For some reason, silverfish in particular seem to be immune to boric acid. I have witnessed immense silverfish populations with cellulosic insulation in attics supposedly treated with boric acid.
Diatomaceous earth is a dessicant and works quite well if they plow through it. Drione, a combination of silica gel and pyrethrins, is extremely effective and available inexpensively to the layman. Tom Parker -----Original Message----- From: Samantha_Richert <[email protected]> To: pestlist <[email protected]> Sent: Mon, Nov 1, 2010 3:05 pm Subject: [pestlist] diatomaceous earth vs. boric acid This is a message from the Pest Management Database List. o post to this list send it as an email to [email protected] o unsubscribe please look at the footer of this email. ---------------------------------------------------------- Hello all, I am writing to solicit opinions on the relative merits of using iatomaceous earth vs. boric acid to treat silverfish. Recommendations of pecific products would be great. The storage area in question is a elatively sound finished basement room with two or three silverfish howing up in traps per week. We're looking to move more collections into he room and would like to treat it prophylactically. Also, any opinions n whether we would need to move all of the collections out of the room uring treatment or could we move storage equipment to the center of the oom and just treat the nooks and crannies? hanks for your help! Samantha Richert roject Curator/NPSA Curator of Record WR - Cultural Resources 09 First Avenue eattle, WA 98104 06-220-4130 ------------------------------------------------------------- o send an email to the list, send your msg to [email protected] To unsubscribe from this list send an email to [email protected] and in the body put: unsubscribe pestlist" ny problems email [email protected]
