Rr. Bellinder et al., CARROT (DAUCUS-CAROTA) AND WEED RESPONSE TO LINURON AND METRIBUZIN APPLIED AT DIFFERENT CROP STAGES, Weed technology, 11(2), 1997, pp. 235-240
Redroot pigweed and common lambsquarters control was variable within a
nd between seasons when postemergence linuron and metribuzin were appl
ied one or two times at below-labeled rates to one-, three-, or five-l
eaf carrots, A single, low-rate application of either herbicide at the
one- or three-leaf stage of carrots failed to provide adequate season
-long broadleaf weed control, Two low-rate applications to either one-
+ three- or three- + five-leaf carrots significantly improved control
, Linuron produced little or no injury to carrots regardless of applic
ation timing, Metribuzin-induced injury was variable initially and dec
reased to 10% or less by 14 d after treatment, One application of eith
er linuron or metribuzin resulted in reduced yields of carrots.