KNOW YOUR PESTS / KNOWLEDGE CENTER
Spiders can enter homes through openings and may stay when they find insects to prey on and quiet hiding places. Not every spider is dangerous. It is useful to check entry points, webs and the presence of other insects first.
Last updated: 7 October 2026
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Most spiders do not pose a serious medical risk to humans, but bites from some species may be medically significant. Do not touch an unidentified spider with bare hands. Seek medical assessment if a suspected bite is accompanied by pronounced or worsening symptoms; do not assume every skin lesion is a spider bite.
Spiders are not insects: they have eight legs and two main body sections. Unlike insects, they have no antennae. Their silhouettes, sizes and web-building behaviour vary between species.
Spiders in a home do not, by themselves, mean it is dirty or dangerously infested. Sheltered spaces and other small creatures to prey on may help them stay indoors.
Web-building species use their webs to catch prey and for shelter. Old webs can remain even when the spider is no longer there.
No. Some species roam to catch their prey; the absence of a visible web does not mean there are no spiders.
Check gaps under doors and around windows and pipes; repair insect screens.
Regularly remove webs and debris from corners; avoid direct hand contact in hard-to-reach places.
Reduce sheltered hiding places by organising storage areas and piles of belongings.
Also assess entry points and food sources for the other insects that spiders prey on.
Check that the product label explicitly lists spiders as a target. The general term “pest” does not mean the product is suitable for this target.
For this target pest, use only the surfaces specified on the label. Do not treat people, animals, food or textiles that come into direct contact with skin as application areas.
Compare the directions specific to the target pest and any stated duration of action. Do not apply one product's instructions to another or assume unverified durations.
Especially when buying online, check the back label for the biocidal product authorisation number, authorisation date, active ingredient and directions for use.
Choose a spider solution according to the target and application area.
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Application to surfaces where the target pest is present.
KILLING
LONG-LASTING CONTROL
Apply to surfaces specified on the label.
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KILLING
THE FASTEST CONTROL*
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There may be entry openings, hiding places and small insects for them to prey on. Their presence alone does not indicate that the home is dirty or severely infested.
No. Most species do not pose a serious medical risk; bites from some species are significant. Do not touch an unfamiliar spider with bare hands.
Bites are possible but are generally associated with defensive situations. Seek medical assessment for pronounced or worsening symptoms.
Removing webs is useful; entry openings, hiding places and the presence of other insects should also be checked.
Killing Max Spray and Killing Insecticide Aerosol are listed as surface products for spiders. Read each product’s label separately for its target-specific instructions.