Stanislaus County Pesticide Summary 2001
Despite rapid growth in population in Stanislaus County throughout the past 11 years, the amount of harvested almond acreage has slowly increased. Figure 4.1 shows the trend of harvested acreage in Stanislaus County.
Organophosphates
Organophosphate use in Stanislaus County has decreased substantially from 1990 to 2000. OP use has decreased by a factor of five since the high of 1993 despite the steady increase in almond acreage. As stated above, the information regarding pesticide use was accessed via the California Department of Pesticide Regulation’s website at www.cdpr.ca.gov. Figure 4.2 shows the trend of organophosphate use as compared to the harvested acreage in the county.
Carbamates
Pounds of carbamates applied per acre in Stanislaus County have fluctuated throughout the years but have shown a steep decline since 1997, with almost none used in 2000. Figure 4.3 shows the trend of carbamates in Stanislaus County from 1990-2000.
Pyrethroid
Pyrethroid applications in Stanislaus County have risen since 1990, but have decreased since 1998. Figure 4.4 shows the pyrethroids used in pounds per acre in Stanislaus County.
Bt
Bt use per acre in Stanislaus County appears to have peaked in 1995 and then has shown a steady decline in use. Figure 4.5 shows the trend of Bt use per acre in Stanislaus County.
