Fremont Park will become greener, but its upkeep will also be more difficult. That’s the trade-off that volunteers and local anti-pesticide activists are accepting in order to turn the Midtown park, at 16th and Q streets, into the city’s first pesticide-free park. City Councilman Rob Fong, the Pesticide-Free Sacramento group and the city’s Department of Parks and Recreation organized the new 2-year pilot program at Fremont Park to use green techniques, instead of pesticides, to destroy weeds. The organizers promoted the program at a press conference Tuesday. If the pesticide-free program is successful, the city hopes to expand it to other parks, Fong said. The Fremont Park program shows