- Plant an entire field of deadly poisonous plants.
- Introduce a bee nest.
- Let the bees collect the pollen.
- Collect the honeycomb.
Back in ancient times, toward the end of the Roman Republic, the great General Pompey led an army into Asia Minor where he faced the rather competent local ruler Mithridates. One of his detachments passed through Trebizond, or at least, they tried to. The locals knew that the honey thereabouts was poisonous, due to the large number of toxic rhododendrons in the area. But the Romans didn't know that. They ate the honeycomb and became ill. The locals immediately attacked and slaughtered the Romans.
Here's what it says in Strabo's Geography (from the Perseus version):
The Heptacomitae [those are the locals] cut down three maniples of Pompey's army when they were passing through the mountainous country; for they mixed bowls of the crazing honey which is yielded by the tree-twigs, and placed them in the roads, and then, when the soldiers drank the mixture and lost their senses, they attacked them and easily disposed of them.
Alas, if only they had paid attention to the classics. Three hundred and fifty years earlier, the famous mercenary captain Xenophon had written about his men falling ill after eating honeycomb in the same area.
Here's what Xenophon had to say:
Now for the most part there was nothing here which they really found strange; but the swarms of bees in the neighbourhood were numerous, and the soldiers who ate of the honey all went off their heads, and suffered from vomiting and diarrhoea, and not one of them could stand up, but those who had eaten a little were like people exceedingly drunk, while those who had eaten a great deal seemed like crazy, or even, in some cases, dying men. So they lay there in great numbers as though the army had suffered a defeat, and great despondency prevailed. On the next day, however, no one had died, and at approximately the same hour as they had eaten the honey they began to come to their senses; and on the third or fourth day they got up, as if from a drugging.