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7 résultats pour : spraying insecticide

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Spraying insecticide in swamps
UMG22A22_142

Spraying insecticide in swamps

Malaria control unit no. 202 sprays the swamps in Brazil
UMG22A02_343

Malaria control unit no. 202 sprays the swamps in ...

Experts of the U.S. Department of Agriculture, working with the United States Gold Association, have combined an insecticide with a green dye circa 1938 (spraying greens) .
UMG21A21_400

Experts of the U.S. Department of Agriculture, wor...

Helicopter Cropdusting
UMG20A12_074

Helicopter Cropdusting

Cessna Crop Duster
UMG20A12_071

Cessna Crop Duster

Spraying Malathion
UMG20A12_073

Spraying Malathion

Spraying Malathion
UMG20A12_072

Spraying Malathion