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Addressing environmental harm: reforming agricultural support28 March 2025This Insights paper discusses the economic mechanisms by which the hundreds of billions of dollars provided annually in agricultural support contribute to increased emissions, biodiversity loss and soil nutrient…
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Myrtle rust symptoms on leaves.D.T. Junghans Embrapa, PaDIL.
Myrtle (eucalyptus) rust (exotic strains)Exotic to AustraliaFeatures: A fungal infection that causes brown to grey lesions often surrounded by yellow sporesWhere it's from: Central America and Caribbean, United States, South…
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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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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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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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Spongy moth infesting a tree trunk. Note the dark yellow egg masses.Karla Salp, Washington State Department of Agriculture, Bugwood.org.
Spongy mothExotic to AustraliaFeatures: Medium sized moths that infest and destroy many kinds of plants; large hairy caterpillars up to 7 cm…
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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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The giant African snail is one species of exotic invasive snails that would damage crops and the environment if it established here. Pest and Diseases Image Library, Bugwood.org.
Invasive snails (exotic species) Exotic to AustraliaFeatures: A number of snail species including…
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The melon fruit fly is one of the exotic species that threaten Australia’s production of fruit and vegetables.Florida Division of Plant Industry, Florida Department of Agriculture and Consumer Services, Bugwood.org.
Fruit flies (exotic)Exotic to Australia. Mediterranean fruit fly is…
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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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