● portfotolio ● albums of Plant pests and diseases

Sea oats

Alligators

Anhinga anhinga

Camellia: Color breaking

Indian hawthorn (Rhaphiolepis indica): Entomosporium leaf spot

Agave: Scale

Ficus: Cuban laurel thrips, Gynaikothrips ficorum

Banana spider

Sugarcane lacebug

Epipremnum aureum: Algal leaf spot

Yucca elephantipes: Brown leaf spot

Spiders

Banana: Split fingers

Strigula elegans

Guava: Algal leaf and fruit spot

Tropical almond: Rats feeding injury to nuts

Insignorthezia insignis (greenhouse orthezia)

Alocasia macrorrhiza: Mealybugs on leaf

Tahitian gardenia: Scales

Onion: Bacterial soft rot

Plum: Black knot

Hawaiian cotton: Mealybugs

Bitter melon (Momordica charantia): Powdery mildew

Okra: Mealybugs tended by ants

Aquatic weeds

Azolla pinnata (Ferny azolla, mosquito fern)

Spinach: Cercospora leaf spot

Mustard: White rust

Noni: Thrips feeding injury

Coprinus lagopus

Wedelia: Blotch miners

Acacia koa: Lichens

Silky oak dieback

Oriental fruit fly (Bactrocera dorsalis)

Pig damage to avocado

Crucifer: Powdery mildew

Cucumber: Anthracnose

Panax (Polyscias guilfoylei): Powdery mildew

Mock orange: Scales and sooty mold

Pycnoporus

Centipedes

Variegated Flax Lily 'Vairegata' (Dainella tasmanica): Leaf spot, blight

Aleurites moluccanus (kukui): Scales

Papaya: Latexosis

Coprinus cinereus

Cassava: Persea mites feeding injury

Stator limbatus

Pineapple: Translucent fruit pulp

Red ginger: Bagworm moth feeding injury

Banana: Fusarium wilt (Panama disease)

Breadfruit: Potassium deficiency

Hibiscus clayi

Mango: Jelly seed

Aphelenchoides

Colocasia gigantea: Alternaria leaf spot

Kale: Bacterial soft rot

Avocado: Phytophthora root and stem rot

Magnolia: Algal leaf spot

Ae Ae

Precocious germination of seed

Cassava: Spider mites

Lettuce: Downy mildew

Avocado: Stem rot

Parasitic wasps

Beauveria bassiana

Banana: Fusarium wilt (Panama disease)

Papaya: Lasiodiplodia fruit rot

Papaya: Pacific beetle roach feeding injury to stem

Beach naupaka (Scaevola taccada): Fasciation

Tree: Heartwood infection (fungal)

Celery: Septoria leaf spot

Bean sprout: Rhizoctonia girdle

Pineapple: Heart rot

Banana: Maturity bronzing

Trichoderma

Coccus viridis (Green scale)

Edible fig: Birds feeding injury to fruit

Banana: Mechanical bruising injury to fruit peels

Nictation

Collembola (Springtails)

Hibiscus: Root rot

Ivy gourd (Coccinia grandis): Whiteflies

Polyscias filicifolia: Whiteflies

Butt rot of pineapple crowns

Hover fly

Corn: Ants tended by aphids on leaf

Ghost ants (Tapinoma melanocephalum)

Corn: Southern rust (Puccinia polysora)

Ficus rubiginosa: Termite injury

Pseuderanthemum: Aphids

Tomato: Root knot

Pineapple black rot (Pathogen: Chalara paradoxa)

Eucalyptus: Sem galls

Costus sp: Leaf spot

Dark butt bruchid

Phomopsis

Curvularia

The Gulf fritillary (Agraulis vanillae)

Grapefruit: Penicillium rot

Water lily: Leaf spot

Dragonfruit: Mealybugs

Acacia confusa: Basal stem rot and vascular necrosis

Squash: Slug feeding injury

Citrus: The Mediterranean scale

Crown gall

Castor bean: Leaf miners

Erythrina gall wasp

Pruning wound decay

Taro: Spiraling whitefly (Aleurodicus dispersus)

Bird-of-paradise: Scales

Peach: Brown rot caused by Monilinia fructicola

Tuberose: Thrips feeding injury to flowers

Tomato: Black mold

Mango: Fruit fly feeding injury

Napa cabbage (Won bok cabbage): Bacterial soft rot

Nectarine: Brown rot (Monilinia fructicola), left

Peach: Botrytis blight of fruit

Star jasmine mosaic

Ixora: Hemispherical scale (Saissetia coffeae)

