A mulch of municipal solid waste compost at 224 t.ha-1 was compared wi
th glyphosate sprays and a nontreated check for weed control in vegeta
ble crop bed alleys during Spring and Summer 1992. In both experiments
, there was a significantly lower percentage of weed coverage in the c
ompost mulch and herbicide spray plots than in the control plots. Weed
control in the compost and herbicide treatments was similar. In the s
pring experiment, tractor tire traffic through the alleys reduced weed
growth in all plots by 62% and 44% at 16 and 73 days after treatment
initiation, respectively. These results suggest that municipal solid w
aste compost may have potential as a viable mulch for weed control in
vegetable crop alleys. Chemical name used: isopropylamine salt of N-(p
hosphonomethyl) glycine (glyphosate).