29
VIII
i.)
Codacide Extending Herbicide Efficacy - Trials Summary:
Plant Protection Actives
Crop
Target
Synopsis
Country
Reference
2,2-DPA (2,2
dichloropropionic acid)
Serrated tussock (
Nassella trichotoma
)
Codacide Oil (1.5 l/ha) mixed with 2,2-DPA (2.2 kg ha
-1
) increased control of serrated
tussock grass assessed 16 weeks after application with a 8.1 damage score and 40% killed
as compared to 2,2-DPA applied alone with a 4.5% damage score and 0% killed.
Australia
Pritchard and
Bonilla, 1999
2,4-D Amine
Stinkweed (
Thlaspi arvense L
.)
The addition of Codacide Oil to 2,4-D Amine at full rate and at half rate significantly
enhanced control as compared to 2,4-D Amine
alone at half rate and full rate.
Canada
Harker, 1997 b.
Asulam + Tribenuron-methyl
Bracken (
Pteridium aquilinum
)
Asulam + Tribenuron-methyl activity was significantly increased by the addition of Codacide
Oil and increased the control of bracken as compared to Asulam + Tribenuron-methyl
applied alone
UK
Lawrie and
West, 1993
Asulam (Asulox)
Bracken (
Pteridium aquilinum
)
The addition of Codacide Oil (2 l/ha) to Asulox (11 l/ha) gave improved control of bracken
at 83.7% control in comparison to Asulox applied alone (11 l/ha) which gave 53% bracken
control
UK
Elveden, 1997
BA 6-benzyladenine (CyLex -
Desiccant Post bloom
thinner)
Post bloom
thinner on red “Delicous”
apple.
Efficacy was
improved most by Codacide compared to Tween 20 and Silwett L77 with good
thinning rates achieved together with a corresponding increase in fruit size and flesh
pressure and significantly so as compared to BA control alone and BA plus Silwett L77
treatments.
Australia
Bound, 2001
Bentazone (Adagio)
Maize
Broadleaved Weeds
Barnyard grass (
Echinochloa crus-galli
)
Black nightshade (
Solanum nigrum
)
Adagio SG was applied alone at normal rate (1.6 kg/ha) and at reduced rate (1.12
kg/ha)
and with Codacide (1.25 l/ha).
Codacide improved the efficacy of Adagio at both rates for
overall weed control.
Improvement in the efficacy of low rate of Adagio was similar to full
rate Adagio applied alone.
No Phytotoxicity.
France
Biotek
Agriculture,
2004 c.
Bentazone + dicamba
(Cambio)
Maize
Hedge Bindweed (
Calystegia sepium
)
Common lambs quarters (
chenopodium
album
)
Cambio was applied alone at normal rate (2.5 kg/ha) and at reduced rate (1.75
kg/ha) and
with Codacide (1.25 l/ha).
Codacide imporved the efficacy of high rate Cambio in control of
C. Sepium
and improved the efficacy of both rates Cambio for control
C. Album
.
France
Biotek
Agriculture,
2004 b.
Benazolin + clopyralid
(Benasalox)
Spring Oil
Seed Rape
Common lambs quarters (
chenopodium
album
),
Lamium sp.,
Common chickweed
(Stellaria media)
Spring oilseeds.
Codacide enhanced the effect of the herbicide against broadleved weeds
particularly
C. Album
and
Lamium sp
.
Codacide also markedly improved the effect of lower
rates of herbicide against
S. media
.
Sweden
Halgren, 1987a
Bromoxynil (Emblem)
Maize
Black nightshade (
Solanum nigrum
)
Emblem was applied alone at normal rate (2.25 kg/ha) and at reduced rate (1.50
kg/ha)
and with Codacide (1.25 l/ha).
Codacide improved the efficacy of low rate Emblem for the
control of
S. nigrum
France
Biotek
Agriculture,
2004 e.
Bromoxynil (Pardner)
Sunflowers
Desiccation
To determine the efficacy of Codacide and Pardner at a range of rates in comparison to
other dessication systems.
On the basis of dry matter assessment, it was seen that
Codacide and Pardner in a mixture of 2 l/ha each, were effective in dessicating sunflowers
to the required dry matter and timing and was as effective as the other adjuvant systems
but more economical in costs.
Hungary
Hungarian
Ministry of
Agriculture,
1995
Carbaryl
Cox and
Bramley
Apples
Thinning in Apples
To test the efficacy of carbaryl at full rate with and without Codacide.
With the addition of
Codacide the percentage of Cox apples above 65mm increased from 54% to 60%.
With the
increased addition of Codacide the percentage of Bramley apples above 80mm increased
from 46% to 53%.
UK
EMIHR, 1988
Carbaryl (Thinsec 450)
Bramley
Apples
Thinning in Apples
To test the efficacy of Thinsec at full rate with Codacide compared to the wetter/spreader
Agral, as a thinning agent.
With the addition of Codacide the average fruit yield increased
from 17.1 to 22.9 t/ha.
Average fruit diameter was also increased from 88.7 mm to 90.25
UK
ADAS, 1989
