From the monthly archives:

January 2010

The University of Maryland’s Home and Garden Information Center has posted three videos of a bed bug lecture by Dr. Jody Gangloff-Kaufmann of the NYS IPM Program.

Bed Bugs Part 1: What is a Bed Bug?

Bed bugs Part 2: Identifying and inspecting for bed bugs

Bed bugs Part 3: How to get rid of bed bugs

Don’t miss the bug bomb.

We talked to Dr. Gangloff-Kaufmann in 2008.

Via Bughelp.org.

{ Comments on this entry are closed }

Dr. Changlu Wang has produced a new fact sheet, FS1117 – Detecting Bed Bugs Using Bed Bug Monitors (free PDF download), detailing step-by-step instructions to make and use the dry ice trap developed by Rutgers University (see the ScienceNews story from December and our previous wish-I-could-be-a-fly-on-the-wall note about the ESA meeting).

Please heed the caution advice about dry ice. It is probably unlikely that a professional pest manager will use a dry ice trap in your home, for liability reasons, but you now have several options to consider if, like so many, you are on your own when it comes to inspecting for bed bugs in your home:

There are some inherent safety risks that are associated with dry ice, and it is always advisable to contract the services of a pest management professional that uses devices that have been designed and tested to monitor and detect bed bugs. However, the dry ice trap, when designed and used correctly, offers an effective method for individuals that cannot afford professional pest management services.

It is impossible to overstate how important it is for affordable solutions to be developed and shared with the public. I am so grateful for Dr. Wang’s and his colleagues’ efforts.

The fact sheet has a brief comparative discussion of other bed bug monitoring solutions. Solutions need to be fitted to the circumstances. On the very effective passive monitor, Climbup Insect Interceptor, for example:

Interceptors are not intended for use in vacant rooms and cannot be used when furniture legs are absent or the furniture legs do not fit into the interceptor. Interceptors need to be placed for at least a week or longer to detect bed bugs at very low numbers.

The vacant room problem is an interesting one. I hope we will see more knowledge develop in this area.

For our note about the previously published research, see Baited pitfall traps for bed bugs.

{ Comments on this entry are closed }

In the Columbia Spectator today, Bedbugs spread, residents criticize city’s inaction:

Mark Quinn, a Morningside Heights resident whose building on West 109th Street, was listed on the bedbug registry, explained, “It’s so hard to get rid of these things, and you can’t ever tell where they are, but I’ve seen nothing done. We need to be aware and alert and the city needs to respond.”

{ Comments on this entry are closed }

The Ontario Non-Profit Housing Association has posted bed bug management specifications which were developed in collaboration with hsi solutions. This is a great communication and education tool for their residents and property managers — but there’s also generosity at play here for the rest of us who can now read this example of clearly thought-out bed bug treatment contract specifications.

The items are:

From the warranty:

Warranty for Unit Treatment

The warranty for unit treatment, planned or demand, shall be three (3) months from the service date. The warranty is also dependent on specific factors that may compromise the service effectiveness, such as adjacent infestations and other factors such as extremely heavy infestation, or conditions requiring further services. Unless such factors are identified by the Pest Control Service Provider (PCSP) to the Housing Provider before or at the time of treatment, the warranty shall be in force for the period noted.

From the expected service levels:

Adjacent Unit Inspections

Units immediately adjacent to the treated unit on the same floor shall be inspected at the same time as the treatment of the unit is undertaken. This will require preparation and advance notice to the tenant by the Housing Provider.

I think there are IPM contract recommendations out there but I have not seen one specific to bed bugs, so I hope this is helpful for those of you who are considering your own RFQs or negotiating contracts.

ONPHA also has a bed bug list-serv for their member property managers. Very cool.

{ Comments on this entry are closed }

Once upon a time, a national resource

by Renee Corea on January 26, 2010

in Issues and Challenges

A National Research Council report (70) on strategies and tactics for pesticide resistance management described insecticide susceptibility as a resource….

Source: Brogdon & McAllister (1998), Insecticide Resistance and Vector Control, EID.

