Tag Archives: Diatomaceous Earth

How to Fight Bedbugs: Non-Chemical Cures

Below is a great video about Tim McCoy, who runs the Dodson Urban Pest Management Lab at Virginia Tech. He believes that bedbugs are an epidemic that will get worse before it gets better. McCoy’s lab is at the forefront of research on pesticide resistance and finding new control methods for bedbugs, like Diatomaceous earth.

By Shelby Brown

RICHMOND, VA (WTVR)-Bedbugs have become a huge problem for thousands of homeowners and businesses in Virginia.

Bedbugs are on the rise all over the country and if you think they don’t affect you, experts say chances are you likely know someone who is affected.

Tim McCoy, who runs the Dodson Urban Pest Management Lab at Virginia Tech, tells CBS 6 he considers bedbugs to be an epidemic.

He predicts it will get worse before it gets better.

McCoy’s lab is at the forefront of research on thegenetics of resistance and finding new control methods for bedbugs, like Diatomaceous earth.

That’s a dust that dries out and kills bedbugs.

“We’re able to test products and that you see on the internet and find out if they work and then get that information out to the public,” McCoy said.

When it comes to bedbugs, McCoy believes the biggest myths people have are that they transmit disease and they’re considered a filth pest.

“The myth is that they’re associated with dirty, squalored conditions and that’s not true. Bedbugs want to live with people. We are their food source, so it doesn’t matter what economic range you’re in, bedbugs can be a problem,” said McCoy.

He showed us a colony of bedbugs that he collected from a Richmond group home. McCoy pointed out how quickly they reproduce. He’s also amazed by their high level of resistance.

“These are insects we put on a pesticide treated panel, leave them there for two weeks and they’re still alive. That is an unbelievable level of resistance because most insects would be dead in a matter of hours” said McCoy.

He explains that the bedbugs we’re dealing with today have built up super resistance and getting rid of them is tricky. In his opinion it’s too difficult of a job for any homeowner to do alone.

“This is a pest that is growing in prevalence and we don’t have specific chemistries to control them. At this point we are not going to get any new chemicals or pesticides approved. What we’re going to have to rely on is more training and professional pest control operators treating them” McCoy said.

Jim Lincoln, a General Manger for Orkin describes the magnitude of the bedbug problem in our area. “I’ve been with Orkin for 31 and a half years and for the first 25 I only dealt with the bedbug issue one time. Now, it’s an everyday occurrence,” said Lincoln.

“Orkin has released the number of bedbug treatments in the Richmond andPetersburg area and that ranks 14th out of all of the cities in the United States,” he added.

Pest control expert Eddie Connor says his Northern Virginia company, Connor Pest Protection, uses specially traineddogs to fight bedbugs.

“They’re going to tell us where the activity is and where they’re detecting odor, the presence of live bedbugs or the eggs. This actually helps us focus into those areas so we can give more effective treatment,” said Connor.

As we watched their dog Willie demonstrate his uncanny sense of smell, we realize how easy the K9 makes the job for Connor and his crew.

They show us the dog’s abilities by strategically placing bedbugs around the room in hidden areas. It only takes seconds for Willie to give his signature alert signal, so his handler knows he’s on to something.

Eddie tells us K9 pest detection is one of their greatest tools. He also shows us how highly effective heat treatments are.

In the same training facility he cranks up some massive heaters then uses fans to move heat to every crack and crevice of the room. The bug’s tipping point? 122 degrees. On a pillow we measure the temperature at 129 degrees and when the bedbugs hit the surface of it, they die within four seconds.

A typical heat treatment done by Connor’s lasts three to four hours at about 130 degrees. He says in addition to the heat treatment, follow up visits are critical.

Connor also tells about some other items homeowners can get to battle bedbugs. Like mattress encasements that can be used to cover mattresses in the home.

“It takes all the hiding spots away from the mattresses. Basically you encase the mattress. Zip it up tight, it does breathe and it’s water resistant. If any bedbugs are inside they can’t get out. It saves money. It’s early detection because if you find the fecal matter on the mattress encasement or the actual bug it helps you make it more blaring when you change the sheets” explained Connor.

He also shows us a heating chamber that’s portable. Connor says the Pack Tight product has become pretty popular with his clients. That product allows people who are concerned about bringing bedbugs to their home to put clothes, books or other items in the heater to zap any potential bugs.

Connor says in one case they worked on, clients had bedbugs in their home after they checked out some library books and left the books on a night stand in their room.

