Two Biological assistants of the Louisiana Mosquito Control Association make a test for mosquito larvae from a specimen taken from a salt march area. Calvin Schulte (left) trims sod samples from grass taken from the marsh. Alfred Poissenot (right) passes a solution made from the sod samples through a funnel and sieve to filter the mosquito eggs from the sod.

Photo is dated 1963.

Photo measures 10 x 8 inches.