Why sometimes farmers have to tranfer pollen by themselves?

Farmers may need to transfer pollen themselves when natural pollinators, such as bees or wind, are insufficient due to environmental factors or the specific needs of certain crops. This manual pollination ensures higher fruit set and crop yields, particularly for plants that require cross-pollination or in controlled environments like greenhouses. Additionally, farmers may intervene to control the timing and efficiency of pollination, especially for valuable or specialty crops.