I’ve been wondering if pollinators will evolve to avoid food crops, thus rather negating the benefits espoused by manufacturers of pesticides.
Consider: they are becoming increasingly unhealthy to use as pollinator food sources. Toxins built into them get concentrated by collecting pollen; oilseed rape gives poor quality honey often leading to nosema; and, bees can recognise different species of flower – they have flower constancy. So, they have the capacity to adapt their behaviour for this.
Stacked against this is the paucity of non-agricultural blossom in the British countryside.