Those crazy 80s, right?

But it’s fascinating:

Pest-control actions can resemble the depletion of any “commons.” Here the commonly held resource is the susceptibility of pests to available pesticides. Individuals acting independently can deplete this resource to the detriment of all, while the benefits of conserving susceptibility may or may not exceed the cost for any individual. Thus, reliance on individual users’ decisions may harm all users.

Pg. 423, Integration of Policy for Resistance Management, in Pesticide Resistance: Strategies and Tactics for Management (1986)

{ Comments on this entry are closed }

This Dow case study—Getting Beyond Bed Bugs, PCT—proposes just that:

Both [Bed Bugs and Beyond president Michael] Batenburg and [Global Pest Control general manager Kery] Bruzzo agree that the public and many pest control professionals are simply not aware about fumigation as a bed bug option.

I’ve heard this before but I’m not sure how true it is. More like, aware but priced out?

As for the case in question, Global was the fourth company on the job:

“We were the fourth pest control company they had hired. For almost a year we tried to take care of it with traditional tools — inspection, vacuuming, steam treatments and crack-and-crevice insecticide treatments. We would drill and treat in walls but could not get control because there were areas we could not reach with insecticides, or the bed bugs would simply move away from the treated areas. The problem was that one of the owners had tried a do-it-yourself approach for too long before calling in a professional, and the bed bug population just took over the structure.”

I also want to highlight Bed Bugs and Beyond‘s thoughts on containerized fumigation for move-ins:

Batenburg says fumigation will get a building or a person’s contents to a baseline of zero for bed bugs, but because fumigation offers no residual the goal then becomes prevent re-infestation. The important role of fumigation to combat bed bugs has a proven history. Years ago, hotels and other multifamily buildings would make it a part of the tenant’s contract to have their belongings fumigated before moving in. So, following a fumigation Bed Bugs and Beyond outlines steps to take to help prevent re-infestation.

While this is true as far as history, what of the apartment structure itself? Only once have I heard this seriously proposed as a policy solution.

Is it just me or does it seem like they moved everything around at PCT for no reason? Confused.

{ Comments on this entry are closed }

Carolyn Klass in The New Yorker, “The Bedbug Decider”

by Renee Corea on January 25, 2010

in News

Ms. Klass has retired according to the Talk of the Town piece.

How many of us can relate to this?

Dear Carolyn,
I am super paranoid that I have bedbugs.

We are all super grateful to entomologists, aren’t we?

The Cornell Insect Diagnostic Lab has posted a note that it’s closed until February.

{ Comments on this entry are closed }

Boing Boing has a picture of a “Disney-logoed DDT-impregnated wallpaper for the kids’ room” c. 1947.

No. words.

Enjoy.

{ Comments on this entry are closed }

Lou Sorkin began his lecture at last week’s special meeting of the New York Entomological Society by recounting a few choice tales of insect gourmandism—like the one about the tarantula tempura served at one of The Explorers Club’s annual banquets. Someone forgot to pluck their urticating defensive hairs and a call from the health department ensued. I heartily wish I could share much more with you (no, really) but I think I busied myself with some papers at Lou’s mention of the depilatory quality of cooked tempura batter. Don’t serve Lou mealworms is the only advice I can muster; unlike urticating hairs, mealworms make him sick!

Lou Sorkin

The Great Lou

Lou is famously exacting about public education materials about bed bugs. We are all better for his insistence over several years on highlighting the differences in appearance between the life stages of bed bugs. He spent considerable time on life stage drawings and photographs (beware the missing instar) and showed us (approvingly) Stephen Doggett’s update to his famous bed bug life stages (which you can see on page 16 of the latest draft of the Code of Practice) which was produced by photographing each bed bug individually and referencing the immature stages descriptions in Usinger for each instar. Lou clearly believes—and continues to persuade many of us—that accuracy and comprehensiveness in these matters is key in public education messaging.

