Pests to know in Hawaii
Pests documented in Hawaii
Many public records (166)
- African Fig Fly
- Amber snails
- American Cockroach
- Aphid Flies (Silver Flies)
- Aphid Parasitoid Wasps
- Apple Snails (island and channeled)
- Argentine Ant
- Ashy Gray Lady Beetle
- Asian Bush Mosquito
- Asian Citrus Psyllid
- Asian Tiger Mosquito
- Australian Cockroach
- Avocado Lace Bug
- Avocado thrips
- Bagrada Bug
- Banded Garden Spider
- Banded thrips
- Barnacle scale
- Bermudagrass Scale
- Bigeyed Bugs
- Bigheaded Ant
- Black citrus aphid
- Black Soldier Fly
- Black Twig Borer
- Black Witch
- Bluegum psyllid
- Bondar's nesting whitefly
- Booklice
- Braconid Wasps
- Brown Anole
- Brown Dog Tick
- Brown House Moth
- Brown Lacewings
- Brownbanded Cockroach
- Cactus Moth
- Cactus scale
- Cane Toad
- Cat Flea
- Chiggers
- Cigarette Beetle
- Citrus blackfly
- Citrus Leafminer
- Cluster Fly
- Coconut mealybug
- Coconut Rhinoceros Beetle
- Coffee bean weevil
- Coffee berry borer
- Common Green Bottle Fly
- Coqui Frog (common coqui)
- Cornsilk Fly
- Cotton mealybug
- Cottony Cushion Scale
- Cowpea aphid
- Cuban Laurel Thrips
- Cycad Aulacaspis Scale
- Damsel Bugs
- Dried Fruit Beetle
- Elongate Twig Ant (Graceful or Mexican Twig Ant)
- Encarsia Wasps
- Ensign wasp
- Erythrina gall wasp
- Eucalyptus Longhorned Borer
- False Oleander Scale
- Flesh Flies
- Florida Fern Caterpillar
- Formosan Subterranean Termite
- Foxglove aphid
- Fruit Fly
- Fuchsia Gall Mite
- Fuller Rose Beetle
- Garden Symphylan
- German Cockroach
- Ghost Ant
- Giant African Land Snail
- Giant Conifer Aphids
- Gorse seed weevil
- Green scale
- Green Stink Bugs
- Guinea Paper Wasp
- Hammerhead Flatworms (Land Planarians)
- Hawaiian Beet Webworm
- Hibiscus Scentless Plant Bug
- Hide Beetle
- House Mouse
- House sparrow (English sparrow)
- Ichneumon wasps
- Jumping Worms
- Lantana Lace Bug
- Latania scale
- Lawn shrimp (terrestrial amphipods)
- Leek Moth
- Light Brown Apple Moth
- Lobate Lac Scale
- Long-tailed silverfish
- Longhorn Crazy Ant
- Longlegged Flies
- Longtailed Mealybug
- Lychee erinose mite
- Mealybug Destroyer
- Mediterranean Fruit Fly (Medfly)
- Melon Fly
- Melon thrips
- Merchant Grain Beetle
- Minute Pirate Bugs
- Muscovy Duck
- Oblique Streaktail
- Olive Fruit Fly
- Omnivorous Leafroller
- Orange spiny whitefly
- Oriental Fruit Fly
- Oriental Rat Flea
- Outdoor centipedes (stone, soil and bark centipedes)
- Pantropical Huntsman Spider
- Papaya Mealybug
- Passionvine mealybug
- Pepper Weevil
- Pharaoh Ant
- Pickleworm
- Pigeon (feral rock pigeon)
- Pink Scavenger Caterpillar
- Poplar petiolegall aphid
- Powderpost Beetles
- Privet mite
- Purple scale predator
- Pyriform scale
- Red wax scale
- Redlegged Ham Beetle
- Rice Weevil
- Robust Crazy Ant
- Roger's crypt ant
- Roof Rat
- Root mealybugs
- Rose Slugs (Rose Sawflies)
- Rosy Wolf Snail
- Sap Beetles (Picnic Beetles)
- Seedcorn Maggot
- Sixspotted Spider Mite
- Small Carpenter Bees
- Small Hive Beetle
- Small Indian Mongoose
