Actually, the State of Vermont Department of Health Website is full of useful information even regarding Powassan Virus (an exceedingly rare disease that has only ever been diagnosed once 14 years ago in Vermont and I don't know enough about the particulars of that case to know if the individual had travelled outside of Vermont or not).
As far as perimeter spraying with Permethrins and then walking around barefoot and being surprised to get a tick, that brings up the discussion of expectations. One has to think about what one is trying to acheive. In order to be able to go out on your lawn without the possibility of getting ticks, you are going to have to eliminate squirrells, chipmunks, rabbits, skunks, mice, rats, possums, raccoons, deer, etc...... from going through your yard.
What about perimeter spraying? Since the chemicals are not species specific, how much collateral damage is going to be caused by spraying chemicals (often permethrins or organophosphates) in the environment as well as possible exposure to humans and possible poorly (or even well) understood long term side effects from chemical exposure.
Yes, the longer a tick is attached, the more chance it has of regurgitating the Borrelia burgdorferi organism into its host. That is what the newer generation of tick (and flea) preventatives for your dog are all about and in my biased opinion, your veterinarian is your best source of information to give you specific recommendations for your pet.
Everyone has to make their own choices about how to address these things and there is much more that is unknown about the physiology of Lyme disease than is currently known. However, if we have realistic expectations and take reasonable precautions then maybe things will be ok.
That doesn't mean that bad things can't happen. Look at EEE and the recent cases in Rutland County. Do we go through and spray the entire region with the associated collateral insect damage or do we try to educate about control and prevention through monitoring, education and precautionary measures. Complicated issues for which there are not easy answers.
From: "Brennan Michaels and John Beattie" <[log in to unmask]>
To: [log in to unmask]
Sent: Saturday, November 9, 2013 7:52:44 AM
Subject: Re: [VTBIRD] Ticks-Good news and bad news
The info on the Dept of health website is definitely much improved. There is still some misinformation. Doctors who are researching Lyme disease believe that this window which was originally 48 hours and now on the website has at least shortened to 36 hours, is actually much shorter. They are believing that the transmission time can be a few hours, so do not be complacent about removing a tick and check at least every day.
The website also says there are two other diseases that deer ticks carry, anaplasmosis and babesiosis. The truth is there are many more, now even including encephalitis and Powassan virus, both of which can be fatal. That info should be on the website along with the other several pathogens that come with Lyme.
Also we spray the perimeter of our yard and have always felt safe on our short clipped lawn which is sunny. But this year in going bare foot I found a nymph attached to my toe. This season for some reason there were many rabbits coming onto the lawn and in reading about that I discovered that rabbits carry and drop nymphs. So horror, now the lawn was not safe. I think people need to be aware of this in the Spring.
On Nov 8, 2013, at 9:17 PM, Bruce MacPherson wrote:
> The bad news is that the population of black-legged tick adults peaks in the fall. I brushed 6 ticks off my clothing last Friday (a warm day) after a walk through the LaPlatte River Marsh NA in Shelburne. Unfortunately (for me), I missed one that attached to my shoulder and had to be removed and escorted to the flush.
> The good news is that most infections are transmitted by nymphs during the summer. Adult ticks are large enough that they can be recognized and removed within the 24-36 hour window after attachment and embedding before infection occurs. The nymphs are tiny and often go unrecognized before they have done their damage.
> The VT Dept of Health has some very good information about Lyme disease prevention that every birder should read. The website can be found at healthvermont.gov then click on Lyme disease.
> Bruce MacPherson
> South Burlington
> -----Original Message-----
> From: Sue Wetmore <[log in to unmask]>
> To: VTBIRD <[log in to unmask]>
> Sent: Fri, Nov 8, 2013 7:29 pm
> Subject: Re: [VTBIRD] Ticks
> Spray for clothing has been effect as a first defense against ticks. It is
> available at our Blue Seal store or EMS store.
> Sue Wetmore
> TestSent from my iPod
> On Nov 8, 2013, at 7:21 PM, Courtney Appleyard <[log in to unmask]> wrote:
>> They have been hideous where I am in Manchester too - my husband had 3 in a
> week and I had one that had to have been on me for days… quite disgusting and
> unsettling! Our doctor has given us refills on the doxycycline rescue dose!
> Our dogs have Frontline but it's doing NOTHING!