The District has been subdivided into 19 distinct areas that we call “zones”. During the active mosquito season, about 5 of these zones will be sprayed on a typical night. Weather permitting, this allows for the entire district to be sprayed weekly. This can allow for a limited number of zones with especially high numbers of mosquitoes (or mosquito- borne virus activity) to be sprayed twice within a week.
The following map shows which zones have been scheduled to be sprayed that evening: http://www.tangipahoa.leateamapps.com/PublicMap.php