Construction or utility work can also stir up America cockroaches. If floor
drain exclusion points were to show no improvements have mechanical check for
failing sewer pipes. Sometimes pests can be the best “report card” for a
buildings health. Check for gaps behind wall mounted toilets as
well....contractors rarely caulk these in properly or only caulk were you can
see while standing this can allow movement vertically from basement to upper
floors. Over time wall mounted toilets migrate from the wall just from normal
use. Cheap foam backer rod can easily be inserted to exclude this as an entry
point. JTV
[image1.jpeg]
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080<tel:757-220-7080>
Cell 757-634-1175<tel:757-634-1175>
E-Mail [email protected]<mailto:[email protected]>
[X]
On Jun 20, 2019, at 7:33 AM, 'bugman22' via Museumpests
<[email protected]<mailto:[email protected]>> wrote:
Group -
Joel has given a good account for German cockroaches. However, the large
MaxForce bait traps do not work well for the American cockroach; they simply do
not enter them as readily as do German cockroaches.
The source of American cockroach infestations often remains a mystery. A
common way these large cockroaches enter a building is via dry floor drains.
Hoards of American cockroaches can be found in any municipal sewer system.
Kitchen disposal systems provide them with lots of food. From the sewer they
roam into buildings following sewer piping. Some individuals recommend
insuring a floor drain trap has water in it to prevent ingress. However, when
the water dries out, the drain becomes a cockroach highway into the building.
Prevention is easy; lift the metal cover off the drain, cover it with
fiberglass window screening, and then replace the cover. Drains out of sight
beneath cabinetry, abandoned sinks, showers, and toilets cannot be overlooked.
For these types of drains, simply stuff them with copper wool gauze. They will
still drain if water flows into them, but copper wool gauze will effectively
keep out all stages of cockroaches. Copper wool gauze will not rust. Do not
use steel wool, for it will rust and eventually turn to powder.
Public bathroom floor drains are often the culprit. Most janitorial workers
simply mop bathroom floors, allowing the floor drains to dry out.
For existing infestations, placement of glueboards in corners and along walls
in basements and sub-basements will capture lots of American cockroaches. These
cockroaches follow walls in their nightly search for food.
Look at which end of a glueboard the captured pests are caught and you can
determine the direction from which the cockroaches are traveling. This may
lead to finding that dry floor drain or daytime resting area of these large
cockroaches.
Good luck with your detective work.
Tom Parker
-----Original Message-----
From: Voron, Joel <[email protected]<mailto:[email protected]>>
To: [email protected]<mailto:[email protected]>
<[email protected]<mailto:[email protected]>>
Sent: Thu, Jun 20, 2019 5:34 am
Subject: Re: [pestlist] Baited Traps for Cockroaches
There are a few factors to consider with roaches. Are these just a few
weather related occasional invaders like American cockroaches that came in
after a downpour or did someone bring an appliance in from home or a thrift
store and the breakroom is teaming with German cockroaches that are settled in?
You do not have to answer this on here if you do not want to but this is
just to get you to think about risk. If you have an occasional invader type of
roach then I would try the insects limited products first. If they are Germans
I would get a pest control operator and make sure they rotate gel bait products
( theses need to be applied in very small dots for max acceptance)every three
months and use a growth regulator (not sprayed near collections)as German
cockroaches are so prolific and really hard to get rid of. Make sure exclusion
points, sanitation ,food storage, pallets,cardboard, paper bags, recycle bins,
are in check. Always think like a detective.....what has changed and why are
these now here. As far as staff seeing a trap I would just print up a small
sign explaining what and why it’s there or just a quick explanation in a
meeting...at least they will know you are on top of things which will actually
decrease the “squeamish factor”. JTV
Joel Voron Colonial Williamsburg Foundation
Conservation Dept.
Integrated Pest Management
Office 757-220-7080
Cell 757-634-1175
E-Mail [email protected]<mailto:[email protected]>
[cid:]
On Jun 19, 2019, at 7:39 PM, Fallon Murphy
<[email protected]<mailto:[email protected]>> wrote:
Hello Everyone,
We have had a few cockroach sightings in our building and we are looking into
using baited traps from Insects Limited:
(https://store.insectslimited.com/cockroach-food-lure-set-of-10). We are
looking into also using a CombatMax Trap as well where it seems that a
cockroach would ingest a poison and would then take that poison back to their
nest.
We are wondering if anyone here has had experience using either of these
trapping methods? We are a little bit hesitant purchasing the bait that we
would affix to a trap,as seeing more cockroaches in traps can be unsightly and
disturbing to collections staff. However, we are also concerned if using the
CombatMax trap might harms collections or staff?
Thanks so much for your thoughts. We really appreciate it.
Best,
Fallon Tara Murphy
Conservation Technician
Center for Creative Photography | The University of Arizona
1030 North Olive Road | P.O. Box 210103 | Tucson, AZ 85721
(520) 621-0442 |
[email protected]<mailto:[email protected]> |
www.ccp.arizona.edu<http://www.ccp.arizona.edu/>
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