I found a almost unknown device for us but which is of a common use in every russian apiary
the "Scion" - (Привой и роевня)
it is a trap or a shelter to catch the swarm as early as possible without (may be) climbing trees.
Can you find it here on the plan?
There are many "designs" but it is commonly settled not far and in front of the hives entrances , one or several of them according to the size of the apiary
The traditional model is a 20-30 cm wide and 30-40 cm plank with one cleat fixed vertically in the middle , more or less rolled with burlap and coated with
alcoholic solution of propolis and flavoured with essential oils (lemongrass, etc.)
as on this blog
the "scion" is then hanged at around 2 to 2,5 m high.
It seems to work !
and the use of one or more old frame is not forbidden
or an old propolised burlap