>i'm regressing my bees and they're quite infested with this darn varoa.
You have to get the brood nest to 4.9mm or smaller before you'll see the full effect. Have you measured any of the comb? I'd work the larger out as you can.
> i'm gonna sugger them to help 'em
That's a good plan.
> if that won't do, i'll go for harder chemicals, can't help it.
When there is brood in the hive it's difficult to treat them in a way that will make a big impact. You could cut out all the drone comb which will have the most varroa in it.http://www.bushfarms.com/beesvarroatreatments.htm
>anyway what i wanted to know is, how affected can the bees be from my "neighbour" bees?
A lot of mites come in on your bees if they are robbing a hive that is crashing from Varroa.http://www.bushfarms.com/beesnaturalcell.htm#feralbees
See the section on hitchhiking mites.
> everyone around here say that you have to treat your bees this and that way and at the end, everyone add "don't forget to tell your neighbour beek to do the same"
It's a nice idea, but if everyone would quit treating we'd be done with the problem in a year or two.
>so even thou i'll have regressed/small bees can they be overrun by varoa from my neighbour?
> coz i'm really surprised, i did not have almost any varoa last fall, when i treated, at least not many fell off, but now at least one hive is quote infested!
I would take steps soon if you have high varroa counts.
>now tell me all you SC beeks, are you "alone" in that area?
I don't know, but I don't have a Varroa problem. I just have few Varroa in each hive. So far the numbers are small enough the inspector hasn't found one yet.