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Filter: Subject of Pest control
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| Date: | 07 27 1944 |
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| Description: | City of Madison staff demonstrating homemade liquid mosquito sprayer designed by Dr. Bernhard "Dommie" Domogalla, city biochemist. Left to right: LeRoy Joh... |
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| Description: | Men pumping DDT from a tank on the back of a truck to be sprayed into a field. |
| Date: | 06 29 1939 |
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| Description: | Four men use a 150 gallon sprayer and a McCormick-Deering 10-20 tractor to apply pesticide to an orchard. The photograph was taken in Markham, Ontario, Can... |
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