If we're talking about trying to stem the destruction of wild species here (The problem really isn't about domesticated honeybees), then you should definitely consider the fact that spraying at night won't help those wild bees which are nocturnal [1], nor does your point of view on these address the fact that these pesticides have a degree of environmental persistence. [2] This isn't demonization, it's just straight facts when there's plenty of alternatives out there which aren't feeding the giant agri-industrial complex behemoth.