ture is especially adapted to localities such as ditch banks on muck soils, where
water erosion of bare soil could be a serious problem and where a relatively fair
control of weeds is sufficient.


Ammate
2,4-D,
etc.).


 Good to excellent control of brush was accomplished with 2,4-D, 2,4,5-T.
and high rates of the Karmex herbicides. Retreatment was necessary when using
2,4,5-T and Ammate to'kill new regrowth of the brush elderberriess, willows,


 In most instances high temperatures and good moisture in the soil, espe-
cially in the upper layer, are necessary for effective control of weeds. However, in
the case of Dalapon or mixtures of Dalapon and 2,4-D, moisture in the upper layer of
the soil is not as important as with TCA, Karmex herbicides, or polybor chlorate.

 When using 2,4-D or 2,4,5-T it is recommended not to spray areas closer
than 1/4 of a mile to a susceptible crop in order to avoid possible damage due to
drift of the material.

 Classification of the herbicides according to their usefulness follows:


CGass killers mainly


Dalapon
TCA
MH-40
C6249
Dalapon


Rates in Lbs/A


10-20
100
 6
 20
 5-5


 Remarks

20 Ibs/A for Napier grass

Small grasses

Para grass


Broad leaf and brush killers mainly:


2,l-D
2,14,-T
Ammate
Karmex W
Karmex FW


2 or 3 applications may
be necessary
 It

 It


Contact weed killers mainly:


Oktone in diesel oil
PCP
Diesel oil


8
10%
30-60 gal./A


For herbaceous plants
 II
 II


Soil sterilants mainly when used
at high rates:


Karmex W
Karmex FW
Polybor-chlorat e


Combinations of grass and broadleaf
herbicides proven to be effective:

 Dalapon and 2,h-D
 Dalapon and Karmex U


 80-100
 80-100
1600


10 + 2
10 + 2-5


Kill all kinds of weeds
 and brush
 II


Small grasses
 It Ii


2
2
30
5-ho
5-ho