Pesticide Use: More than 78 million households in the United States used a pesticide or herbicide. Herbicides were the leading type of pesticides. 85 to 90 million pounds of the herbicide glyphosate was used In 2001. 2,4-D was the most widely used herbicide in both the home and garden,8 million pounds used/yr. http://www.epa.gov/oppfead1 1999 Pesticide Use: More than 78 million households in the United States used a pesticide or herbicide. Herbicides were the leading type of pesticides. 85 to 90 million pounds of the herbicide glyphosate was used In 2001. 2,4-D was the most widely used herbicide in both the home and garden, 8 million pounds used/yr. http://www.epa.gov/oppfead1 1999