement that seeks to manage biosecurity risk associated with sea containers arriving in Australia from Country Action List (CAL) countries at the port of loading.Participants in the SCHS can benefit from reduced intervention on arrival in Australia. Onshore…
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PLANT PEST
Symptoms are malformations in plants, in this case an onion flower,with aster yellows (left) and normal flower yet to open (right).Credit: Lindsey du Toit, Washington State University,Bugwood.org
Phytoplasmas 16Srl group (aster yellows group)Exotic…
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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
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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PLANT PEST
Leaves infected with barley stripe rust take on a yellowappearance. Frank Peairs, Bugwood.org
Barley stripe rust (exotic strains)Exotic to AustraliaFeatures: A fungal disease of barley that can cause completecrop lossesWhere it’s from: Asia, Europe, Central Africa and North,…
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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
A key symptom of tobamoviruses is mottling of leaves and fruit, here in cucumber.Gerald Holmes, California Polytechnic State University at San Luis Obispo, Bugwood.org
Tobamoviruses (exotic strains)Exotic to AustraliaExotic to Australia: One key virus, cucumber green mottle mosaic…
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PLANT PEST
Stem borers of sugarcane would be difficult to control if they made it into Australia’s cane fields.Chilo terrenellus. N. Sallam, BSES, PaDIL
Stem borers of sugarcane (Chilo spp.) (exotic species)Exotic to AustraliaFeatures: Medium to large moths…
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