Subject: | |
From: | |
Reply To: | |
Date: | Sat, 22 Feb 2003 14:55:54 -0500 |
Content-Type: | text/plain |
Parts/Attachments: |
|
|
Max Watkins writes:
many trials in different countries [with beekeepers, universities and
beekeeping institutes] show the efficacy of Apiguard to be an average of
93%; sometimes lower, especially in cooler climates or periods and often
higher at temperatures above 25C.
PB:
Did anybody else notice this? Max writes "average 93%, sometimes lower".
What is this supposed to mean? Has he ditched the lower figures to keep from
lowering the average?
I have read at least a dozen papers on thymol so far and the effectiveness
seems to range from 50% to 98% mite kill.
There are many references to heavy bee mortality. One study said colonies
treated with thymol in the fall had 3/4 less brood in April, though they had
"caught up" by May.
Now the term 3/4 less is vague; I would rather read 25% as much brood, if
that is what they mean. But if you have pollination contracts in April --
having your hives at 2 comb strength instead of 8 could be a real problem.
I want to know if these problems have been worked out.
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
BEE-L subscribers are reminded to read and follow the
guidelines for posting, which are available online at:
http://www.honeybeeworld.com/bee-l/guidelines.htm
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
|
|
|