Why was Spain able to develop Louisiana into a more successful and stable colony compared to France?

Although Louisiana was granted more extensive privileges than were accorded other Spanish colonies, restrictions were placed on the trade. Louisiana's trade was limited to nine ports in Spain and the passage of any ship that did not possess a captain and a crew that were two-thirds Spanish was prohibited. Trade with Great Britain and Mexico was outlawed and the importation of French wine into the colony was banned. In the words of one historian, Ulloa had inaugurated the uprising that swept him from office because he had issued orders "that threatened the existing customs and economic interests of the colony but was denied the money and military manpower needed to give his authority credibility." Facing a large wave of dissent, particularly from the leading French citizens of New Orleans who acted under the auspices of the Superior Council, Louisiana's local governing body, Ulloa was driven from the colony by an open revolt in October 1768.

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most cajuns resided in acadiana, where their descendants are still predominant