He explains that the bugs want to be close to their hosts at night, so they can feed, and once they’re done they retreat to nearby areas, including behind headboards, on chairs, even cracks in the wall.

Experts say while they’re a pesky problem to have, bedbugs are no cause for panic. They’re highly treatable with the right people, and the right noses on the job.

Biting Back Against Bedbugs

by Carly Fiske
“Don’t let the bed bugs bite!” It’s a saying we’ve all heard before, but many of us have never actually seen one of the pesky critters crawling through our beds. Well it seems that privilege will soon be gone. The EPA announced in 2010 that bed bugs are a growing problem in the United States, and they also are reminding citizens that overuse of pesticides against them could contribute to the problem.

bed bug 300x201 Biting Back Against BedbugsThe spreading bed bug issue brings to light a long-overdue debate about pest management practices and the overuse of pesticides. The problem reveals the importance of sustainability in chemical pest treatments.

Bed bugs, once considered an outdated problem, are back with a vengeance. The problem is well-known in New York City where a shocking percentage of apartments have bed bug outbreaks. The creatures are rearing their heads in bedrooms across the nation, but why are the pests suddenly out of control? It seems that overuse of pesticides in the last century has backfired on us and created highly-resistant populations undeterred by traditional pesticides.

The blood-sucking, nocturnal creatures were common throughout the U.S. prior to World War II when the widespread use of DDT nearly wiped them out completely. It appeared that the blood-sucking creatures were long gone. But now scientists think that populations have grown resistant to DDT and similar pyrethroid substances that are used in traditional bed bug pesticides.

Pyrethrum chemicals are derived from the chrysanthemum or are synthetically created, and kill off bed bugs by destroying their nervous system. The Centers for Disease Control as well as the Environmental Protection Agency now recommend limiting use of these chemical pesticides out of fear that highly-resistant populations may continue to grow and make certain pesticides useless.

So what are we supposed to do, if not douse our beds with harsh chemicals? The answer is the same as the answer to many ecological and environmental problems in our world: use a holistic approach and focus on balance. Eliminating populations with chemicals will only serve to create highly-resistant populations, and once that happens, an outbreak could be completely unstoppable.

Diatomaceous earth products work without poisoning insects, so they are less prone to creating resistant populations. They are made up of fossilized diatoms with a sharp texture that cuts bed bugs and dehydrates them, killing them on contact or through consumption. The EPA recommends using these types of non-chemical insecticides instead of harsh chemical options.

Adult Bedbug Biting Back Against BedbugsLike all forms of pest control, the best form of bed bug management is one that uses a holistic mindset. The EPA recommends an Integrated Pest Management (IPM) approach with a combination of house-cleaning habits, direct removal and heat treatment techniques to control bed bug populations. Use a vacuum suction wand in cracks, crevices and seams, and monitor populations in order to manage them. In combination with occasional use of chemicals, these techniques keep bed bugs in check.

IPM is an ecologically-sound approach to pest control in agricultural fields and homes alike. It focuses on control rather than eradication and is much more sustainable than excessive chemical treatments. Wiping out entire populations is simply not possible, according to this approach, and is ecologically unsound. Maintaining acceptable, low population levels is the only realistic way to manage populations, experts say.

Prevention, monitoring and mechanical control are some of the key aspects of IPM. By looking for signs of pests, controlling the cleanliness of the environment, and removing bugs directly, populations are kept in check. In agricultural systems, beneficial pests that consume unwanted pests are another component of IPM, as is responsible use of pesticides with a limited number of applications.

Although the growing bed bug problem is a disturbing problem for everyone, it has turned a necessary spotlight onto the issue of excessive pesticide use. The need for an IPM strategy reveals the importance of an integrated approach to controlling insects, whether in our bed sheets or our strawberry fields. Complete eradication is impossible. But by working within the ecological system and using balanced control mechanisms, a consistent low population can be maintained – the key to sustainability.

This is a principle that is easily applied to many ecological issues. How can we gain control of an environment without creating imbalance? The answer is using awareness and holistic understanding of a problem, as well as the knowledge that overly-aggressive tactics are not sustainable and may eventually backfire on us.

Bedbugs: Bake them before they bite

bedbug close up 300x210 Bedbugs: Bake them before they biteBelow is a great video and article by CNN London that shows a bedbug dog at work and gives an overview of heat treatment for bedbugs.  Heat treatment is a very effective tool for killing bedbugs, but it is important to use heat treatment for bedbugs in conjunction with other methods such as:
  • wiping down walls and baseboards with rubbing alcohol and then soapy water to kill and dislodge eggs
  • daily vacuuming
  • bagging belongings to prevent cross contamination
  • thoroughly washing and using the heat cycle on your dryer to clean all clothes and sheets
  • lightly dusting diatomaceous earth on surfaces


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bedbug size2 Bedbugs: Bake them before they biteBy Ayesha Durgahee

London (CNN) — Mention bedbugs and the natural reaction is to shudder and start scratching.

