Vol. 16—1962 - NorthEastern Weed Science Society

Where the weed eompleJl;conststs of annual grasses and of certain
annual broadleaved WEed species,DACTHAL herbicide can be economically utilized
in commercial nursery plantings.
It is evident that economical control of broadleaved weeds such
as ragweed, hOr!36l1ettle and smartweed cannot be obtained with DACTHALat the
rates used in ,these. test,s. This confirms previous findings of their lack of
susceptibility to DAC,THAL. '
It was also demonstrated from the data that the wettable powder
and G-l.5 formulntions were more effective than the!l-5 granular because
optilnum coverage of the treated areas with the higher concenbrated granular
formulat,ion coul.d not be o~tained."
211
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