He showed us innumerable photographs of bed bugs and bed bug harborage sites in all their glory, from the expected to the unexpected, his words and choice of photos cautioning in so many ways against the sort of received wisdom we have been exposed to for years (not 5 eggs a day, not only nocturnal, not just clover-leaf inspections…). Alert-looking bed bugs next to dead bed bugs, numerous barely-distinguishable immature bed bugs next to one or two adults (“you are not close enough”), heartbreaking advanced infestations, across-the-hall dispersal, the limited effectiveness of vacuuming—for both eggs and bed bugs, noting that he often plays with bed bugs and paint brushes (Lou!) and often they do not budge. I am so grateful for Lou touching on all these subjects, even if it was to a roomful of pest control pros. I wish more of you had come.

It was an interactive evening of bed bugs

Lou gave each person in the audience a loupe as a gift (like the one he gave me recently). And he had these for everyone to practice on:

live bed bug display boxes

Live bed bug display boxes

You all know about the value of a notched MetroCard as an inspection tool:

notched metrocards

Notched MetroCards - a Lou Sorkin bed bug inspection trick

“Grade School Bed Bug Project?”

These are two slides from Lou’s presentation which describe inexpensive monitoring ideas that you can use at home:

folded paper passive bed bug collector

Folded paper passive bed bug collector - click for larger image

Improvised sticky traps:

examples of sticky tape monitors

Examples of sticky tape monitors - click for larger image

Materials: “blue painter’s tape and 2 kinds of double-sided carpet tape plus using the backing of the tape as a cover.”

Vajra Kilgour

Vajra Kilgour is Vice Chair of Metropolitan Council on Housing and associate producer of WBAI 99.5 FM’s Housing Notebook. (Both Lou and Catharine Grad appeared on the program on January 4 to discuss bed bugs—read Bedbugger’s take and recap here.) Ms. Kilgour spoke about Met Council’s hotline (Q: “My landlord says I brought them in and I’m responsible.” A: “Your landlord is lying.”), Met Council’s bed bug fact sheet which she is personally working on developing, and legislative work. She noted that “laws can make a difference; there is less lead poisoning in NYC.”

She suggested that in the hard struggle to persuade landlords to do what they are legally required to do—maintain apartments in habitable conditions—the strongest action that tenants can take is to organize. She talked about the desperation of people who suffer from bed bugs—housing court litigants that are “bitten from head to toe”—and the people who simply cannot afford to heat-dry all their clothes, much less afford dry cleaners or throwing anything away.

The value of a strong tenant association is one important take-away message from Ms. Kilgour’s presentation.

Catharine A. Grad

Catharine Grad (Grad & Weinraub, LLP) spoke about the rights and responsibilities of landlords and tenants. She said that “a landlord has the obligation to eradicate bed bugs in a building; that is the law.” However, she urged the PMPs in attendance not to casually tell people (tenants) to move out or break their leases.1 “You have to show that the situation is intolerable to move out,” and “if the situation is being treated, you can’t break the lease—it’s a question of magnitude.”

Tenants are obligated to provide access to their apartments and risk eviction for their refusal. She recognized that when landlords provide inadequate pest control services, tenants must still provide access and “work with” even incompetent pest control professionals or risk becoming part of the problem.

When pressed about alternatives to going to court by a member of the audience who had spent thousands of dollars in litigation, Ms. Grad said that court is “a blunt tool, far from a perfect tool” that takes a long time, but there are effectively no alternatives (“the alternative to court is to get a consensus in a community that is strong enough to compel landlords and tenants to act responsibly”) and so landlords and tenants should not wait. Landlords who cannot gain access to infested apartments should begin court actions as soon as possible, and the same goes for tenants who cannot get their landlords to act responsibly.

She said it would be helpful for landlords and tenants to have “more specific directives” about how to proceed with infestations.

Megan Quenzer

Megan Quenzer’s perspective was precisely that of a tenant receiving inadequate bed bug pest control in her building. A new PMP who apparently knows what he’s doing has improved the situation, but the infestation in the building remains and Ms. Quenzer believes the bed bugs are simply moving from apartment to apartment through the walls, returning to apartments where they were thought to be eradicated.