Mango: Rats feeding

Cantaloupe: Fusarium rot

Blackberry: Postharvest rot of fruit

Strawberry: Postharvest rot of fruit

Banana: Leaf rubbing injury to fruit

Banana: Cigar-end rot

Nototrichium sandwicense: Ants tending scale insects

Watermelon: Powdery mildew

Hibiscus: Whiteflies

Papaya: Pseudoparlatoria ostreata Cockerell, gray scale

Diptera: Nematocera: Ceratopogonidae

Papaya: Potassium deficiency

Guava (Psidium guajava): Birds-feeding injury to fruit

Stellate scale (Ceroplastes stellifer)

Sowbugs

Physarum

Melon: Bacterial wilt (Pathogen: Erwinia tracheiphila)

Mango: Sap stain

Breadfruit: Mucor rot

Citrus: Scale insects

White-footed ant (Technomyrmex albipes)

Pseuderanthemum carruthersii var. reticulatum: Leaf spot

Papaya: Rats feeding injury to fruit

Phoma

Areca palm: Mealybugs

Noni (Morinda citrifolia): Frog-eye leaf spot

Rhizopus rot of Couroupita guianensis

Japanese privet (Ligustrum japonica): Scale

Stem bleeding of coconut palm

Mountain naupaka: Alternaria leaf spot

Macadamia (Macadamia integrifolia): Botrytis blight of raceme

Noni (Morinda citrifolia): Stem blight

Westringia: Root-knot nematodes

Ficus carica: Gray mold (stem blight)

Japanese pittosporum: Ants and aphids

Taro (Colocasia esculenta): Southern blight

Noni (Morinda citrifolia): Root knot

Beach naupaka (Scaevola taccada): Bunchy top

Carmona retusa (Fukien tea, Philippine tea): Algal leaf spot caused by Cephaleuros virescens

Eggplant: Paracercospora leaf spot

Spider lily: Mealybugs

Banana: Alligator skin

Calotropis gigantea (crown flower): Leafminers

Potato (Solanum tuberosum): Silver scurf

Agave: Mealybugs

Hydrosis (water soaking)

Aloe vera: Anthracnose

Taro: Ghost spot

Gygis alba

Mango: Crown gall

Catharanthus roseus: Powdery mildew

Banana: Corm weevil

Banana: Glyphosate herbicide injury

Banana: Bunchy top symptom

Banana: Morse code

Banana: Mottled petiole and leaf sheath

Banana: Rat feeding injury

Veronicella cubensis

Taro: Bacterial soft rot

Banana: Corm weevils

Banana: Cucumber mosaic virus (CMV)

Banana mealybugs

Banana bunchy top: Mottled petioles and leaf sheaths

Banana: Sooty mold, sooty blotch

Banana: Lightning strike injury

Breadfruit: Sap stain

Ixora: Aphids

Tortoise

Canna lily: Bagworm moth larvae feeding injury

Clouds

Cacao: Black pod rot

Cabbage looper

Sporangia (Phytophthora)

Watermelon: Fruit fly injury

Sea sponges

Banana: Sap stain

Cabbage: Black rot

Tomato yellow leaf curl virus

Eggplant: Phomopsis blight

Banana: Sooty blotch, sooty mold

Fusarium blight of a succulent

Mango: Bacterial black spot

Pandanus: Whiteflies

Irrigation problems

Eggplant: Aphids

Cactus: Carving injury to stems

Pomelo: Mites feeding injury

Jackson's chameleon (Trioceros jacksonii)

Okra: Aphids

Mango: Bird feeding injury

Evolvulus glomeratus (blue daze, evolvulus): Scale insects

Erythrina berteroana: Powdery mildew

Dolphins

Echeveria sp.: Powdery mildew

Coconut: Scales

Banana: Marasmiellus rot of pseudostem

Resinosis

Bronzing

West Indian flatid planthopper (Melormenis basalis)

Yam: Anthracnose

Cacao: Ants and mealybugs

Banana: Whiteflies

Travelers palm: Boron deficiency

Gold Tree, Primavera (Roseodendron donnell-smithii): Whiteflies

Papaya: White peach scale (Pseudaulacaspis pentagona)

