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Potato late blight (exotic strains)

PLANT PEST Potato late blight is caused by exotic strains of Phytophthora infestans (A2 mating type).Scott Bauer, USDA Agricultural Research Service, Bugwood.org Potato late blight (exotic strains)Exotic to AustraliaExotic to Australia: Phytophthora infestans that causes potato late blight is…
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Grape phylloxera

PLANT PEST Grape phylloxera is tiny—less than 2mm in length—and feeds on roots of grapevines.Biolog. Bundesans., Inst. f. Pflanzenschutz im Weinbau , Bugwood.org Grape phylloxeraSome strains are present in parts of Australia and are under management in…
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Fire blight

PLANT PEST Trees with fire blight look burnt. Bruce Watt, University of Maine, Bugwood.org Fire blightExotic to AustraliaFeatures: A fast spreading bacterial infection of rosaceous hosts, particularly apple and pear, affecting all parts of the treeWhere it’s from: Asia, Africa, North, Central and…
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Stem borers of sugarcane (Chilo spp.) (exotic species)

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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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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Banana phytoplasma diseases

PLANT PEST Banana phytoplasma diseases cause plants to wilt and die.Richard Davis, Department of Agriculture,Fisheries and Forestry, Musarama Banana phytoplasmaExotic to AustraliaFeatures: Bacterial diseases causing wilting and severelosses in banana crops overseasWhere they’re from: Asia, Papua…
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Group pest risk analysis for scale insects

Final group pest risk analysis for soft and hard scale insects on fresh fruit, vegetable, cut-flower and foliage imports We have now completed the group pest risk analysis (PRA) for soft and hard scale insects on fresh fruit, vegetable, cut flower and foliage imports. When we do a group pest risk…
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Biosecurity Matters, Edition 4, 2020

​​​​​Biosecurity Matters   To receive an email notification of future editions, subscribe to Biosecurity Matters. Biosecurity is the management of the risk of pests and diseases entering, emerging, establishing or spreading in Australia and causing harm to animals, plants or human…
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Longhorn beetles

PLANT PEST Longhorn beetles are identifiable by their extra-long antennae.Asian longhorn beetle is up to 3.5 cm long, black with whitespots, and attacks hardwood trees.Kenneth R. Law, USDA APHIS PPQ, Bugwood.org Longhorn beetles (exotic species)Exotic to AustraliaFeatures: Three species of wood-…
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Dutch elm disease

PLANT PEST Dutch elm disease causes leaf wilting in elm trees, which arecommonly planted in Australian cities and gardens.  Minnesota Department of Natural Resources, Bugwood.org Dutch elm diseaseExotic to AustraliaFeatures: One of the most devastating plant diseases in the world that…
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