Thank you for sharing this information with us (although for me it's a bit too late). I would like to share also an item I wrote for our newsletter last December on our unfortunate event with Formic acid<http://www.wageningenur.nl/en/Expertise-Services/Research-Institutes/plant-research-international/show/Beeswur-Formic-acid-failure-during-summer-experiment-in-2013.htm?utm_source=Measuremail&utm_medium=&utm_campaign=> Best regards Coby van Dooremalen *********************************************** The BEE-L mailing list is powered by L-Soft's renowned LISTSERV(R) list management software. For more information, go to: http://www.lsoft.com/LISTSERV-powered.html