Vol. 16—1962 - NorthEastern Weed Science Society

fJ Table 3. CcBparison of Several. Herbicides for Weed Control in lTartsplanted. Tomatoes
r-I in 1960, Georgetown,. Delaware.
Herbici~ Weed Control on 8/1il-, percent Maiicetable Crop injury
and rate Yield, on 7/20,
Broadleafs .Annual Grasses Nutgrass Tons/A percent
Tillam spray3, 4 Ib/A 68 73 75 26.6 4 0
Tmam spray3, 6 Ib/A 79 83 89 27.3 0
Eptam granular3, 2 Ib/A 78 69 83 24.1 4 0
Eptam granuiarJ, 4 Ib/A 91 79 91 22.7 4 28
ADdbeh~ar, 51b/A" 58 76 48 19.5 4 13
Dactbal spray, 8 Ib/A 75 63 50 23.~ 0
Dactbal granular,8 Ib/A 53 53 70 27.4 0
Cultbated cbe ck 100 100 100 28.6 0
Unhoed check C 0 0 24.6 0
LSD S% 16.4 17.1 23.1 1.8 7
~.
1. Herbicides were applied 4 and 7 weeks after plants were set in field.
2. This _s 7t weeks after last herbicide application.
3. These herbicides were incorporated by two cultivations.
4. Yields significantly lower than those from the cultivated check plots.
COll:LUSIOlC3(continued): . weeds until crop plants became siX inches tall. Ho crop injury was
noted at these rates. PCP, 51b/A, or KOCH,16 Ib/A, plus TeA, 3 Ib/A, applied a day before
crop emergence were almost as effective as Diphenamid.
Tillam spray or granular, 6 Ib/A, or Amiben granular, 5 Ib/A, were most effective for
weed control on transplanted peppers. 'l'1llam spray caused a alight temporary burning of pepper
foliage 1:1 1961. The most effective methods of incorporating Tillam spray were the following:
Rototilling 3 inches deep, two cultivations, t inch of irrigation, or two· cultivations followed
by t inch of irrigation. Tillam granular am Amiben granulE~. were most effective when t inch
of irrigation followed just after application.
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