Table 2. Response of sugarcane and weeds at 6 and 10 weeks
 sand soil (HImokalee). Values are percentages of


after application of preemergence herbicides on
the best treatment.


Sugarcane


Herbicide and Rate/A ai


 Stand
6 wk 10 wk


Tolerance
6 wk 10 wk


Annual grass
6 wk 10 wk


Weed Control
 Broadleaf
6 wk 10 wk


,Bermudagrass
6 wk 10 wk


amlben
fenac, Amchem
fenac, Amchem
 + Encap 250 gpa
fenac, Amchem
pyrazon
DCPA
brcmacil
diuron
diuron, 4.8 Ib.
 + Encap 250 gpa
linuron
monuron -
fenac, duPont
ametryne
atrazine
atrazine, 4 Ib.
 + Encap 250 gpa
atrazine
prometone
prometryne
propazine
simazine
norea


6 Ib.
6 Ib.


 9
 10
 16
2.4
4.8


4.8
4.8
 9
 4
 4


Ib.
lb.
Ib.
Ib.
lb.


lb.
Ib.
lb.
lb.
lb.


lb.
lb.
lb.
lb.
Ib.
Ib.


tritac 10 Ib.
diphenamid (Lilly) 8 Ib.
trifluralin, incorp.6 Ib.


83%
70

95
79
83
100
79
83

95
87
83
95
87
95
100
79
87
91
91
83
91
91
87
87


75%
58

87
58
87
87
37
87

91
79
75
87
87
91

10C
79
87
91
91
75
83'
87
83
87


87
66

95
66
83
87
58
79

87
70
66.
87
79
83

91
79
87
83
87
79
70
87
75
83


62%
45

95
45
66
87
25
58

91
66
58
66
79
79

95
75
79
75
83
62
66
70
75
79


87%
100

100
100
87
87
100
95

91
100
100
100
100
95

91
100
95
95
95
100
100
87
100
87


62%
95

100
100
87
75
100
100

75
91
91
100
75
87

87
91
83
75
83
87
95
45
83
83


75%
100

100
100
91
87
100
100

95
100
100
100
95
100

95
95
91
87
95
100
95
95
87
83


25%
100

100
100
87
87
100
100

95
95
100
100'
83
87

100
91
79
45
87
100
91
91
45
33
33


20%
87

58
87
i33
25
95
79
62
87-
75
87
83
70

58
83
70
50
58
70
83
29
41
37


 37%
 75

 70
 83
 29
S. 37
 100
 58

 66
 54
 66
 87
 54
 58

 50
 62
 45
 45
 50
 58
 75
 37
 45
 33


I _


I


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