Vol. 16—1962 - NorthEastern Weed Science Society

PRE-E~mRGENCE
WEEDCONTROLTEST IN REDBEETS
S. A. Anderson(l), L. E. Curtis(2), and Alexander Zaharchuk(2)
159
In 1960 several herbicide treatments looked promising for the cortrol
of weeds in red beets. The experiment~ reported in this paper
are a continuation of last years work. In both experiments total
yields and grade y~elds were obtained to determine the effect of
treatments on yields.
Procedure
Expt. I was conducted on Ontario silt loam soil at Gorham, N. Y.
Detroit Dark Red beets were planted on June I, 1961. Tillam was
applied and worked into the soil with a garden cultivator on May 25.
Pre-emergence treatments were applied within two days after planting.
Herbicides were applied overall except for the two high rates
of Solubor, which were applied in an 8 inch band centered over the
row. Sprays were applied with a knapsack spayer equipped with a
pressure gauge and six foot boom. Granular applications were made
with a special small hand-powered duster.
Weeds were r,smoved by hand from the check plots before mid-July in
anticipation of yield performance in relation to any possible reduction
or depression of yield caused by chemicals.
Expt. II adjoined Expt. I and conducted on Ontario silt loam soil
at Gorham, N.Y. Tillam was applied on ~~y 25, 1961. Detroit Dark
Red beets were planted on 5/25{61 and on 5/28/61. Plots in Experiment
I and II were 6' X 30' that were randomly replicated 3 times.
Tillam was worked into the soil immediately 'following applicat~
with a garden tractor to an estimated depth of 2-4 inches. The soil
was prepared for the second planting by tilling with a garden cultivator.
Results
Expt. I Table I gives the results of weed control, beet effect,
total yield, and size grade yield. Each rating for crop and weed
control represents an average of the three replicates. Total yields
and grade yields also are averages of three replicates. This is
also true in Expt. II.
Expt. II Table 2 gives the results of weed control and beet effect.
Discussion
Expt. I Treatments'worthy of note from the standpoint of weed control
and lack of beet injury are as follows: Tillam pre-plant at
4-6 Ibs. E. C.; Tillam granular at 3 Ibs.; Solubor at 20-40 Ibs. of
elemental boron; Vegadex at 4 Ibs. and ACP61-81.