Vol. 15—1961 - NorthEastern Weed Science Society

361.
The most e.ffective chemicals in reduc1llg the weed pOpulation were
Neburon and Eptam. These were followed by 2,4-D amine, Sinox P.E"AC~ L-685,
ACPL-688, MoPamine, 4(2~4-DB) and ACPL-119·
Except for the Fenuronand 2, 4-D plots, there was no evidence of aI:\Y
effect on the emergence and ~stablishme~t of the alfalfa seeding.
.. . . :
The best stands of seedling alfalfa were obtained on the Neburon,Eptam
and Sinox P.E. plots, with Neburon being exceptional. Throusllout the growing
season, there was no weed growth, oats or legume 4evelopment on the Fenuron
plots.
Observations during the growing season did not show any injury to the oats"
pap.1cle development or maturd:ty. The yield of oats and the ir test weight were
affected.
SUMMARY:
Pre-emergence treatments show promise for the control of early germinating
weeds in oats and the associated legume seeding. The only species
not controlled was ragweed (Ambrosia artemisiifolia), and the perennials such
as: Ground Cherry (Physalis subglabrata), Flower ..of-the-Hour (Hibiscus trionum)
Horse Nettle (Solanum ~arOl1nens~), andquackgrass. (AsroPyron repeDS).
Effeotive weed controlan