−−−−−−−−−−−−−−− 1 −−−−−−−−−−−−−−− 2 −−−−−−−−−−−−−−− 3 −−−−−−−−−−−−−−− 4 −−−−−−−−−−−−−− B = B −−−−−−−−−−−−−− 6 −−−−−−−−−−−−−− C = C −−−−−−−−−−−−−− 8 −−−−−−−−−−−−− M = M −−−−−−−−−−−−− 10 −−−−−−−−−−−−−− Y = Y −−−−−−−−−−−−−− 12 −−−−−−−−−−−−−−− 13 −−−−−−−−−−−−−−− 14 −−−−−−−−−−−−−−− 15 −−−−−−−−−−−−−−− 16

Prinect CS−4 Format 52 Dipco 4.5c (pdf) © 2008 Heidelberger Druckmaschinen AGB C M Y C 20 C 40 C 80 B C M Y CMY CMY B C M Y M 20 M 40 M 80 B C M Y slurB B C M Y Y 20 Y 40 Y 80 B C M Y slurC B C M Y B 20 CY MY B C M Y slurM B C M Y C 20 C 40 C 80 B C M Y slurY B C M Y M 20 M 40 M 80 B C M Y CMY CMY B C M Y Y 20 Y 40 Y 80 B C M

BEDBUGSControls that work

www.pestmagazine.co.uk July & August 201122 pest

this is the most effective pyrethroid based product testedby our laboratory although, as per other pyrethroids, acomplete kill may not result and reapplication will berequired.

Currently, there is an attempt to have DiatomaceousEarth Dust (DED) registered in Australia. DED is a highlyeffective insecticide, albeit slow acting, is effectiveagainst resistant bedbugs and has been long employedoverseas. The product has very low mammalian toxicity,very long activity, and resistance is unlikely to developdue to its mode of action (it absorbs lipids out of theinsect exoskeleton, which leads to dehydration anddeath). Hopefully, DED will soon be available.

Now the latest buzzword in insecticides is 'enzymes'.Apparently these chemicals can produce an instantdeath when applied directly to bedbugs, even thoseresistant to many products. Exactly what these enzymesare is still a mystery; sadly, however, early indicationsare that they do not provide good residual activity.There are already companies selling enzymes forbedbug control online in the US, but these products areunlikely to be registered here.

Another area of insecticide use has been in theimpregnation of mattresses and mattress covers. The activeemployed is typically permethrin. In light of the high degreeof resistance in bedbugs against this active, the expectedefficacy would be low. We have now tested Cimex-Pro, which hasbeen applied to mattresses in Australia, and found it to beineffective against our modern resistant strain of bedbug, althougha complete kill is achieved with old laboratory susceptible strains.

Similarly, tests against the ActiveGuard mattress liner (sold in theUS, www.allergytechnologies.com) produced only around 20%control with the resistant strain. Based on these research findings, itwould be difficult to recommend these products as part of a bedbugmanagement programme since most field infestations involvedinsecticide resistant strains of bugs.

Many disparate groups in the USA are now producingmanagement guidelines, too numerous to list here. While some areexcellent, 90% of the information is identical between each,indicating a huge waste of human resources and demonstrating theuncoordinated nature of bedbug management in the States. Someof the guidelines attempt to list every innovation in bedbugmanagement, but what is the point if a particular technology justdoes not work? Practical and useful information is needed for thepest manager (and everyone else impacted by bedbugs). One ofthe basic fundamental principles of the Australian Code of Practiceis that technologies are only included when there is evidence ofefficacy and, where there is such evidence, the limitations aredescribed. The reality is that every technology on the market haslimitations. How do we know this? Simply because there is still abedbug problem, which is growing in many parts of the world. If apest manager ever has a concern about a product, s/he shouldcheck the Code, if it is not listed, then it probably does not work.

By no means is this list endless, many more products were unveiledat the recent (September 2010) Bed Bug Summit in Chicago. Some

conceptually were quite silly, such as the Rest Assured handsanitiser for use after handling infested mattresses

(anyone who does so should wear disposablegloves). While others demonstrate more promise.

However, one aspect became clear; that there are nomagical silver bullets on the horizon. This means that an

IPM approach to bedbug management as per the Code ofPractice must still be followed.

