| description: | Aircraft Sprays Insecticide Over The Tuxedo Area Of Winnipeg. This Type Of Spraying Can Be A Preventive Measure During Mild Or Late Winters On Areas Likely To Form Puddles After Snow Melts. This Was Used With Pesticides Such As Ddt Then Legal To Use, But With Extremely Poor Results. It Was Abandoned Long Before Ddt Was Outlawed. Photo By And Courtesy Of Hugh Allan. (4x5 Neg.) |