Vol. 16—1962 - NorthEastern Weed Science Society

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Table I. Average percent crabgrass cover, injury rating, crabgrass plants present and control over check
plots for the various formulations and rates of pre-emergent herbicides tested.
crabgrass
TrePtinent % act •. 'llJ/A
plants/sq. ft.
9/18161 7/~'/61 9/1 8/ 61 9/18/61
% control
Over chec
1. Tiif\W'.ali,n .(V~m.) 2.00 2- 0,,0 1.0 0.1 0.0 100
2. Trlfil¢.aJ.ifl., (Vei'm.) 2.00 4 Q"O 1,,3 0.5 0.0 100
3. Trlflliraiin (Verm.) 2.00 6' 0.0 2.0 1.5 0.0 100
4. Triflura11n (Fert.) .92 4 0,,0 1..0 0.5 0.0 100
5. Dipropalin (Verm.) 2.00 2 2.J 0.0 0.0 2.2 54
6. Diprop.alin (Verm.) 2.00 4 0.7 0.0 0.1 0.2 96
7.. Dipropalin(Verm.) 2.00 8 0.0 0.0 0.0 0.0 100
,~~ D~~l.~JF~t·)\f9,2· 4 1..7 O..Q 0..0 1.7 64
,g~ ~¥;ne~V~. i ll'.:iQ. 30 O,~ O,Q' 0,0 0.2. 96,
l~ ~aF:iJ.tl (Fert.) [.~'~~. ~d h~' (/.,0 0.0 QJ! 82 ..'
It. Dactha1G"1.51~50. 5. 1..3 O.b 0..0 .0 ..5 . 89
12. Dacthal G-l.5 1.50 10, 0.,3 0...2 0.1 0.0 100
13. Dactha1 G-l.5 1.50 15 0.,0 0.2 0.5 0.0 100
14. Dactha1,w-50 (Rid) 2.30 9.8 0.0 0,,2 0,,1 0.0 100
15. Dactha1 W-50
. •(" i togrpw) 2.53 1'0.8 0.0 0.3 0.7 0.0 100
16.,. NiA~7-Q,-;;" -- . 5.00 6 16,,3 0,,0 0,,0 13,2 ,0
l~L_ 0"0
~-mt.c. f:~~~:
\;,~ 00
0;
- .. all.- ci'n'__.G. Z~ . ., £1'& &:8 ~j
QV
..
19.. SWam!" 'SoC. 4 1bfflal. 30 5,7 ().O .~2 2.9 46-
20. BtfndaneAtta. 4 Iblga1. 10. 16,7 0,0 0.0 8.8 0
21 .. Bandane Atta. 4 lb!gal. 20 3,,0 0.0 0.0 2,,8 39
22. Bandarie Atta. 4 1b!gal. 30 2.7 0.0 0.0 1.0 79
23. Bandane-Verm.· 4 Ib!ga1. 10 16.-1 0.0' 0.0 ·10.5 a
24. Bandane Verm. 4 lb!gal. 20 10,3 0.0 0.0 1.7 64
25. Bandane Verm. 4 1b!gal. 30 2.0 0.0 '0.0 1.0 79
26. Diphenatrile
. ,---
-(Agri6e-}------ .--. 5.85 .• -26· ... -0.0 0..0· .., .---0.0. -O.{). 100
.l:~'·i']~~; i (·::.'~,:;J-·1'j
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