This season has been a bad one in Taiwan for varroa mites and my teacher gave me some product to treat my hives. Brand name Gubitol, active ingredient 1-naphthyl n-methyl carbamate. It is mixed with water and sprayed directly onto the bees.
Does this ring any alarm bells for anyone?
I did a google search and it is bayer's Sevin, the infamous bee killing insecticide banned in more than a few countries. He said it was a new product, that he had been using it for about 8 months, and that it wasn't as good as the older chemicals he had used in the past. Most commercial bee keepers here are using it and I can attest to the lack of massive die offs in the hives. It seems to be getting rid of the mites with few side effects.
I am perplexed. Has anyone ever heard of this before? I have a really bad feeling about it...