But one who doesn’t get the heebee jeebees is Lola — canine detective and professional bedbug catcher.

Trained at the Pepe Canine Academy in Florida, the two-year-old Jack Russell is all that pest controller Mark Astley needs.

With Lola’s heightened sense of smell, Astley can identify bedbugs and their eggs without having to rely on the telltale signs — feces that appear as tiny black spots that smear when wiped.

Bedbugs like to stay close to people — “anything that is in close proximity to where we are or where we sleep,” explains Astley, owner of Trust K9.

“Seventy percent of bedbugs tend to be quite close to us, and then within 5 foot, we’ve got (another) 23%, research shows,” he says.

The remaining 7% lurk in the extremities of a house, he says, including corners, in the fabric of the house, in the carpet, behind baseboards, behind wardrobes, and in drawers.

bedbug example picture1 300x168 Bedbugs: Bake them before they biteThe house he is investigating in Essex, England is empty. The tenants moved out when the first bedbugs appeared, leaving the landlord, who wants to remain anonymous, to deal with the problem.

Wagging her tail and pulling on the leash, Lola is ready to work.

Astley gives the command “Find your Bs” and Lola starts sniffing.

It is in the main bedroom that Lola strikes gold. Next to the wardrobe, she steadies herself with her hind legs and furiously scratches the edge of carpet by the baseboard with her little paws.

“Good girl! Good girl!” Astley shrieks and rewards her with biscuits. A few chomps later, Lola is off again.

Now that key areas have been identified, Astley can have a closer look to assess how bad the problem is.

“I’m looking for either bedbug eggs … feces — black spots, take a finger over it and see if it smears. Immediately looking along here … there’s nothing obvious here … it could well be they are burrowed deep,” he says. “Ah! There you go. There’s a bedbug.”

The size of this blood-sucker is surprising — slightly bigger than an apple seed.

Bedbugs go through five stages of its life, shedding their skin twice in each stage, as they fatten up with blood.

bedbug eggs 300x208 Bedbugs: Bake them before they biteThey can lay up to 500 eggs in their lifetime. Bedbugs can take 10 to 14 days to hatch and will lay dormant, in some cases up to a year, if they can’t detect anyone in the room breathing.

It is the carbon dioxide we exhale that alerts them to come and bite us.

Pest control companies like Trust K9 are seeing the number of jobs rocket every year specifically to treat bedbugs.

Rentokil has seen a 24% increase in bedbug exterminations in the United Kingdom over the past year.

“It’s becoming more widespread. In recent years bedbug numbers have gone up between 100-500% in North America, in Europe and in parts of Asia and Australia” said Rowan Hooper, news editor for the New Scientist magazine.

“Perhaps the reason they’re becoming more widespread is they’ve evolved resistance from the normal pesticides that have been used to kill them off,” he speculates.

The global resurgence of bedbugs is also related the rise in second-hand clothes and furniture shops, and an increase in travel to and from infested regions, typically along the old Silk Route to the far east.

In the United States, the problem has become bad enough that the Environmental Protection Agency has convened two summits on the issue. The crisis is not likely to subside any time soon, scientists said at the most recent one, earlier this month.

Astley gets rid of bedbugs by transforming the infested house into an oven. There are no chemicals involved — just very hot air.

That has the advantage of killing all of them, including their eggs, he says.

bedbug full size and young1 300x209 Bedbugs: Bake them before they biteWorking with Canadian company DRYAIR, he heats the house to 134 degrees Fahrenheit (67 degrees Celsius) for two to three hours. Nothing can hide — bedbugs, lice, mites, cockroaches, he says.

Starting at $2,000 for a two-bedroom house, heat treatment is faster and more expensive than chemical sprays, at $480.

Chemical treatment is effective but takes up to 21 days to break the life cycle of bedbugs because the chemicals cannot kill their eggs.

With heat, an infested room or house can be treated at 8 in the morning and be bug-free by the evening, Astley says.

That is good news for hotels who do not want to lose money or their reputation.

“We do get quite a lot of reports of bedbugs,” says Emma O’Boyle from the travel website Tripadvisor.

