Monheim, Germany
February 23, 2006
"O-TEQ", a new innovative
formulation concept developed by
Bayer CropScience,
is set to significantly improve the activity of systemic
insecticides. Products like Proteus®, Biscaya® and Confidor®
O-TEQ which are based on this technology, assure excellent
biological performance. In many countries patents for these
products have been applied for or already granted (EP 1 401
272). These products offer outstanding reliability that is
barely affected by the weather conditions during and after
application. Further advantages for the user are outstanding
rainfastness and a broad application window which permits
extremely flexible timing. This new formulation once again
confirms Bayer CropScience´s place at the cutting edge of
technology.
O-TEQ products are easily recognizable by their characteristic
separation into two phases, called "syneresis". This effect is
caused by a weakly interacting network of active ingredient
particles in the oil phase which, during storage, is compressed
due to gravity in a process known as "bleeding" This separation
can easily be re-dispersed before the product is applied by
shaking briefly.
In 2005, Bayer CropScience launched O-TEQ-based insecticides in
Romania and Cuba. During the current year 2006, the company
plans to launch products from the chloronicotinyl /
neonicotionoids range with this technology in the UK, Portugal
and Africa.
The development of this concept was fueled by the idea of
resolving common difficulties encountered in the application of
crop protection products, especially the loss of active
ingredient due to droplet reflection or foliar run-off. Even if
the spray droplets adhere to the plant, poor coverage or uneven
distribution can lead to decreased efficacy, while slow initial
activity can cause problems when rain washes off the product.
The penetration of the product into the leaf is another
difficult but important step, as sucking insects can otherwise
not be controlled. In order to enter the leaf tissue, the active
ingredient must penetrate the waxy cuticular layer of the leaf,
after which it can be distributed by the water and mineral
nutrient streams in the plant. If this is not achieved, the
plant is not optimally protected from insecticidal damage.
The innovative O-TEQ formulation, which consists of a vegetable
oil in combination with various adjuvants, is designed to
resolve these difficulties. When sprayed onto the leaves, the
oil/additive combination induces high retention of the spray
droplets. Once the water that is contained in the spray has
evaporated, the oil and specific adjuvants cover the active
ingredient particles and spread over the leaf surface, resulting
in optimized coverage and penetration. The adjuvants in the
O-TEQ formulation then partly dissolve the waxy structures of
the leaves and include increased translocation of the active
ingredient, which then spreads evenly through the plant.
Due to the described features, products based on the O-TEQ
formulation show excellent rainfastness of the spray residue
associated with marginal run-off behaviour. Overall these
characteristics lead to superior biological performance and
better robustness following application. A faster onset of
action is achieved, which allows more flexible timing of
application.
Bayer CropScience, a subsidiary of Bayer AG with annual sales
of about EUR 6 billion, is one of the world’s leading innovative
crop science companies in the areas of crop protection,
non-agricultural pest control, seeds and plant biotechnology.
The company offers an outstanding range of products and
extensive service backup for modern, sustainable agriculture and
for non-agricultural applications. Bayer CropScience has a
global workforce of about 19,000 and is represented in more than
120 countries. |