Campaign to eliminate mosquitos (19 май 1900 г. – 20 май 1969 г.)
Описание:
Malaria being carried by mosquitoes caused the use of many different tactics to kill mosquitos, such as DDT and other pesticides. Due to the environmental effects by DDT and other pesticides the program was shut down by WHO.Добавлено на ленту времени:
Дата:
19 май 1900 г.
20 май 1969 г.
~ 69 years