“Of course it’s the hotelier’s responsibility to sort it out — and quite often if they notice a review that says ‘we’ve experienced bedbugs,’ they have the opportunity to go on there do a right to reply and we always recommend that,” she says.

Announcing that they have had the hotel fumigated can help reassure potential guests, she adds.

If you type in “bedbugs” on Tripadvisor, more than 42,000 results come up — hotel reviews from disgruntled guests.

The site, which has more than 40 million hotel reviews, also brings out a “dirtiest hotels” list every year, naming and shaming the worst offenders from North America, Europe, Asia and India.

One hotel in the dirtiest European Hotels 2011 list had the comment: “25 bedbugs between the two of us.”

Bedbugs can spoil any holiday or business trip but there are a few myths that need to be dispelled.

“The biggest myth is that you’ve got to be a dirty person to get bed bugs — it’s absolute rubbish because bedbugs don’t discriminate between rich or poor, dirty or clean. I know for a fact five-star hotels suffer from them, right down to your bed and breakfasts,” says Astley, adding he has treated seven hotels in London so far this year.

And it’s very easy to pick them up, he warns.

“We put something down… in a hotel room or somewhere we’re staying that has a high occupancy or common turnover, and they climb on. They’re like little hitchhikers,” he says. “I’ve come out of a hotel with Lola and she’s walked passed the baggage in the lobby and spun round and started alerting on somebody’s luggage.”

If it feels like your hotel room has some unwelcome guests, have a look around the corners of the mattress and the bed frame for those “felt-tip” black spots and rub your finger over them to see if they smear.

If there are no other rooms available to move into, then the safest place for you and your luggage is the bath — bedbugs don’t like shiny surfaces.

Diatomaceous Earth: Vanguard of Stored Agri-Products Against Destructive Pests

diatomaceous earth pest control Diatomaceous Earth: Vanguard of Stored Agri Products Against Destructive PestsThe porous property of Diatomaceous Earth has earned a perfect spot in many industrial applications.  Its suitable use as filter purifies wines, beer, fruit juices, pharmaceutical products, solvents, food additives, etc.  Besides this, DE is highly effective as a vanguard for pests.  Ancient civilizations already exploit the benefits of this mineral.  Ancient China had been using DE 4000 years ago.  The Aztecs in Mexico have been protecting their grains from pests using the same mineral.  Insects slowly die when they brush with the DE material as its extremely dry property absorbs the waxy layer of insect cuticle, which result to extreme dehydration of the insect.

Diatomaceous Earth is almost harmless to mammals.  It is safe to mix with food.  This siliceous mineral in a fine powder form is commercially available worldwide to be used as stored grain protectant.  Countries like USA, Canada, Germany, UAE, Saudi Arabia, Australia, Brazil, China, Japan, Indonesia, Philippines, and many more have all been commercially distributing DE products to kill or deter pests that attack grains.

Insects vary on how long they can last to DE, but the most vulnerable are insects with flat bodies, with body hair, thin cuticle, low-melting bodily grease, and those thriving on dry grain.  Insects that are most vulnerable belong to the genus Cryptolestes (Flat grain beetles).  Less vulnerable are the Sitophilus spp. (i.e. Rice Weevil, S. Oryzae), then by genus Oryzaephilus (i.e. Sawtoothed grain beetle, O. Surinamensis).  Going further to the lesser sensitive insect are the Rhyzopertha (i.e. Lesser Grain Borer, R. Dominica).  The most tolerant belong to Tribolium spp. (T. Confusum, the confused flour beetle).

Some places in Africa, traditional farmers mix sand or ash on stored grains to ward off insects attracted to grains.  The principle behind is to use the abrasive properties of the sand/ash material to brush against the cuticle of insects as they crawl on sand or ash-filled grains.  In the same sense, DE dust is mixed with stored grains to ward off insects.  But there are factors to consider that will influence effectiveness.  One is climate condition and the other is the cohesion of DE material to the commodity.  Reports showed that DE did not stick as much to maize product as did to wheat or sorghum.

In Tanzania, Africa, the most destructive insect that swarm on stored grains is Larger grain borer (Prostephanus truncates).  It is responsible for 40 percent of grain losses.  This insect is not endemic in the said region, but is believed to have originated in Central America arriving in Africa in food shipments during 1980s.  This insect has spread to East, West, and Southern Africa.

Application of DE on Stored Grains

diatomaceous earth grain control 300x193 Diatomaceous Earth: Vanguard of Stored Agri Products Against Destructive PestsDiatomaceous Earth is best applied and recommended on newly harvested, dry, and non-infested grains.  Winnowing should precede prior to DE mixture with the grains.  Ideal condition for best DE protection is a low relative humidity of 50 percent rh.  Relative humidity influences how fast insects losses bodily fluid.