Mattress & luggage protectors

Above:The BugZip

Below & left:Mattress and pillow protectors, withand without, insecticide impregnation

THERMOKILTHERMOKILINSECT CONTROL SYSTEMS

Worldwide pioneers of heat treatment for insect control

Suppliers of heat treatment and temperature monitoring

equipment, training and consultancy services

Email heatinsect@yahoo.com

Tel: 0845 1299974

Website www.thermokil.co.uk

Bedbugs, SPI, textile,

& timber pests?

In addition to the regular keynote andeducational sessions at PestWorld to beheld in New Orleans on 19-22 October,there is to be an optional, additional BedBug Forum.

Featuring renowned experts, the Forumprovides the latest research, controltechniques as well as information on thelegal implications of bedbug treatments.Bedbug sessions will run over the samethree days in October. There is noadditional cost for registered delegates.

In addition, and of particular interest tooverseas delegates, is an internationalround-up, with speakers from Australia,

South Africa, Canada, Japan, Germanyand Spain.

A new addition to PestWorldin 2011 is The House ofLearning. As seen at PestExand Parasitec, this is to be ahands-on demonstration fromcanine inspections, totreatment methods andmonitoring practices.

Additional bedbug forum at PestWorld

Data recently released by Terminix, the

largest pest control servicing company in

the USA, confirmed that New York

maintained its number one spot for

bedbug infestations.

In the Terminix ranking of most infestedcities, the rest of the locations listed sawsome reshuffling of position compared withthe company's initial 2010 list. In addition,a couple of locations made an appearancefor the first time.

In 2011 the 15 most bedbug-infested citieswere, in descending order: New York,Cincinnati, Detroit, Chicago, Philadelphia,Denver, Washington DC, Los Angeles,Boston, San Francisco, Columbus (Ohio),Dayton (Ohio), Baltimore, Louisville(Kentucky) and Dallas.

The list was created by compiling data from

the 350 Terminix branches across thecountry. The company evaluated complaintcalls from customers as well as confirmedcases by service professionals when creatingthe ranking.

Baltimore, Dallas and San Francisco appearon the list for the first time this year,replacing Indianapolis, Cleveland andMinneapolis. Cities not appearing on the listmay still encounter bedbug infestations asmost cities and states have reported bedbugactivity during the last year.

In the US this is a national epidemic that hasplagued homeowners, hotels, apartmentsand even retail centres over the past year.The bedbug problem is growing in scopeand severity according to Terminix, and themovement of pests isn't expected to slowanytime soon.

www.epa.gov/bedbugs/productsearch

BEDBUGSNews from the USA

July & August 2011 www.pestmagazine.co.uk 23pest

Dogs get certifiedThe use of dogs to detect bedbugs in the USA isnow a nationwide accepted practice. Yet, todate, there has been no central certificationsystem for these four-legged practitioners. Torectify this, the National Pest ManagementAssociation (NPMA) organised the firstNational Canine Conference on 1-3 June inPhiladelphia. Over 200 people attended alongwith more than 50 canine candidates to be putthrough their paces to receive officialcertification.

NPMA had three objectives for the conference,explained Jim Fredericks, director of technical services for NPMA. “Our first objective was toprovide an educational forum for canine handlers and business owners about the science,legal issues, training methods and business models behind canine scent detection,” detailedJim. “Secondly, NPMA wanted to provide a centralised location where canine teams had theopportunity to become certified by third-party evaluators in accordance with the NPMA BestManagement Practices. Our final objective was to provide an environment where handlers,trainers, business owners and academics could informally exchange ideas about the future ofcanine scent detection and ways that our industry can maintain its high level ofprofessionalism. All in all, I think we succeeded in achieving all three of our objectives and wewere very pleased with the outcome of the meeting,” he concluded.

America's most infested cities

EPA’s bedbug

pesticides databaseWith cases of bedbug infestations increasingin the USA, the Environmental ProtectionAgency (EPA) has launched a newdatabase listing all pesticides registered forthis purpose. The new search tool will letconsumers choose an EPA-registeredbedbug product that meets their needsand is safe, if properly used according tolabel instructions.

There are more than 300 different productsregistered by EPA for use against bedbugs.When selecting a bedbug pesticide product,it is important to choose one that isappropriate for the situation, such as wherethe pesticide will be applied, and to alwaysfollow the instructions on the pesticide'slabel.

This new product search will allowconsumers to find bedbug products bycompany, name, EPA registration number,active ingredient and place of application.

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