Final answer:
The nurse should develop culturally sensitive health education materials and interventions to promote the success of the healthcare program.
Step-by-step explanation:
The action that the community health nurse should take to promote the success of a healthcare program designed to address the spread of communicable diseases among migrant farm workers in a rural community is to develop culturally sensitive and appropriate health education materials and interventions.
These materials and interventions should consider the cultural values and beliefs of the migrant farm workers and aim to educate them about behaviors that put them at risk for communicable diseases, such as hand hygiene, safe food handling practices, and proper use of personal protective equipment.
By advocating for practical disease prevention while respecting the personal views and cultural values of the migrant farm workers, the nurse can promote the success of the healthcare program.