Modern sheep dipping (1960)
Рет қаралды 21,291
10 жыл бұрынA study of the roles of dipping, showering and spraying in the control of sheep skin and fleece parasites, including maggot fly, sheep ked, sheep lice, ticks and mites. Find out more: catalogue.wellcomelibrary.org/....
@nancy-katharynmcgraw2669 4 жыл бұрын
Excellent description & instructions. Was reading a Western themed book, that was about a sheepherder in Wyoming in 1872 & he was buying sheep dip. So, had to look it up. His only choice to buy was Semple's Scotch Sheep dip: strong leaf tobacco & vegetable extracts @ 75 cents/gallon In its concentrated form. Glad the scientists have veers away from dips with DDT. Was very educational to see the parasites & other insects in their growing stages. Loved the music!
@khelomendoza3230 3 жыл бұрын
2021?
Полярная звезда - Kuzey Yıldızı
Рет қаралды 7 МЛН