Product Bulliten Envoy AGR30

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ENVOY
†
S P R AY A D J U V A N T
Oil (467g/L) - Australian Grown Canola Oil
Carrier, maximises herbicide availability by reducing spray
droplet evaporation through the air and on leaf surfaces
TRIAL 1
Affect of pH on spray performance
HERBICIDE:
SPRAY RATE:
WEED:
SPRAY TIMING:
Glyphosate 70g ai/ha
64 L/ha
Annual rye grass 2-3 leaf stage
Immediate use after mixing
Sticker, increases spray droplet retention on target, reduces
droplet rebound
% Weed Control 14 DAT
100 _
surfaces
84
80 _
Wetters (280 g/L) - Spreader, reduces the tension in droplets
91
91
Penetrator, assists active ingredient penetration of weed
75
60 _
allowing greater coverage
Surfactant, increases absorption throu gh the leaf surface
40 _
Buffer (137 g/L) - Protects pH sensitive agricultural products
20 _
from deactivation
0 _
pH9
pH7
Glyphosate 450g/Lt
Glyphosate 450g/Lt + Envoy 0.5%
Product Description
Envoy Spray Adjuvant is a unique 3 in 1 product designed for
Product Bulletin
knockdown herbicides - based on Canola oil, it also contains a high
concentration of Surfactants and a buffering system that is
designed to enhance the performance of pH sensitive agricultural
products in spray water with a pH greater than 8.0 or less than 6.0.
TRIAL 2
Affect of timing on spray performance
HERBICIDE:
SPRAY RATE:
WEED:
SPRAY WATER:
Glyphosate 70g ai/ha
64 L/ha
Annual rye grass 2-3 leaf stage
pH 9.0
% Weed Control 14 DAT
Testing and Evaluation
100 _
When used as directed, Envoy spray adjuvant will protect the
activity of pH sensitive agricultural products in all types of pH
83
83
80 _
75
conditions encountered in spray water.
60
60 _
TRIAL 1 In pH 7 spray water, Envoy improves glyphosate
performance. In pH 9 spray water glyphosate performance
40 _
deteriorates while Envoy maintains glyphosate performance.
20 _
TRIAL 2 The longer glyphosate is in contact with alkaline water,
the less active it becomes. When Envoy is added first to alkaline
spray water it neutralises the alkalinity and maintains glyphosate
0 _
Immediate use
After 4 Hours Storage
performance even when glyphosate has been in contact with
Glyphosate 450g/Lt
Envoy treated alkaline water for 4 hours before spraying.
Glyphosate 450g/Lt + Envoy 0.2%
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Product Performance
Key Benefits
Most Canola oil based adjuvants provide only oil and minimal wetter.
Envoy Spray Adjuvant provides 3 in 1 user convenience to reduce
Envoy Spray Adjuvant goes further by including a buffering system
costs in time and money.
that is designed to neutralise spray water and protect pH sensitive
agricultural products. Certain agricultural products (eg. Glyphosate)
can lose some of their activity when mixed in alkaline water (pH>7).
Agricultural product performance is enhanced as
The unique buffering system minimises product degradation
Alkaline Hydrolysis is the process where active ingredients break
due to pH hydrolysis effects
down in alkaline aqueous environments (eg. Spray Water.) The loss
Losses are minimised due to reduced spray droplet evaporation
of activity of the agricultural chemical is dependant primarily upon;
through the air and on target surfaces
1. The level of alkalinity in the spray water
Target coverage and absorption is increased
2. The time that the agricultural chemical is in the water
Soft on the environment – Biodegradable
3. The degree of sensitivity of the agricultural product
Consistent and Reliable – Manufactured according to a quality
Other agricultural products may be sensitive to acidic conditions
management system.
(pH<7) and lose some of their activity when present in low pH
water. To minimise the loss of activity of sensitive agricultural
Suggestions for use
products, simply add Envoy to the spray water first. Envoy is
especially designed to bring the spray water’s pH into a neutral
range (pH 6.5-7.5) refer to Table 1.
The recommended usage rate for all applications of Envoy is in
the range 200 mL – 500 mL per 100 Litres of the spray solution.
For crop safety always strictly follow the directions on the
Table 1
Initial pH
of Water
4
7
9
9 / 340 ppm
CaCO3
agricultural products label and if in doubt about using Envoy
Water pH after Product Addition
Envoy 0.2%
Envoy 0.5%
6.7
6.8
7.5
7.2
7.5
7.2
7.5
7.2
always test by application to a small area before using it on a
full-scale basis.
Caution: Envoy is not recommended for use on crops,
fruit trees, vines or other desirable vegetation as foliar injury
may result.
Table 1 shows that Envoy neutralises alkalinity in water that can reduce
glyphosate performance. Eg. When 0.5% Envoy is added to water with pH
9.0 it neutralises the alkalinity and adjusts the water’s pH to 7.2.
General Specifications
Appearance
Viscous Amber Liquid
Colour
8-12 Gardner
Specific Gravity (20ºC)
0.93 – 0.94
Always strictly follow label instructions before use
† Trademark used under licence
The Company
Victorian Chemical Company (VCC) is located in Melbourne, Australia,
and is a specialist manufacturer of a range of environmentally
responsible oil and surfactant products. Established during 1933, VCC
provides products and services to a wide range of industries
including; Agriculture, Construction, Metal Manufacturing and
Chemical Formulators. VCC is highly skilled at developing new
product formulations, customising existing products to suit individual
requirements and also supply high performance products that will
provide enhanced safety to the user and the environment. VCC’s
operations are governed by the international quality system ISO 9001
2000 which ensures consistent and reliable product performance.
Victorian Chemical Company Pty. Limited
83 Maffra Street, Coolaroo, Victoria 3048, Australia
Telephone: (03) 9301 7000 Facsimile: (03) 9309 7966
Website: www.vicchem.com Email: products@vicchem.com
Disclaimer: Victorian Chemical Company Pty.
Ltd. has taken all reasonable care in preparing
the information contained in the bulletin.
However because the use of this information is
beyond our control, Victorian Chemical
Company Pty. Ltd. accepts no responsibility for
any consequences whatsoever arising from the
use of this information except responsibility
imposed under any applicable law.
TM
The Australian Solution
AGR30 211008