you have Lady Beetles entering your home this winter
season, the species concerning you is most probably
(Harmonia axyridis), the multi-colored Asian
Lady Beetle (aka Japanese Ladybug). These beetles
are pretty easily distinquished because the generally
have 19 spots on their back and when noticed in your
home often come in large numbers or appear on the
outside wall of your home. The convergent lady beetle
(Hippodamia convergens) is most often what
is sold for garden aphid and pest control, this type
of lady beetle will not invade houses. Click here
to see our beneficial
lady beetles for garden aphid control.
to kill them is not recommended, because
all Ladybugs (except the Mexican bean beetle) are very beneficial
as predators of pest insects and eggs on agricultural and
horticultural crops. In addition, pesticides may be harmful
to you and your family's health. Soybean farmers in particular
take heed, the Asian Ladybeetle spends most of its summer
keeping your beans free of soybean aphids and scal insects.
Autumn and Fall Invaders
In the autumn or fall
of the year the Asian Ladybeetle starts looking for a place
to spend the winter. Most of the time you will find them congregated
on a sunny wall outside of your house with most looking for
a place to spend the winter. These beetles can easily get
indoors, wherever there are air-leaks, around weather-stripping
and through cracks at doors and windows. They can enter through
foundation and attic vents, gaps in siding and wherever plumbing
Are Asian Lady Beetles Harmful?
The Japanese Lady
Bug or Asian Lady Beetle is not harmful to humans. They are
very annoying, invading the house, buzzing around your head.
While they don't bite or sting, they often give you a good
"pinch" as they test out your skin looking for aphids.
Do Asian Lady Beetles Smell?
If the Asian Lady
Beetle is crushed, a noxious (but not harmful) odor results.
Contrary to popular belief there is no evidence that the beetles
are attracted by the smell of a crushed beetle. They are more
attracted to light than smell.
How to collect Lady Beetles (Ladybugs) from an inside environment
Getting them off the ceiling
To attract them to
a certain area inside, place slices of fresh apple in infested
areas. This usually will bring many of them down from ceilings
and walls. Replace with fresh slices every 4-7 days, or
whenever needed. Other folks have found that by leaving
one light on in the house that the lady beetles will eventually
congregate to that area.
Vacuuming them Up
You can vacuum them
up with a wet/dry vac by placing a towel or wadded-up paper
in the bottom of the collection canister to break the beetles'
fall. You can also use a Dust-Buster or sweep them up with
a dust pan and wisk-broom. Please keep in mind that if the
beetles are crushed a rather noxious smell will result,
so it is best to relocate them rather than kill them.
Moving them Outdoors
Now gently shake
them into a bag, box or jar and release them outside ASAP,
away from the home, by lightly shaking them onto a protected
place on the ground or into high grass and/or weeds. You
can also store them in your refrigerator (The cold sends
them into Diapause, or insect-hibernation) to keep until
Spring, then release them in your garden for pest insect
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