Got Bed Bugs? Bedbugger Forums » Reader questions (do not fit into other categories)
technical questions.
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Hello, new to site but need info, In my treatment of bed bugs it has appeared that when a prior failed using incorrect pesticides has sent the bugs into wall, floor, roof cavities etc., they appear to settle there permanently and only spread back to the bed area as the population re grows. This makes treatment very difficult and seems to explain a couple of failures I have had. Is this consistant with other controllers, investigators experience?
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Can't answer your question, but am wondering what pesticides were used.
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I use steam and an odour free bendio-carb and, generally, succeed to clear bugs except when a previous treatment has used synthetic pyrethroids or other strong pesticides. It is becoming more and more apparent that this puts them into cavities and they happily nest there, permanently. Any further info on this appreciated. A further hyperthetical is that it is the female bed bug, when impregnated, that seeks a new nest thus insuring the bed bug that hides in your luggage or books, clothes etc is an impregnated female who will start a new infestation on arrival at destination. Comments?
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senior member
Joined: Mar '08
Posts: 745
Posted 1 year ago
Wed Nov 19 2008 23:19:50
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Is this your site listed in your profile? It sure as some of the same info you list here with your questions? Let us know your point please?
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Yes, abedbugspecialist.com.au is my site. I specialise in bed bug treatments over in perth west australia and am trying to get as much information on bed bug habits as possible to try and eliminate the few treatment failures I have. I think the site may prove useful as an information site for others and am happy to hear comments or critiques if you feel any information is wrong. Some information is from sourced research and some from my personal observations over the last few years treating these little vampires. Needless to say, I would like verification on theories as I don't wish to give false information.
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Terry,
What is the state of bed bugs in Australia? Are they a major issue or have they just started to become a problem? By the way, I have asked santa claus for a slab of VB for xmas.
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If you click on the icon above his name, it will link you to Terry's website.
Terry, there has been some interesting research in the US from the University of Kentucky that was conducted by Micheal Potter. Ken Haynes & Romero Alvero on behavioral avoidance with a number of pesticides.
Here is a link to an article about their work from last year.
http://www.sterifab.com/new_web_page/MAGAZINE_REPRINTS/july%20bed%20bugs.pdfRomero Alvero presented some additional studies at the NPMA conference last month. The new study should be published soon.
We need more research and reliable field observations to understand better why aggregations split up & disperse. A lot of the classic studies are over fifty years old.
I think the DNA tracking research that is being performed at North Carolina State University. Texas A&M & University of Arkansas may shed some light on your questions.
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Great choice but I would recommend crown lager! Like elsewhere, bed bugs are becoming almost a plague. Here in Perth they go quiet for a few months in winter but further north they are feasting twenty four seven. The 2000 olympics was our implosion of bugs but, again like elsewhere, poor treatments, ignorance and a failure of health departments to appreciate the problem has seen bug infestations multiply at an alarming rate. Few pest controllers here are prepared to use steam and many are down right ignorant of correct procedures. I guess this is common as well?
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Hi Doug, thanks for the link, I found it incredibly interesting if frightening. They don't, however, discuss the evasive habits nor the bendio-carb that I use so will have to keep searching for more info. If you know of any further research sites I would be extremely appreciative.
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cilecto
oldtimer
Joined: Aug '08
Posts: 896
Posted 1 year ago
Thu Nov 20 2008 22:15:54
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terry glasson - 1 hour ago » They don't, however...the bendio-carb...
According to Wikipedia, carbamates are off the market for household use in the USA, so there probably won't be a lot of US research. For Australia, one name that comes up a lot is Stephen Doggett.
http://medent.usyd.edu.au/staff/sd.htmReference to study re "the bug you bring home is likely a mated female"
http://www.birc.org/MarApril2007.pdf - page 5, last column. -
Thanks Cilecto, just read entire article and it certainly enlightened me on some aspects. Nice to see I am on track about the females but will keep looking. It is a shame the carbomates are off limits there as I get very good results and it is obvious pyrethroids are not much use. I am aware of Stephen Doggart and have spoken to him. I am going to digest facts and my dinner and am sure I will have more questions and ideas to bounce around cyberspace.
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Hi Terry,
Its an odd things with carbomates, you get good results, so does Sean in Canada but as far as I can see in the UK they are nothing but bad news. I get called in a lot behind other failed pest controllers on bed bug jobs. The most common failed product is bendiocarb based and it often means that bed bugs are a lot more diverse and spread out than I would expect to see in a property with a comparable untreated infestation.
I guess it falls back to the basis that we do what works for us and what works for some will not work for all.
Interesting thoughts with regards the colonisation strategy. I have always observed a greater tendency to mate when first captured rather than a frenzy of egg laying. Maybe you could test the theory by sexing the bed bugs and capturing then individually to see if they lay more than those in mixed sex groups. I personally feel that mating in new areas is a more likely colonisation strategy than going off on a wander when pregnant.
Welcome to the group, I will add your website for later reading.
David
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Hi David, tell me does the bendiocarb product of which you speak have an odour? Also do you use steam in your treatments?
Re thoughts on colonising, I have just read an article on BB biology from Reinhardt and Siva-Jothy and, though it was heavy going and mainly about the reproductive system of BBs, it did point out that migrating BBs (yes, it appears there is a concious effort for migration on a host) is 85 % adult and mostly female. Reasons or hypothesis for this were not given but, though this is no proof, I cling to my theory as a/ it would seem a sensible survival plan b/ it is in line with the behaviour of other species and c/ the aggressive, random and damaging way in which bed bugs mate would put an impregnated female at risk so distancing seems a survival need. Trust me, I am not dogmatic so any opinions to the contrary or thoughts on this would be welcome.
Are there any other pseticides aside from bendiocarbs and DE that you would recommend? I am very concerned about resistance and wonder if this could be a factor in your region for BC failure?
Am enjoying the discussion and information enormously. Congrats to all on the site.
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Hi Terry,
I am sure you have seen Doggett's second Bed Bug Code of Practice. It was revised based on input of the best entos working on bed bugs worldwide.
You may also find leads to relevant research via PCOs on the Bed Bug Resource. One of their discussion forums is just for bed bug professionals (though of course, I am one of those who won't know what goes on in there!)
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terry glasson - 1 day ago »
Hi David, tell me does the bendiocarb product of which you speak have an odour? Also do you use steam in your treatments?Hi Terry,
I am not aware that bed bugs have smell sensors, I have certainly not read about them. I think the only bendiocarb available in the UK has a smell, I don't use the stuff since I stopped treating for wasps years ago. With regards my treatment methods I don't have a fixed protocol and take appropriate action on each case that we inspect, it is a more complex way of working and has lead to the fact that it takes a month or two to train all my staff before they are fully field competent.
Stephen Doggett is definitely you best local resource to talk about your theories, I am hoping that Mike Siva-Jothy and Richard Naylor will be attending our London bed bug conference in December I will try and chat with them about behavioral work we certainly have a mass of anecdotal evidence from our collections but it is getting that into a format where theories can be tested.
Regards,
David
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Can you give me details of this december conferance as I can not find any?
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Hi Terry,
The December conference is something that we are organising in London to deliver the results of the UK's first high density bed bug mapping study that we have been working on for the last 6 months.
Attendance is by invitation and contribution only. I have been asked to take part in a few other conferences on the subject for 2009 and we will be planning a conference on bed bugs for hoteliers and interested parties in the new year in London.
I am hoping to get out and speak a little more in 2009 (invites always welcome).
David
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