- Southern House Mosquito
- Spider Mite Destroyer
- Spiny-Backed Orb Weaver (spinybacked orbweaver)
- Spirea Aphid
- Spotless lady beetle
- Spotted alfalfa aphid
- Spotted gum lerp psyllid
- Spotted-Wing Drosophila
- Springtail
- Steelblue Lady Beetle
- Strawberry sap beetle
- Striped earwig
- Surinam Cockroach
- Sweetpotato Hornworm (Pink-spotted Hawkmoth)
- Sweetpotato Weevil
- Threelined Potato Beetle
- Trichogramma Wasps
- Trissolcus Wasps
- Two-spotted leafhopper
- Vedalia Beetle
- White-Footed Ant
- Wild Pigs (Feral Hogs, Feral Swine)
- Woolly whitefly
- Yellow Crazy Ant
- Yellow Fever Mosquito
- Yellow-faced bees
Fewer public records (159)
- Agave Snout Weevil
- Almond Moth
- Angoumois Grain Moth
- Aphid Midge
- Ash Whitefly
- Asian Cockroach
- Banded Cucumber Beetle
- Banded greenhouse thrips
- Bandedwinged whitefly
- Barn Funnel Weaver
- Bean thrips
- Bean Weevil
- Bermudagrass stem maggot
- Billbugs
- Black and Yellow Mud Dauber
- Black bean aphid
- Black Larder Beetle
- Black Scale
- Blue-black spider wasps
- Boisduval scale
- Bold Jumping Spider
- Brown citrus aphid
- Brown Soft Scale
- Brown Widow
- Cabbage Looper
- Cadelle
- Carcinops pumilio (a hister beetle)
- Carpenter Ants
- Casemaking Clothes Moth
- Cheese Skipper
- Chilli Thrips
- Chrysanthemum lace bug
- Citrus thrips
- Click Beetles
- Clover Mite
- Cochineal Scale
- Common blossom thrips
- Common House Spider
- Common Pillbug
- Confused Flour Beetle
- Convergent Lady Beetle
- Crab Spiders (e.g., goldenrod crab spider)
- Crapemyrtle Aphid
- Cuban Brown Snail
- Cutworms
- Dampwood Termites
- Diadegma insulare
- Diamondback Moth
- Dictyospermum scale
- Dog Flea
- Drain Fly (Moth Fly)
- Dung beetles
- Eucalyptus snout beetle
- Eucalyptus Tortoise Beetle
- European Earwig
- European Paper Wasp
- False stable fly
- False Widow Spiders
- Field Crickets
- Fiery Skipper
- Florida red scale
- Foreign Grain Beetle
- Fungus Gnat
- Gall and Bud Mites
- Granary Weevil
- Granulate Cutworm
- Grasshoppers
- Greedy scale
- Green Lacewings
- Green shield scale
- Greenhouse Millipede
- Ground Beetles
- Hog louse
- House Fly
- Hover Flies (Flower Flies, Syrphid Flies)
- Imported Cabbageworm
- Indianmeal Moth
- Klamathweed beetles
- Lace Bugs
- Leafcutter Bees
- Lebbeck mealybug
- Lesser Grain Borer
- Lettuce aphid
- Maize Weevil
- Mango scale
- Mango shield scale
- Mealybugs
- Monarch Butterfly
- Mulberry whitefly
- Nigra scale
- Norway Rat
- Odd Beetle
- Oleander Aphid
- Oleander scale
- Palestriped flea beetle
- Palm aphid
- Pantropical jumper
- Phorid Fly
- Pineapple mealybug
- Pink Hibiscus Mealybug
- Plume Moths
- Potato Tuberworm
- Predaceous diving beetles
- Pseudoscorpions
- Puncturevine weevils
- Purple Scale
- Pygmy grasshoppers
- Red Flour Beetle
- Red-shouldered bug (Jadera bug)
- Redgum Lerp Psyllid
- Rhodesgrass Mealybug
- Ringlegged Earwig
- Rose scale
- Rose-grain aphid
- Rough Stink Bugs
- Rove Beetles
- Rugose Spiraling Whitefly
- Scale Insects
- Sclerodermus Wasps
- Scorpions
- Sevenspotted Lady Beetle
