Insect pests and plant diseases

ThumbnailTitleCrops/s affected
Tomato red spider mite among leaf hairs Tomato red spider mite
Multiple hosts
Tomato Potato Psyllid - current situation
Two leaves being held up by a human hand, leaves are green with significant brown patches Sudden oak death
Multiple hosts
Magnified image of 2 light green insects on a slightly darker green background Sth African citrus thrips
Citrus
A raspberry with a small brown fly on the surface Spotted wing drosophila
Multiple hosts
Aphids massing on soybean Soybean aphid
Pulses
Figure 4. Discolouration of wheat leaves caused by Russian wheat aphid Russian wheat aphid
Green grape leaf with discoloured segments that are light greenish-yellow Rotbrenner
Grapes
Apple leaves that have curled over and become misshapen Rosy apple aphid
Apples
Close up image of a small brown and grey weevil on a green stem of a rice plant Rice water weevil
Rice
Green rice leaves with white patches that have brown edges Rice blast
Rice
Potato tubers with wart like growths protruding from the surface Potato wart
Potatoes
Healthy potato plants surround a plant infected with PSTVd Potato Spindle Tuber Viroid
A potato crop with a definitive patch of stunted plants surrounded by the healthy crop Potato cyst nematodes pest information and biosecurity
Three plum leaves with mottled light green and brown patches (Biologische Bundesanstalf für Land-und Forstwirtschaft) Plum pox
Stone fruit
Reddish brown weevil with large snout on a bright green leaf Plum curculio
Multiple hosts
Female pink gypsy moth with wings expanded showing white and grey patterning of forewing and pink colouring of hindwing Pink gypsy moth
Multiple hosts
Pine nematode
Grapevine with leaves that have yellowed Pierce's disease
Grapes
Banana tree with some green healthy leaves at top surrounded by yellowed and browned leaves that have drooped Panama TR4
Banana
Brown and tan coloured moth on a green grape Omnivorous leafroller
Grapes
Brown moth sitting on a pistachio Navel orangeworm
Citrus
Myrtle rust
Lemon tree with top branches almost completely defoliated Mal secco
Citrus
Lupin anthracnose
Little cherry virus image 2 Little cherry disease
Apple leaves curled tightly upwards and the leaf edges are rolled together into distorted tubes Leaf curling midge
Apples
Infected rice grains on left showing brown patches on grains, uninfected rice grains on right with even cream/tan colour Kernel smut rice
Rice
Grapefruit leaves that have yellowed especially along leaf veins Huanglongbing
Citrus
Asian giant hornet on a leaf eating a honey bee. Hornets
Environmental and ornamental plants
Magnified image of a hazelnut mite showing oval body, black brown colouring and fine hairs covering the body. Hazelnut mite
Nuts
Green grape leaf with many small reddish-brown spots covering the upper surface Grapevine leaf rust
Grapes
Brownish grey snail shell showing opening and the snail flesh Golden apple snail
Rice
Adult glassy winged sharpshooter showing dark brown colouring, transparent, red veined wings and white chalky spots about half way down the outer edge of each wing Glassywing sharpshooter
Multiple hosts
Closeup of a cluster of about 20 giant willow aphids feeding in a close group on a twig Giant willow aphid
Figure 3. Pine tree infested with giant pine scale has white waxy substance in cracks of bark(Image: VIC DEDJTR) Giant pine scale
Branch of apple tree that has curled into a hook shape and leaves are browned and dying Fire blight
Apples
European House Borer
Small tree branch with area of orange-dark brown canker on bark European canker
Apples
A coffee bean with a small black beetle on the surface Coffee berry borer
Coffee
Green citrus leaves with orange spots Citrus canker
Citrus
Chestnut blight
Cherry fruit with a black fly with brown mark on head Cherry fruit fly
Cherries
Cedar pine branch with orange tentacle-like fungal growths Cedar apple rust
Apples
Candidatus
dark brown fungal lesions on five box leaves Buxus blight
Environmental and ornamental plants
Green apple with large brown patch and also circular grey fungal growth Brown rot
Apples
Brown marmorated stink bug Brown marmorated stink bug
Multiple hosts
Blueberry rust
Banana leaf with fungal lesions that are dead at the centre, have a black margin and surrounded by yellow Black sigatoka
Banana
Two unripe bananas with brown fungal spots all over Banana freckle
Banana
A dark, red brown mosaic pattern on the banana flower Banana bract mosaic virus
Banana
Yellow-brown moth with wings extended Bamboo leaf roller
Environmental and ornamental plants
Rice crop with one plant with light yellow leaves sticking up higher than surrounding plants Bakanae
Rice
Seed head of a rice plant with some seeds brown and upright, indicating they are diseased Bacterial panicle blight
Rice
Grapevine branches with leaves that have wilted and died Bacterial blight
Grapes
Male and female Asian gypsy moths shown in same picture. The female is primarly white with a longer, narrower body shape than the male. The male is primarily brown. Both have brown wavy patterning on the wings. Asian gypsy moth
Multiple hosts
psyllid insect on a leaf (magnified) Asian Citrus Psyllid
Citrus
Two hawthorn berries, one with a fly on the surface Apple maggot
Apples
Green grape leaves on vine, one leaf has a brown misshapen patch Angular leaf scorch
Grapes
Psyllid insect on a green leaf with a yellow background African Citrus Psyllid
Citrus