Lagerstroemia indica (Crape myrtle): Powdery mildew

Plumeria: Mealybugs

Phallus rubicundus

Pleiospilos nelii (split rock): Fusarium

Tomato: Leafminers

Aspergillus

Nematodes

Tomato: Fruit cracks

Coconut: Eriophyid mites, feeding injury

Plumeria: Fasciation

Banana: Thrips feeding injury to fruit

Pig damage to banana plants

Peach: Gray mold

Hawaiian monk seals

Tahitian gardenia (Gardenia taitensis): Aphids

Hibiscus: Aphids

Dracaena marginata (Money tree): Mealybugs

Hibiscus: Erineum mites

Yam: Fungal rot of tubers post-harvest

Plumeria: Whiteflies

Lantana: Leaf miners

Banana: Scale

Honeydew

Banana: Mealybugs

Sap stain

Plumeria: Spider mites feeding injury

Azalea gall

Mealybug destroyer

Banana: Calcium deficiency

Photoperiod

Rose: Scale

Philodendron: Hydrosis

Pakchoi: Aphids

Corn: Chinese rose beetle

Rosemary: Spittlebugs

Taro: Spider mites

Sweetpotato: Black rot

Avocado: Potassium (K) deficiency

Vitex rotundifolia: Spittle bugs

Lantana: Leaf spot

Oriental flower beetle

Snow scale on papaya

Kalanchoe pinnata: Leaf spot

Anthurium blight

Humans as plant pests

Japanese pittsporum: Scale insects

Hawaiian sea turtles

Woodlice

Leucocoprinus birnbaumii (?)

Banana: Fused fingers

PEPS 405

Celery: Alternaria blight

Drone photos

Flea beetles

Brown anole

Euphorbia cyathophora: Powdery mildew

Pacific beetle roach

Eggplant: Spider mites injury (stippling)

Stippling

Banana: Cucumber mosaic

Gardenia volkensii

Mizuna: White rust

Scleorotium rolfsii on taro

Wedelia: Powdery mildew

Kale: Black rot

Mock orange: Powdery mildew

Juniper spittlebug (Clastoptera juniperina)

Bamboo: Scale insects on stem

Tomato: Fusarium wilt

Spider lily: Leaf blight

Jatropha integerrima (Peregrina): Rust

Kale: Powdery mildew

Anguina agrostis

Aquaponics

Hibiscus clayi: Powdery mildew

Banana: Multiple bunches

Sugarcane mosaic

Broomrape

Hemispherical scales

Coconut Rhinoceros Beetle (CRB)

Cycad: Mealybugs

Lily: Leaf mosaic

Latex exudate

Papaya: Stem-end rot

Bougainvillea looper

Strawberry: Prob. iron (Fe) deficiency

Eggplant: Mealybugs

Myrtle rust

Plantago major: Cercospora leaf spot

Cabbage white: Larval feeding injury to crucifer

Rosemary: Powdery mildew

Platanus sp.: Stem rot

Spatial aggregation (clusters)

Sunflower: Blotch miners

Paperbark: Myrtle rust

Hale berry: Scale insects

Annona muricata: Mealybugs and ants

Meyer lemon: Scale insects

Slug feeding on sooty mold

Euphorbia [Chamaesyce] hypericifolia (Graceful spurge): Powdery mildew

Youngia japonica: Rust

Croton: Mealybugs

Aloe vera: Leaf spots and blight

Broccoli: Leaf spot

Aster: Powdery mildew

Pandanus: Scale insects

Sow thistle: Powdery mildew

Russian kale: Psyllids

Cordyline terminalis: Ringspots on leaves

Russian kale: Aphids

Broccoli: Black rot

Phosphorous deficiency

Foot traffic injury to plants

Hong kong orchid: Persea mites

Water lettuce: leaf blight

Bougainvillea: Leaf spot

Red gum lerp psyllids on Eucalyptus

Naupaka: Ringspots

Avocado: Mites feeding injury

Kalanchoe: Powdery mildew

Kalanchoe: Anthracnose

Catharanthus roseus (Madagascar periwinkle): Botrytis blight of flowers

Powdery mildew of Oxalis corniculata

Powdery mildew of begonia

Morel mushrooms

Powdery mildew of ivy

Euglandia rosea

Onion: Thrips feeding injury

Goji berry: Powdery mildew

Black rot of crucifers

Blood lily: Ringspots and mosaic

Psyllid injury to Metrosideros polymorpha

Conocephalus saltator: The long horned grasshopper

Pseudocercospora nandinae on heavenly bamboo (Nandina sp.)

