You will be amazed at what else your bees find nearby to get pollen and nectar from.
At that point, will that location be better for your bees than where they are?
What do you gain?
Are they paying? Planning on paying in the future? Or is this just an offer of a place to put your hives? You get an outyard they get pollination?
The bees will find every pollen and nectar producing plant, flower, tree and weed in the area.. so depending on what you have to gain, either in goodwill and friendship or in future payment.. maybe try it one spring/summer and see how the bees fare... As Perry said, be warned about the spraying.. Once they start that my bees would be removed.