ENVOY Spray Adjuvant
Product Description
Envoy™ is a blend of buffering agents, non-ionic surfactants and canola oil.
Oil (467g/L) - Australian Grown Canola Oil
Carrier, maximises herbicide availability by reducing spray
droplet evaporation through the air and on leaf surfaces
Sticker, increases spray droplet retention on target, reduces
droplet rebound
Penetrator, assists active ingredient penetration of weed
surfaces
Wetters (280 g/L) - Spreader, reduces the tension in droplets
allowing greater coverage.
Surfactant, increases absorption through the leaf surface
Buffer (137 g/L) - Protects pH sensitive agricultural products
from deactivation.
Envoy Spray Adjuvant is a unique 3 in 1 product designed for
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.
Product Performance
Most Canola oil based adjuvants provide only oil and minimal wetter.
Envoy Spray Adjuvant goes further by including a buffering system
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).
Alkaline Hydrolysis is the process where active ingredients break
down in alkaline aqueous environments (eg. Spray Water.)
The loss
of activity of the agricultural chemical is dependant primarily upon;
1. The level of alkalinity in the spray water
2. The time that the agricultural chemical is in the water
3. The degree of sensitivity of the agricultural product
Other agricultural products may be sensitive to acidic conditions
(pH<7) and lose some of their activity when present in low pH
water.
To minimise the loss of activity of sensitive agricultural
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 Product Info Sheet.
Product Usage
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
agricultural products label and if in doubt about using Envoy
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.
Key Points
Envoy Spray Adjuvant provides 3 in 1 user convenience to reduce
costs in time and money.
Agricultural product performance is enhanced as
The unique buffering system minimises product degradation
due to pH hydrolysis effects
Losses are minimised due to reduced spray droplet evaporation
through the air and on target surfaces
Target coverage and absorption is increased
Soft on the environment – Biodegradable
Consistent and Reliable – Manufactured according to a quality
management system.
Evaluation and Testing
When used as directed, Envoy spray adjuvant will protect the
activity of pH sensitive agricultural products in all types of pH
conditions encountered in spray water.
TRIAL 1 In pH 7 spray water, Envoy improves glyphosate
performance. In pH 9 spray water glyphosate performance
deteriorates while Envoy maintains glyphosate performance.
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
performance even when glyphosate has been in contact with
Envoy treated alkaline water for 4 hours before spraying.
