Flies-killing system comprises a base layer, a covering layer, first active substance layer applied as an intermediate layer, second active substance layer applied as a barrier layer, and a pasty attractant layer
The flies-killing system comprises a base layer (1), a covering layer, a first active substance layer (3) applied as an intermediate layer, a second active substance layer (4) applied as a barrier layer, and a pasty attractant layer. The first and second active substance layers are formed as a layer containing a stomach insecticide and/or a contact insecticide, respectively as active substances in pasty form. The active substance is dissolved in a solvent for the reduction of its volatility and/or its vapor pressure and is printable on the respective layer by screen-printing method. The flies-killing system comprises a base layer (1), a covering layer, a first active substance layer (3) applied as an intermediate layer, a second active substance layer (4) applied as a barrier layer, and a pasty attractant layer. The first and second active substance layers are formed as a layer containing a stomach insecticide and/or a contact insecticide, respectively as active substances in pasty form. The active substance is dissolved in a solvent for the reduction of its volatility and/or its vapor pressure and is printable on the respective layer by a screen-printing method. The active substance incorporated in the first active substance layer and/or a part of it exhibits a higher volatility than the active substance incorporated in the second active substance layer. The paste of 0.5 to 22 mg/cm 2> is applied as the first and second active substance layer with a thickness of 0.05-1.5 mm. The active substance of each active substance layer is incorporated into an attractant paste. The first active substance evaporates in larger quantities from the second active substance layer and the second active substance is optionally dissolved in the volatility-reducing solvent, essentially remains as stomach and/or contact insecticide in the second active substance layer. The concentration of the active substances in the first and second active substance layers are 0.09-3 mg/cm 2> and 0.1-1.5 mg/cm 2> respectively. The first active substance diffuses from the first active substance layer into or beyond the second active substance layer, so that a stomach insecticide mixture of the first and second active substance is made available for a given time period in this second active substance layer, as a function of the quantity of the first active substance. The paste of 0.05-5 mg/cm 2> is applied on the active substance layer for the formation of the covering layer with a thickness of 0.001-0.5 mm. The covering layer is formed as a continuous, planar layer or exhibits a porous structure. The pasty attractant layer (6) is arranged between the base layer and the first active substance layer and exhibit a given attractant and/or odoriferous substance. The paste of 0.5-5 mg/cm 2> is applied on the base layer for the formation of the attractant layer. Above the base layer, the first active substance layer is applied, on which the second active substance layer is applied, on which the covering layer is applied. The base layer is formed by a printable substrate made of foil and/or paper and/or textile and/or cardboard and/or paperboard. An independent claim is included for manufacturing of a flies-killing system.
