Encyclopaedia Of Insect And Pesticide

Since before 20 BCE, humans have utilized pesticides to protect their crops. The first known pesticide was elemental sulfur dusting used in ancient Summer about 4,500 years ago in ancient Mesopotamia. By the 1Sth century, toxic chemicals such as arsenic, mercury and lead were being applied to crops to kill pests. in the 17th century, nicotine sulfate was extracted from tobacco leaves for use as an...