Beekeepers who had unsuccessful wintering systems, had placed a half of 1 1/2 " tube for ventilation between inner cover and the top brood chamber. This tube is about 8-12" long. Snow was to high. It drifted inside the hives and melted. Bees drowned in the box. When beekeepers checked the bees, bees were wet and had green mold. They have not seen something like this in previous years. Beekeepers who left a ventilation hole in the inner cover and it was staggered with the hole in winter wrap did better.
Medhat
----- Original Message -----
From: allen [mailto:[log in to unmask]]
Sent: Sunday, April 24, 2011 09:10 PM
To: [log in to unmask] <[log in to unmask]>
Subject: Re: [BEE-L] ALL My Bees Died
> One new thing, I learned this year that is some wintering systems could not
> withstand our winter. Those beekeepers have to improve the system.
Can you elaborate about the unsucessful systems, or on things that the
successful systems have in common?
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