I would like all the ladies to wear long dresses to our wedding. Can you tell me the dress code wording for the invitations.
According to Debretts: 'Wedding etiquette dictates that dress codes are not included on a wedding invitation unless guests are required to adhere to an uncustomary code (such as black tie). Any unusual dress code should be explained in the extra information that goes out with the wedding invitations.'
There is no hard and fast rule about wording for a dress code, you could go for 'black tie' or 'evening dress' or 'formal dress'. I would suggest asking your guests to wear 'evening dress', though if you are particularly keen for all ladies to wear long skirts then you should put this, perhaps as follows:
Dress code: Evening dress - skirts long and suits.