Method for controlling the application of an insecticide and composition therefor
OwnerHisham Mohamed Mahgoub, Amina Ahmed Mahmoud Fahmyinventors
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Abstract
The invention relates to a method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing the colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering selected areas of the surface to be checked.
Claims5
Method for controlling the application of an insecticide on a surface, which comprises the use of an insecticide composition including a pH indicator colorant in an aqueous medium changing from a colored wet state to colourless after drying in the air on said surface, and the recoloration of the insecticide composition by remoistering with water the selected areas of the surface to be checked.
Insecticide composition comprising at least one insect killing agent in aqueous solution, a coloured pH indicator which becomes colourless upon exposure to air and drying, and at least a compound for adjusting the pH of the composition to a pH at which the pH indicator is colored in the wet state, and in which the content of pH indicator is of 0.01 to 1.0 wt %, preferably from 0.05 to 0.5 wt %.
Insecticide composition according to claim 3, in which the pH indicator is 3-nitrophenol, 4-nitrophenol, phenolphtalein or thymolpthalein.
Dependencies are inferred from the claim text.