Question #1 what type of traps?

Joel Voron   Colonial Williamsburg Foundation
  Conservation Dept.
     Integrated Pest Management Specialist
      Office 757-220-7080
        Cell 757-634-1175
          E-Mail jvo...@cwf.org

________________________________________
From: pestlist@googlegroups.com <pestlist@googlegroups.com> on behalf of JC 
Reardon <j...@saintonge.org>
Sent: Wednesday, April 26, 2023 1:00 PM
To: pestlist@googlegroups.com
Subject: [PestList] Crushed dreams of a world free of MWD*s

[CAUTION: This message originated from outside the Foundation. Do not click 
links, open attachments or take action unless you know the contents are safe]
It seemed too good to be true.  It's warming up, the humidity is way up: moth 
prime time here in New England. Yet not a sign of moths in the most valuable 
wool storage area in the building, clean traps high and low.  Our isolation 
efforts must finally be paying off!

I was actually excited, could I for once focus on actual repairs instead of 
mitigation? A quarterly airing-out without caution tape and quarantine zones?

But wait, what's this suspicious lint drifting to the floor?  That's odd... 
hang on...

<insert jarring horror movie music here>


SOOOO, how's everyone else's day going?  Mine is going... actually, it's not 
going at all, mine has just screeched to a halt.

Put bluntly, I'm not a happy camper in more ways than one.  Not sure if I want 
to scream, tear my hair out, burn the place down, or hide in the janitor's 
closet with a bucket on my head.

I suspect I've just learned a valuable lesson -don't trust the traps - the hard 
way, and I'm hoping the damage is limited to my crushed spirit and already 
overburdened workload, and that the collateral damage to textiles is limited in 
extent.

But now that my faith in the universe of IPM as I know it has been shattered, 
I've got questions:

Question 1: What went wrong here?  What could be the reason behind multiple 
empty traps adjacent to obviously active infestations? Fresh, opened just over 
a month ago, placed both high and low, minimal light, practically zero air 
flow, and one was literally a handspan away from the red item pictured.

Question 2: What would you have done/do to avoid it happening again?  Where do 
you draw the line when it comes to "trust but verify" and indicator traps?  How 
often does this sort of thing happen?

Question 3: How long has it been going on?  At what point should we have caught 
this / was it just the traps that missed it? What size does a population have 
to reach before traps will reliably indicate?  What's the worse case (for us) 
scenario/time-frame for reaching that point, under ideal (for them) conditions?

Apologies for the slew of questions; while I'd like to claim it's out of a 
pursuit of understanding and a dedication to conservation, I will admit the 
length of this email is directly related to just how much I don't want to go 
deal with this.  (Again.)

Your time and any knowledge or wisdom you care to share will be greatly 
appreciated!

Best Regards,

JC Reardon


*MWDs = Moths of Wool Destruction.








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