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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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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
Fruit infected with plum pox virus is often marked with spots or rings.EPPO, Bugwood.org.
Plum pox virus (sharka)Exotic to AustraliaFeatures: Plum pox virus is the most devastating viral disease of stone fruit in the world, deforming fruitWhere it’s from: Europe, Africa, Asia, North…
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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
Texas root rot causes patches of dead and dying plants, here in a cotton field.Chris Anderson, NSW DPI.
Texas root rotExotic to AustraliaFeatures: Soil borne fungal disease that causes sudden wilt and deathin many plant species.Where it’s from: Southwest USA, Mexico, Venezuela, and…
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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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PLANT PEST
Spotted wing drosophila larvae in a strawberry.Credit: Hannah Burrack, North Carolina State University, Bugwood.org
Spotted wing drosophilaExotic to AustraliaFeatures: A tiny fly (2–3 mm) that attacks a range of soft-skinned fruit and reduces crop yield and quality through direct…
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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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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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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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