On Thu, 9 Nov 2006 07:37:08 -0000, Ruary Rudd 
<[log in to unmask]> wrote:

>Hi Peter,
>
>could you explain why you want to use a vaporiser. I have heard 
several
>experts talks and they all agree that trickling is safer for the operator
>and one person says that he can trickle faster that vaporise.



This was recently discussed at length on the board last month (safety 
and vaporizing vs trickle). In northern areas we can have brood  
present into early winter. Oxalic Acid wether dripped or vaporized is 
most effective when no capped brood is present. Hence if that 
broodless period is in winter when hives are already wrapped 
vaporizing is much easier then unwrapping and opening a hive in 
30-40F weather.

Note: it must be above freezing to use any of the two OA delivery 
methods. 

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