- Silverfish
- Southern Chinch Bug
- Spider Mites
- Spider Wasps
- Spittlebugs
- Spruce Spider Mite
- Stable Fly
- Striped Lynx Spider
- Sweat Bees
- Tachinid Flies
- Tessellated scale
- Threecornered alfalfa hopper
- Thrips
- Tobacco Budworm
- Tomato Pinworm
- Treehoppers
- Tropical House Cricket
- Tropical rat mite
- True Armyworm
- Turnip aphid
- Variegated Cutworm
- Varroa Mite
- Vespiform thrips
- Warehouse Beetle
- Water boatmen
- Waterlily aphid
- Wax Moths
- Western Honey Bee
- Western Yellowjacket
- White Peach Scale
- Whiteflies
- Whitelined Sphinx
- Wild turkey
- Willow-carrot aphid
- Woodlouse Spider
- Woolly Apple Aphid
- Yellow Mealworm
- Yellow sugarcane aphid
Range named by extension sources (6)
Termites in Hawaii
Invasive species reported here
Pests local experts flag
Roof rats and Norway rats are the rat species most often behind complaints in Hawaii, according to the state Vector Control Branch.[8]
Public agencies that handle pests
The Hawaii Department of Health Vector Control Branch traps mosquitoes for routine surveillance and uses integrated pest management for mosquito control.[7]
Hiring a licensed company
Hawaii's pesticide regulatory agency is the Hawaii Department of Agriculture (Pesticides Branch).[1]
Free local help
University of Hawaii Master Gardener helplines on Kauai, Oahu, Maui and Hawaii Island answer residents' gardening questions.[9]
Local guides in Hawaii
Through the year
- Spring to Summer
- Formosan termites in Hawaii have major swarms in May and June, though small flights can happen any time of year.[4]
Sources
- National Pesticide Information Center, “State Pesticide Regulatory Agencies.” npic.orst.edu/reg/state_agencies.html (accessed 2026-10-06)
- University of Hawaii College of Tropical Agriculture and Human Resources, “UH Termite Project.” manoa.hawaii.edu/ctahr/termite/index.php (accessed 2026-10-06)
- University of Hawaii College of Tropical Agriculture and Human Resources, “The Formosan Subterranean Termite in Hawaii.” www.ctahr.hawaii.edu/oc/freepubs/pdf/HSP-2.pdf (accessed 2026-10-06)
- University of Hawaii College of Tropical Agriculture and Human Resources, “Crop Knowledge Master: Coptotermes formosanus.” cms.ctahr.hawaii.edu/ckm/Home/Insects-and-Other-Pests/Termites/Coptotermes-formosanus (accessed 2026-10-06)
- Hawaii Department of Agriculture and Biosecurity, “Little Fire Ant Information.” dab.hawaii.gov/pi/main/lfainfo/ (accessed 2026-10-06)
- Hawaii Invasive Species Council, “Coconut Rhinoceros Beetle.” invasivespecies.hawaii.gov/crb-overview/ (accessed 2026-10-06)
- Hawaii Department of Health, Vector Control Branch, “Mosquito Program.” health.hawaii.gov/vcb/mosquitoes/ (accessed 2026-10-06)
- Hawaii Department of Health, Vector Control Branch, “Rodent Program.” health.hawaii.gov/vcb/rodents/ (accessed 2026-10-06)
- University of Hawaii College of Tropical Agriculture and Human Resources, “UH Master Gardener Helplines.” cms.ctahr.hawaii.edu/uhmgprogram/Helplines (accessed 2026-10-06)