the SpiderExpert Trap F.A.Q.s
Read stories of people who've been
Q. - What are competitor and predators
of Hobo spiders?
|Courtesy Rebecca Aguilar in British Columbia
A. - There are 3 major predator spider types
that if found in homes seem to reduce the amount of Hobo spiders.
These spiders are the Steatoda spiders, Large jumping spiders, and
the other harmless European House spiders. We are working
on getting some pictures on our web site but have not accomplished
The preying mantis will also eat Hobo spiders
but due to its day time activity and the Hobo spiders night time
activity optimum results are not achieved. Other competitors
or predators would include birds, cats, "cat face" spiders,
wolf spiders, some crab spiders, several wasps, and other web weavers
that may catch a hobo in its web and then feast. The reason
for some of the effectiveness of these other insects is not because
they are incredible hunters. Instead, it is because of competitive
exclusion or in other words, there just isn't enough room or food
for the hobo spider so it won't try to make a home.
Q. - Are Hobo spiders living in the North
A. - We are not sure yet. Many people
say that they have them and even one person said they took it to
a county agent and had it identified as a Hobo spider but we have
not been able to verify it yet. Therefore we can not say that
Hobos are there for sure, although it makes sense that they would
live there, too.
is a list of areas that we feel confident that there are Hobo Spiders: Anywhere
in Washington, Oregon, Idaho, Montana, Wyoming, Utah, Colorado,
Southern British Columbia.
We feel that it is likely that there are
Hobos in Northern California. We have also received spider
samples from the many parts of Mid-West and North Eastern USA which
appear to be Hobo spiders.
Click here to read stories of people
who've been bitten
Q. - Do pesticides kill Hobo spiders?
A. - In order to kill Hobo spiders with
pesticides you usually have to hit the spider directly with large
doses. The problem with non discriminate spraying is that
you kill the good competitor and predator spiders and insects and
thus make more room for the more mobile and hardy Hobo spider.
This will often lead to a worse problem with Hobo spiders as I witnessed
in 1997 in my own home.
Q. - Are there other spiders that look
like the Hobo spider?
A. - Yes and no. The giant house spider
and the domestic or common house spider are both cousins to the
Hobo spider and look very similar with obvious differences.
The domestic house (Tegenaria domestica) spider is smaller than
the Hobo spider and has distinct rings on its legs but it does have
similar V shapes on it's abdomen. The giant house spider (Tenegaria
gigantia) also has the V shapes on its abdomen but has disproportionately
long legs, an awkward looking body, and is a slower mover than the
Hobo spider. It is also found more frequently higher
on walls, often near the ceiling and it is much larger the than
Hobo spider. The Hobo spider is more frequently found on the
floor or on walls at about eye level or lower. Although it
is not too unusual to see them higher on the walls.
Q. - Can Hobo spiders climb?
A. - Yes, they definitely can. They
are not good climbers and usually fall back to the floor after climbing
Q. - Is it unusual to find Hobo spiders
in bath tubs?
A. - Absolutely not, often Hobo spiders
are found in bath tubs, etc. The reason they are found there
is that they crawled up the sides, fell in and can't get out because
of the slick surfaces.
Q. - Do Hobo spiders come out of the drains?
A. - No. People often wonder if that's
how they get in their bath tubs but as I explained in the question
before this one it is not true.
Q. - Are the front swollen palps only found
on Hobo spiders?
A. - No, all spiders have palps and male
spiders have swollen palps. What the swollen palps indicate
is that it is a male Hobo spider. Females have them as well
but they are not swollen.
Q. - Is the male, the female, or the baby
Hobo spiders more poisonous ?
A. - Male Hobos are the most dangerous and
baby Hobo spiders carry the most potent venom but they can't expel
as much as adults. All of the Hobo spiders are dangerous and
should be avoided.
Q. - Are there other spiders that make
funnel webs in North America?
A. - Yes, there are estimated to be over
200 different spiders in North America that makes funnel shaped
webs. The grass spider is one example but in areas that Hobo
spiders are becoming more abundant the Hobo spider is seeming to
win most of the battles and the Hobo is taking there habitat.
It often quite easy to tell if it is a hobo web or not.
Q. - Are animals in danger of being bit
by the Hobo spider?
A. - Yes, but it is much more difficult
for a Hobo spider to penetrate through the animals hair or fur and
get close enough to the skin to bite. We have had reported
animals being bit but very few compared to humans.Click
here to read stories of people who've been bitten
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Q. - How far away can a spider be from
the trap and still be attracted to the trap?
A. - Normally 1 or 2 feet. The reason
for this distance is that we don't want the traps to attract spiders
from outdoors to indoors. This almost means that placement
of the trap is critical.
Q. - How long do the traps usually last?
A. - 2 to 3 months after taking the protective
strip off of each trap depending on how dusty the trap's surroundings.
If the location is very dusty you may only get weeks of use out
of the traps. Some people put them in their garage and then
change them every week. In a very dust free environment
people have had their traps last 4 or 5 months.
Q. - If unopened, how long can I store
A. - As long as you don't peel off the protective
cover we recommend not storing them much over a year and a half
so you can get the full use life of 2-3 months depending on dust.
Q. - Will the traps catch the "good
A. - The traps will catch anything that
walks on it, but because most spiders stay in or near their webs
or at least not on ground level most spiders don't come close enough
to the traps to become attracted and thus will not get caught usually?
Q. - How do I best use the traps if I have
pets or small children?
A. - Always try to put the traps in a place
that isn't easy to reach or get stuck to. If you think you
have to put the traps in an exposed area ALWAYS FOLD TRAPS SO IT
IS MORE DIFFICULT TO ACCIDENTALLY GET STUCK TO A TRAP WITH A LIVE
SPIDER THAT IS ABLE TO BITE.
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