Обработка пчёл от варроатоза. Как приготовить 3,5% раствор щавельной кислоты от клеща
Материал предоставлен каналом Белорусское Пчеловодство Bee&Ivtodi.
4 months ago 00:04:49 1
4 months ago 00:04:34 2
4 months ago 00:15:27 1
4 months ago 00:15:22 4
5 months ago 00:05:10 1
5 months ago 00:06:53 1
5 months ago 00:09:01 1
5 months ago 00:04:47 1
5 months ago 00:08:56 1
5 months ago 01:20:24 1
5 months ago 00:06:37 1
5 months ago 00:08:23 1
5 months ago 00:19:31 1
5 months ago 00:11:42 1
5 months ago 00:06:28 1
6 months ago 00:25:07 1
6 months ago 00:02:08 1
6 months ago 00:10:07 27
6 months ago 00:02:53 4
6 months ago 00:01:52 1
6 months ago 00:33:46 1
6 months ago 00:02:44 1
6 months ago 00:16:44 1
7 months ago 00:24:44 1
