Vol. 16—1962 - NorthEastern Weed Science Society

Vol. 16—1962 - NorthEastern Weed Science Society Vol. 16—1962 - NorthEastern Weed Science Society

08.06.2015 Views

504 TADLE3: Pre-oemergence and poet-energence crabgHaS control with a combination of calci\Dl1 propyl arsonaw"ald:calcium methyl arsonate. Per Cent Crabgrass Pounds per 1000sq. ft. Cont1'01 Dur~ Seuof1' ***. Ca~h'Op.As. 08;..Meth.As. App¥ed Looation* '.. :& P¢«, ...Iftl!litI. .44 .14 . .66 .21 -- - or 94 48. 24 :3 ~ ACP ** ** $1 30 or (~ 82 5$ 10 June PV 72 79 28 ** ~ or r.** 41 2 ~ ACP ... ** 29 7 '.88 .28 MI(y OT '94 84 79 l.6 June ACi? 100 98 80 37 June PV 97 88 48 July • ACP 'H $9 ** 10 ** J~ or ** $1 J6 ** J..U .3$ or 96 90 80 ., J~' or ** ** 39 7 - 1.32 .44 Mat or 1

505 DIPHENATRILE,DJPROPALIN, ANp,!TRIFLURALINAS " 1 PRE-EMERGEN TURF HERBICIDES .. 2 E. F. Alder and R. B. Bevington I Diphenatrile (diphenylaceto~itrile), dipropalin (N,N-di(n-propyl)­ 2,6-dinitro-£-toluidine) an4 trifluralin (2,6-dinitro-N,N-di-~propyl-a,a,a-trifluoro-E-toluidine) have been extensively tested as pre-emergent herbicides for turf at the Greenfield Laboratories of Eli Lilly and Company. Sixty turf experiments, consisting of over 3,500 plots, were conducted. Emphasis in these inve~tigations has been placed on thi determinatloi of effectiveness, appropriate application rates, ,duration of ~ctivity, safety to turfgrasses and ornamentals, effects of ea~ypost-emergent applications on weed grasses, and length of delay before reseeding. lli12h~n!!tri1e The herbiC1dalproperties ofd1phenatrlle ~ve been previously; reported in detai1 (1). At 3'0 pounds per ap:re. the. compound ,~s controlled seedling weed granes (barnyardgl,a,~", g ooaeg r-as s , .foxtails, and crabgrasses) in turf. D1phen,.trlle is completely safe to established turfs, trees, shrubs, a~'

504<br />

TADLE3: Pre-oemergence and poet-energence crabgHaS control with a<br />

combination of calci\Dl1 propyl arsonaw"ald:calcium methyl<br />

arsonate.<br />

Per Cent Crabgrass<br />

Pounds per 1000sq. ft.<br />

Cont1'01 Dur~ Seuof1' ***.<br />

Ca~h'Op.As. 08;..Meth.As. App¥ed Looation*<br />

'.. :& P¢«, ...Iftl!litI.<br />

.44 .14 .<br />

.66 .21<br />

--<br />

-<br />

or<br />

94 48. 24 :3<br />

~ ACP<br />

** **<br />

$1 30<br />

or (~ 82 5$ 10<br />

June PV 72 79 28<br />

**<br />

~ or r.** 41 2<br />

~ ACP ... ** 29 7<br />

'.88 .28 MI(y OT '94 84 79 l.6<br />

June ACi? 100 98 80 37<br />

June PV 97 88 48<br />

July • ACP 'H<br />

$9 ** 10<br />

**<br />

J~ or ** $1 J6<br />

**<br />

J..U .3$ or 96 90 80 .,<br />

J~' or<br />

** **<br />

39 7<br />

-<br />

1.32 .44 Mat or 1

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!