Leaf spot of sago palm

Veronicella cubensis

Botrytis blight of hibiscus flower

Cigar end rot of banana

Carving injury

Taro delphacids

Corn earworm

Powdery mildew of pumpkin

Fig mosaic

Mealybugs on cactus

Root "choking" a tree stem

Cucurbit powdery mildew

Kava whiteflies

Powdery mildew of eggplant

Eriophyid mites

Corn leahopper

Scales on orange fruit

White rust of radish

Leafhopper burn of green ti

Sweetpotato: Thrips feeding injury

Kava: Shot hole

Tahitian taro: Mosaic

Tumbleweed

Chive rust

Drought

Mealybugs on hibiscus

Okra: Pseudocercospora abelmoschi (leaf spot)

Platanus: Prob. Bark beetle injury

Papaya scales

Cactus bug

Peach leaf curl

Giant whitelfy

Pitaya (Dragon fruit): Fruit fly injury

Black Witch Moth (Ascalapha odorata)

Scales on orchid

Peanut rust

Bird's nest fungi

Colletotrichum musae

Rust of nutsedge

Fungal rot of red mombin

Ironwood decline in Guam

Frankia and nodulation

Charcoal injury to trees

Lobate lac scale

Aphid lions

Pikake: Fasciation, Phyllody, Virescence, Ringspots and Mosaic

Fasciation

Root knot of Acacia koa

Bradyrhizobium

Virescence

Phyllody

Emilia sonchifolia: Rust

Dollar spot

Daylily rust

Rusts (unclassified)

Plumeria stem borer

Sweet basil: Pseudocercospora leaf spot

Daisy (?): Ringspots

Winter melon (Benincasa hispida): Powdery mildew

Praying mantis

Weed-whacker (string trimmer) injury

Taro: Potassium deficiency

Sugarcane: Iron (Fe) deficiency

Hydraulic fluid injury

Coconut: Whiteflies (Aleurotrachelus atratus)

Slugs

Asian pear pests

Grasshoppers

Dieback of protea

Planthoppers

Syngonium auritum: Bacterial leaf blight

Bagworm moth

Dieback

Gramoxone herbicide injury to banana

Downy mildew of collards

Tomato anthracnose

White clover: Sooty blotch

White clover: Bacterial leaf spot

White clover: Stagonospora leaf spot

Boars and wild pigs

Macadamia quick decline

Brown patch (Prob.)

Japanese pittosporum: Cercospora leaf spot

Poss. Medicago lupulina: Powdery mildew

Rhizoctonia root rot

Pandanus: Mealybugs

Passion fruit anthracnose

Climbing spikes injury to coconut stems

Papaya mealybug

Downy mildew of sweet basil

Cuscuta sandwichiana

Dodders

Capenter bee

Grape: Gall mites

Grape anthracnose

Grape powdery mildew

Bamboo spider mite

Lilac: Powdery mildew

Gummy stem blight

Hibiscus rust

Mallow rust

Late blight of potato

Phytophthora stem blight of citrus

Coconut heart rot

Squash: Powdery mildew

Chinese banyan stem gall wasp

Greenhouse orthezia

Rust of Sudex

Dandelion: Powdery mildew

Powdery mildew of long bean

Cercospora leaf spot of Plantago major

Bacterial leaf spot of pepper

Frog-eye leaf spot of noni

Powdery mildew of poinsettia

Spiraling whitefly

Snails

Algae, not plant-parasitic

Oleander aphids

Leaf shredding

Wind damage

Ripening problems

Assassin bugs

Banana scab moth

Spider mites injury to tomato

Senescent spots, banana

Powdery mildew of sunflower

Okra powdery mildew

Septoria leaf spot of Cornus alba

Banana ripening problems

Tan spot of lima bean

Burrowing nematode

Kava dieback

Toppling of banana

Passionfruit: Cucumber mosaic virus

Zucchini: Powdery mildew

Zinnia: Cucumber mosaic virus

Brown citrus aphid

Tomato/tobacco hornworm

Citrus: Spider mites

Citrus leafminer

Pumpkin/squash anthracnose

Birds as plant pests