She stressed the need for community education, for landlords as well as tenants (“everybody needs to be educated”), and expressed the hope that the city will track infestations and regulate bed bug services. She spoke of the efforts in other cities, particularly in Boston, and held her ground in the face of some persistent questioning by some in the audience about the futility of control efforts in the face of tenant introductions. It was also interesting, and sad I suppose, that some in the audience urged her to simply move out.

I am always seriously impressed by people who overcome the stigma of bed bug infestations (or are simply impervious to it) and speak publicly about their own experiences. I think Ms. Quenzer reached the pest control professionals in the room.

An audience of PMPs

The audience as I said was mostly from the pest control community, but I was happy to see Council Member Gale Brewer and Sharon Heath from the Department of Health. Some of the industry folks in attendance were Cesar Soto (Freedom Pest Control), Tim Wong (M&M), Natalie Raben (M&M), John Furman (Boot A Pest), John and Sue Russell (Action Termite & Pest Control), Todd Lorah (Action Termite & Pest Control), Kitty Lee (Residex), Gil Bloom (Standard Pest), Rick Cooper (Cooper Pest), and many others.

Killer Who?

Killer Who?

A note, however. The fact that the audience was overwhelmingly from the industry created an interesting dynamic when the guest speakers (a tenant advocate, a tenant lawyer and a tenant!) spoke in the second half of the evening. It’s useful to understand things as they really are and so I will quote one thing said by an anonymous PMP at the meeting:

“People go on the internet and become geniuses.”

Well.

Guess what, though, surprisingly, there was little back and forth about dogs! Or maybe I’m conditioned to expect the arguing about dogs that in any case did not materialize.

Bed bugs will not go away on their own

During his presentation Lou showed us this public education poster developed by WoodGreen Community Services in Toronto that I think would be a fitting way to end this post:

bed bug education poster

Bed bug education poster, WoodGreen Community Services

Source: All About Bed Bugs: An Information Guide (PDF)

Please tell someone about bed bugs.

Finally, I want to share what one person who was in attendance said. His reaction to what he heard during the meeting was, “this is so depressing.” Yes, it is in so many ways. But please remember what Dr. Stephen Hwang told us recently, because we truly can afford neither complacency nor hopelessness.

Heartfelt thanks to Lou. For more Lou, check out our interview from last year.

  1. This caution about giving improper advice to tenants cannot be stressed enough. I think that it is extremely important to understand that withholding any part of the rent and other actions such as breaking the lease, especially when undertaken without proper legal advice, expose the tenant to the risk of being sued by their landlords. Tenants can and should take their landlords to housing court instead. “HP” proceedings for repairs, I learned at a legal clinic offered by the West Side SRO Law Project recently that I have been meaning to tell you about, do not expose tenants to this risk and should therefore be recommended first. []

{ Comments on this entry are closed }

The University of Kentucky announced yesterday that knockdown resistance (kdr-type) mutations, conferring resistance to synthetic pyrethroid pesticides, are widely prevalent in U.S. bed bug populations. The study, forthcoming1 in Archives of Insect Biochemistry and Physiology, finds that one or two of two previously identified genetic mutations (briefly discussed here) are present in a majority of U.S. bed bug populations.

From the press release:

Fang Zhu, a post-doctoral fellow at UK along with fellow UK entomologists Mike Potter, Ken Haynes and Reddy Palli and several students, analyzed 110 bed bug populations from across the United States and found 88 percent of them had one or two genetic mutations. These mutations produce what is known as knockdown resistance, meaning the insecticide is not able to kill bed bugs.

[...]

“We need alternative insecticides to fight this bug,” Potter said, “Unfortunately today’s products are not as effective as ones we had previously. Non-chemical measures are important but are seldom completely effective and can be laborious and expensive. History has taught us insecticides are a crucial part of the bed bug solution.”

Data from this study will help pest management professionals make future decisions.

