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Pest Files: page 18

One reference page per pest: identification, the damage it does, what treatment involves and how long it realistically takes.

Articles

Hand sprayer resting on a potting bench beside leafy green plants in a greenhouseLawn and garden

Does Neem Oil Work? What 153 Field Trials Show

Azadirachtin averaged 46.1 per cent control against 73.9 for spinosad, and many products sold as neem oil have had the active chemistry removed.

October 1, 2026Sunlit pale clapboard wall on the south face of a house in strong low autumn lightAutumn invaders

Asian Lady Beetles: The Ladybugs That Bite and Stain

They bite, their defensive fluid stains permanently, and they are a documented seasonal indoor allergen. The M mark on the white pronotum is the identification.

October 1, 2026Grey papery wasp nest under the eave of a wooden house in summer sunWasps and bees

Wasp and Hornet Identification: Which One Is It?

The European hornet is the only true hornet in the country, the bald-faced hornet is not a hornet at all, and the biggest wasp in the...

October 1, 2026Warm Florida porch at night with a screen door and a lit bulb overhead, palmetto leaves beyondCockroaches

Palmetto Bug, Water Bug, Croton Bug: What People Mean

None of them is a species. The names map onto four different cockroaches and one aquatic insect that is not a cockroach at all, and the...

September 29, 2026Damp bathroom corner where tiled floor meets skirting, with condensation on the surfaceDamp-loving pests

Springtails: Harmless, Everywhere and Gone in a Week

They cannot bite, are not technically insects, and the ones indoors are already dying. Plus the skin infestation claim, and why it does not hold up.

September 29, 2026Damp garden stepping stone lifted at the edge of a flower bed showing moist dark soilDamp-loving pests

Earwigs: The Ear Myth and What They Actually Do

The name predates the year 1000 and the belief behind it is false. What the forceps are really for, and why earwigs are moisture indicators.

September 29, 2026Painted window sill and frame inside a house with bright morning light and a lawn beyondAutumn invaders

Clover Mites: The Red Specks That Are Not Biting You

Under a millimetre, plant feeders, and the red smear is their own pigment rather than blood. A plant-free band at the foundation is the treatment.

September 29, 2026Sunlit pale stucco wall on the south side of a house in autumn with bare branch shadowsAutumn invaders

Boxelder Bugs: Why They Cover the Wall Every Autumn

They do not bite, breed indoors or damage anything. They breed on female boxelder trees, and exclusion before the first cold snap is the only real...

September 29, 2026Weathered timber garden shed eave and soffit in late summer sun with dry grass belowWasps and bees

Yellow Jackets: Why Autumn Is When People Get Stung

A colony peaks at up to 15,000 workers in August and September, exactly when its internal food supply ends. That timing explains the aggression.

September 29, 2026Fine pale powder dusted along a skirting board and floor junction in an empty roomFor Property Owners

Does Diatomaceous Earth Work? What the Testing Shows

It kills by drying insects out, roughly nine times slower than the silica gel beside it on the shelf, and humidity works directly against it.

September 29, 2026Damp unfinished basement corner with a concrete floor, exposed joists overhead and a bare bulbDamp-loving pests

House Centipedes: The Predator in Your Bathroom

They eat silverfish, carpet beetle larvae, cockroaches and spiders. An adult has 30 legs and takes three years to get them. Their presence is a moisture...

September 29, 2026Dry leaf litter and mulch at the base of a house foundation wall at night under raking torch lightSpiders and scorpions

Wolf Spiders: Harmless, Webless and Passing Through

They build no web, form no indoor population and are harmless to people. The ones in your house wandered in at ground level looking to overwinter.

September 29, 2026