Method of applying an active substance to plants and a...

Details Method of applying an active substance to plants and a... Method of applying an active substance to plants and a...

A - Human Necessities

01

N

A01N 25/24 (2006.01) A01N 43/50 (2006.01) A01N 43/653 (2006.01)

Patent

CA 2243479

A method of applying a layer-form active ingredient depot with delayed release of active ingredients to plants or plant parts, having at least one pressure-sensitively adhering matrix layer (A) which comprises active ingredient and is in two-dimensional contact with the plant surface, and one back layer (B) which is essentially free from and impermeable to active ingredient and is on the side remote from the plant is characterized in that the layer (A) is produced by painting in the desired two-dimensional pattern at the site of application on the plant from a spreadable, pressure-sensitively adhering, polymer-based composition which comprises active ingredient and then on the said layer (A) the layer (B) is produced by painting or spraying.

L'invention concerne un procédé permettant d'appliquer, sur des plantes ou des parties de plantes, une couche de principe actif à libération retardée. Cette couche de principe actif comprend au moins une couche matricielle (A) adhésive qui contient le principe actif et est en contact plan avec la surface de la plante à traiter, ainsi qu'une couche de base (B) sensiblement exempte de principe actif et imperméable audit principe actif, située du côté faisant face à la plante. Ce procédé se caractérise en ce que la couche (A) qui consiste en une composition à base de polymère, applicable au pinceau, adhésive et contenant le principe actif, est appliquée au pinceau sur la plante, sur le lieu d'application, selon la structure voulue. La couche (B) est ensuite appliquée sur la précédente, au pinceau, ou au pistolet.

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