“The methods and primers developed by this group could be used to tell pest control professionals whether or not pyrethroids work on certain bed bugs by looking for these genetic mutations in the bugs’ DNA,” Palli said. “If it’s a target-site mutation, like the majority of these, spraying probably would be ineffective, but if it has another type of resistance, we could possibly add synergists to the current insecticide to help fight them.”

kdr-type mutations cause resistance at the pesticide target site via a mechanism of nerve insensitivity. (For an accessible explanation of pesticide resistance, I refer you to our interview with Dr. Alvaro Romero last year.)

For organochlorines and pyrethroids, these target sites are nerve sodium channels. Thus, DDT resistance can lead to pyrethroid resistance, as both pesticide classes act on the same target site.

As this study is not yet available, I reached out to the University of Kentucky researchers for clarification of the potential meanings of these findings.

New York vs Bed Bugs: Your study shows that the two mutations identified by Yoon et al. (2008) in a NYC population are actually widely prevalent in the United States?

Reddy Palli: Correct, more than 80% of populations showed the presence of one of these mutations.

New York vs Bed Bugs: In the press release you indicate that pest management professionals might use this information to determine a course of action. Can you confirm if UKY’s NYC and Cincinnati bed bug populations are among those with kdr mutations in your study?

Mike Potter: Some of the populations we tested from Cincinnati had one or both mutations while a few others did not (both of the latter still showed high resistance to pyrethroids in bioassays, however, suggesting that other resistance mechanisms may be involved). As far as the NYC populations we tested, all (12) had one or both mutations for pyrethroid resistance.

New York vs Bed Bugs: Are kdr mutations predictive of cross-resistance with other pesticide classes? I note that DDT conferring resistance on modern populations is stated as a possibility (but does this require further investigation?), but what of other possible cross-resistance possibilities?

Reddy Palli: Insecticides (eg. DTT, BHC) that use sodium channel as a target site likely show resistance. As you say, this requires further investigation. Insecticides (eg. Phantom and Propoxur) that work through target sites other than sodium channels may work fine on these resistant populations.

Mike Potter: Unfortunately, we just don’t have too many of these presently that have residual activity as a dry deposit other than products like Phantom (chlorfenapyr), desiccant dusts (e.g., silica gel, DE), and to a degree, the IGRs. Propoxur would be another but the decision to grant it a Section 18 emergency exemption is up to EPA.

New York vs Bed Bugs: I think the public may misinterpret this study as confirmation that “pesticides don’t work” — which is not really the case.

Mike Potter: I think it may be a bit too strong of a statement to conclude that pyrethroids “don’t work” on most of the bed bug populations in US, as we often do kill a percentage of the individuals we test in the laboratory, especially when they are contacted directly with the wet spray deposit. Dry residues typically kill far fewer and we know this to be important for optimal performance of products in the field. Reports from many pest control firms further indicate the pyrethroid products are not performing as well as they would like. Some companies continue to believe that they are working ok, but generally these companies are also incorporating additional treatment measures such as the use of contact killers (Sterifab, Bedlam, Phantom aerosol, etc.), steam, encasement of beds, etc., making it hard to know what specifically is working.

__________________________________________

I thank Dr. Palli and Dr. Potter for so kindly taking the time to answer my questions.

This is most definitely bad news; however, we have been expecting as much and indeed researchers at the University of Kentucky have been warning of widespread pyrethroid resistance for years. Having this confirmed, on this scale, is still a blow. The urgency of having options to enable the most basic resistance management countermeasures should be obvious.

Perhaps I should remind you that today is the last day of the public comment period for Ohio’s Section 18 propoxur exemption request under consideration by EPA.

  1. 4/10 – the article has been published: Zhu, Fang, John Wigginton, Alvaro Romero, Ali Moore, Kimberly Ferguson, Roshan Palli, Michael F. Potter, Kenneth F. Haynes, and Subba R. Palli. 2010. Widespread distribution of knockdown resistance mutations in the bed bug, Cimex lectularius (Hemiptera: Cimicidae), populations in the United States. Archives of Insect Biochemistry and Physiology 73, no. 4: 245-257. doi:10.1002/arch.20355. []

{ Comments on this entry are closed }