Choose a storage place away from winds with smooth and even floor.  Clean the floor from any existing debris.  Mixing of Diatomaceous Earth with the grains may be done on the clean floor.  Make certain that you wear a mask to protect yourself from inhaling the dangerous DE dust.  Be sure that proper or suitable mask is used to serve as long-term protection when regularly applying DE dust on stored commodities.

The Steps:

  • diatomaceous earth pest grain control 300x213 Diatomaceous Earth: Vanguard of Stored Agri Products Against Destructive PestsPut 50 kg of grain on the cleared floor.
  • Sprinkle the correct amount of DE (refer to product specification) on the heap of grain on the floor.
  • Using a clean shovel, slowly scoop the grains upward covering the applied DE.
  • Gently mix together the grain and DE dust by shovelling onto one side to form a new mound of mixed grain and DE.  This is the 1st mixing.
  • Shovel again the new mound of grain.  This is the 2nd mixing.
  • Shovel back again onto one side.  This is the 3rd mixing.
  • Place the treated grains inside a bag, then sewn up ready for storage.
  • The treated grains can now be piled inside the storage facility.

There are many advantages of using DE in treating stored grains.  The major advantage is that it is non-aggressive to health and environment.  The extremely low toxicity of DE is categorized by the EPA as “Generally Regarded as Safe.”  When mixed at 0.1% w/w, DE is effective on most insects.  DE is also easily removed during processing, about 98%.  Diatomaceous Earth has the tendency to reduce the flow effect of grains. Therefore, it is applied only to the top and bottom layers of the stored grains.

To read more about uses for diatomaceous earth:

Using Diatomaceous Earth for Pest Control

Uses for Food-Grade Diatomaceous Earth Around the Home

What do Toothpaste, Shoe Polish, and Cat Litter Have in Common?

Bedbugs Making Big Comeback

propoxur 300x190 Bedbugs Making Big ComebackDecades after the widespread spraying of DDT was banned, bedbugs have made a big comeback.  In the USA, at least five states have called on the Department of Defense pleading for money to address the bedbug issue. The state of Ohio is so desperate that it petitioned the Environmental Protection Agency to allow in-home use of a pesticide called Propoxur, which was banned out of concern for its effect on children. That request was denied, and the problem persists.

Nationwide exterminator Terminix reports that New York and Philadelphia have the most severe infestations and four cities in Ohio are landed on the top 15 list for bedbug infestations.

terminex 269x300 Bedbugs Making Big Comeback“80-90% of the phone calls we get every single day are related to bedbugs,” says Terminix.

Since 2006, the money spent eradicating bedbugs has more than doubled, topping $250 million dollars.  Bedbugs do not discriminate and bedbugs can be found in many high end hotels and apartment buildings.

Bedbugs have made a major resurgence because they’ve developed a resistance to most pesticides. Experts say there is an effective weapon – a chemical called Propoxur – that keeps killing for up to five weeks. The EPA says the chemical could be dangerous to children. The government recently said no more could be manufactured for use inside.

“As of a week and a half ago, I ordered the last 170 cases that my supplier was able to find,” says Alonso.

No state is tackling this plague as aggressively as Ohio. It’s even petitioned the EPA for permission to continue using the pesticide Propoxur indoors as its last best option. Even as they await approval, time and stores of the toxin are running out.

“The other options of newer technologies, newer chemicals that will come down the pike, those things will take a long time. We need short term solutions,” says Alonso.

Bedbugs can live up to a year. Each female can give birth to as many as 500. Alonso says unlike roaches or ants, these insects feast on you, which is why they settle on beds, couches, and recliners.

Columbus grandmother Delores Stewart has been fighting the pests for nearly a year. “I don’t want to go to bed. I don’t want them crawling all over me,” she says.

The EPA is standing firm on the ban of Propoxur indoors but offers these suggestions: seal cracks and crevices along baseboards; apply a dusting of diatomaceous earth to all public areas and bedbug prone zones; remove clutter; use a special mattress cover; dry clothing and sheets at high temperatures.

“Don’t let them get out of control because once you let them get out control you can’t handle them,” says Stewart.

Scientists say the perfect parasite never kills its host but as millions of Americans have found out, it can drive them crazy.

Read more about Bedbug Infestations:

CBS News Ranks 15 Most Bedbug Infested Cities

Bedbugs Know How to Combat Pesticides

Tales of a Bedbug Refugee