Vol. 16—1962 - NorthEastern Weed Science Society

392
REPLICATEIII - Portland Route 6A, near intersection of Route 17.
Plots, 2x5 feet, across an e~avated slope, about 10 feet from
the pavement shoulder. Gr~b at time of ' 'toPplication was .8 dense
cover of chiefly red fescues,. some .bl\legras~, some milkweed ~d
equisetum,and a few small,b:tJ'~b:l.es •. ~alles'ter gravel under, the
plots; Manchestergravelly~o,amy sand ab9~!the plots. Slop,
under plots about 25 per cent and above plots about 40 per cent,
length of slope above plots about 50 feet ..,
REPLICATiIV-Columbia, in~~rseotion pi ~ute 6 and 6A. Plots
(about 3.2x3.2feet) about 10 feet from edge of pavement sho1j1lder
on a gentle slope (5 to 10pe.r cent) ~.No q~rb at edge of I'0$.dso
pavement w.atershedcould run. across the!p1~ts. Hinckley.sanelY
Loam, well draiJ?Bd under .t~e :;plots. ..GroW:1{hq~ location a la~n..
like texture, composed of bluegrass and fescues, with someb.nts.
FIELD DATA ,,,"IT
195~·~·· 1960 - *961: 1
Table II: Weed Control Ratings in Pld"ts One Year
Arter Treatmant (October8 f 1959)
Treatment Replicates i
No. t II" III .. IV
D10 Grasses 9.5 a.5 9.0 5.5
Broadleaves 6.0 5.0 7.0 10.0
SlO Grasses 3.0 7.0 6.5 5.5
Broadleaves 4.0 " ·-·!fyO . 5.0 -10.0
D16 Grasses 10.0 10.0 10.0 9.0
.. Broadleaves . 8.0 8.0 6.5· ·lQ.O
'816 Grasses 4.0 7.5 10.0 9.0
Broadleaves 7.5 8.0 9.0 9.0
Variation due to material rates significant at 0.1 per cent level.
Variation due to material source not significant. Variation due
to replic~tion not significant for grasses, but significant ~t
five P13r cent level for broadleaves.
Applications of 32 and 64 {)ounds active for both products showed
complete sterilization (10) of both grasses and broadleavesln
all plots. Note: Nonsignif1cance is here£h meant as below tpe
20 per cent level. .
Tab].e lit: One Year Measurement of Damaged Area Below
Plots as the Number of Feetof Killed Vegetation
(October 8,1959) .