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]> To: [email protected] <[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] On Jun 19, 2019, at 7:39 PM, Fallon Murphy <[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 MurphyConservation Technician Center for Creative Photography | The University of Arizona1030 North Olive Road | P.O. Box 210103 | Tucson, AZ 85721(520) 621-0442 | [email protected] | www.ccp.arizona.edu -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/CAMu%3DY%2BfDtod2gp8ng2LZOv30%2BvS9GSzL5E2gNbF4jTOmDe%2B0hg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/4E56DB28-ABF1-4259-BFF8-233E51496ED0%40cwf.org. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Museumpests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/pestlist. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/56148753.198367.1561030424311%40mail.yahoo.com. For more options, visit https://groups.google.com/d/optout.
