I have been toying with this idea for quite some time.
Remember the BH with 2000++ nests where the owner used this bamboo cutting to form his perfume bottles hung as his perfume garden.
He was so happy with the outcome and until now he is still practicing that.
Every fake nest that is installed just beside the perfume bottle will soon be occupied with a nest.
While envying him with the beautiful results some thing strike my mind.
What if I come out with a fake nest that holds two reservoirs of pheromone on it?
Keep thinking about it but could not come out with the proper solution.
How do I open two reservoirs of perfume bottle on the fake nest which is just about 5"X1"X1"?
Today I finally find a solution.
What I used was those drinking straw, the larger size, and drill two holes just at the corner of the fake nests.
It looks something like this: