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Southern armyworm

PLANT PEST Egg mass of fall armyworm. Ronald Smith, Auburn University, Bugwood.org Southern armywormSouthern armyworm (Spodoptera eridania) is exotic to AustraliaFeatures: Larva – fall armyworm either light green or brown with white lengthwise lines; southern…
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Grapevine leaf rust

PLANT PEST Grapevine leaf rust causes dark spotting on the top surface of leaves.Credit: Andrew M. Daly DPIFM, PaDIL Grapevine leaf rustExotic to AustraliaFeatures: Fungal disease of grape causing dark spots on the uppersurface of leaves.Where it's from: Asia, North America, South America,Timor-…
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Mites of bees

PLANT PEST A varroa mite on the back of a honey bee.Scott Bauer, USDA Agricultural Research Service, Bugwood.org Mites of bees (Apis spp.) Exotic to Australia, with varroa mite (Varroa destructor) present in parts of Australia and are under management in…
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Bursaphelenchus spp. and sawyer beetles

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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‘Candidatus Liberibacter solanacearum’ complex

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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Phytoplasmas 16Srl group

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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Potato cyst nematode (exotic strains)

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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Panama disease

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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Barley stripe rust (exotic strains)

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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Sudden oak death (airborne Phytophthora spp.)

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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